./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/dll2n_append_unequal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2n_append_unequal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8e4e2611155a39995b0fc64ec45d64e4c98f789d2737326ee819380629347be0 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:35:54,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:35:54,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:35:54,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:35:54,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:35:54,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:35:54,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:35:54,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:35:54,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:35:54,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:35:54,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:35:54,919 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:35:54,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:35:54,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:35:54,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:35:54,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:35:54,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:35:54,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:35:54,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:35:54,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:35:54,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:35:54,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:35:54,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:35:54,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:35:54,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:35:54,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:35:54,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:35:54,954 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:35:54,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:35:54,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:35:54,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:35:54,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:35:54,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:35:54,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:35:54,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:35:54,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:35:54,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:35:54,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:35:54,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:35:54,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:35:54,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:35:54,970 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-25 20:35:55,003 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:35:55,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:35:55,004 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:35:55,005 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:35:55,005 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:35:55,006 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:35:55,006 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:35:55,006 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:35:55,007 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:35:55,007 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:35:55,007 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:35:55,008 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:35:55,008 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:35:55,008 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:35:55,009 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:35:55,009 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:35:55,009 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:35:55,010 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:35:55,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 20:35:55,011 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 20:35:55,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:35:55,012 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 20:35:55,012 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 20:35:55,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:35:55,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 20:35:55,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:35:55,013 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-25 20:35:55,013 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-25 20:35:55,013 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-25 20:35:55,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:35:55,014 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-25 20:35:55,014 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 20:35:55,014 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:35:55,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:35:55,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:35:55,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:35:55,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:35:55,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:35:55,016 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:35:55,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:35:55,017 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:35:55,017 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:35:55,017 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e4e2611155a39995b0fc64ec45d64e4c98f789d2737326ee819380629347be0 [2021-11-25 20:35:55,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:35:55,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:35:55,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:35:55,360 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:35:55,361 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:35:55,363 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/list-simple/dll2n_append_unequal.i [2021-11-25 20:35:55,441 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/data/c5223243a/a932f62833f54fb6bf729f89a67ca8de/FLAGe4aaf2dbe [2021-11-25 20:35:56,100 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:35:56,101 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/sv-benchmarks/c/list-simple/dll2n_append_unequal.i [2021-11-25 20:35:56,117 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/data/c5223243a/a932f62833f54fb6bf729f89a67ca8de/FLAGe4aaf2dbe [2021-11-25 20:35:56,293 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/data/c5223243a/a932f62833f54fb6bf729f89a67ca8de [2021-11-25 20:35:56,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:35:56,298 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:35:56,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:35:56,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:35:56,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:35:56,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:35:56" (1/1) ... [2021-11-25 20:35:56,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67a3c3d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:56, skipping insertion in model container [2021-11-25 20:35:56,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:35:56" (1/1) ... [2021-11-25 20:35:56,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:35:56,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:35:56,774 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/sv-benchmarks/c/list-simple/dll2n_append_unequal.i[24457,24470] [2021-11-25 20:35:56,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:35:56,786 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:35:56,839 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/sv-benchmarks/c/list-simple/dll2n_append_unequal.i[24457,24470] [2021-11-25 20:35:56,841 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:35:56,881 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:35:56,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:56 WrapperNode [2021-11-25 20:35:56,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:35:56,883 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:35:56,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:35:56,883 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:35:56,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:56" (1/1) ... [2021-11-25 20:35:56,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:56" (1/1) ... [2021-11-25 20:35:56,950 INFO L137 Inliner]: procedures = 127, calls = 40, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 141 [2021-11-25 20:35:56,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:35:56,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:35:56,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:35:56,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:35:56,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:56" (1/1) ... [2021-11-25 20:35:56,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:56" (1/1) ... [2021-11-25 20:35:56,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:56" (1/1) ... [2021-11-25 20:35:56,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:56" (1/1) ... [2021-11-25 20:35:56,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:56" (1/1) ... [2021-11-25 20:35:56,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:56" (1/1) ... [2021-11-25 20:35:57,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:56" (1/1) ... [2021-11-25 20:35:57,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:35:57,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:35:57,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:35:57,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:35:57,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:56" (1/1) ... [2021-11-25 20:35:57,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:35:57,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:35:57,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:35:57,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:35:57,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:35:57,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:35:57,128 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2021-11-25 20:35:57,128 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2021-11-25 20:35:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:35:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:35:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:35:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:35:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:35:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:35:57,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:35:57,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:35:57,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:35:57,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:35:57,269 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:35:57,271 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:35:57,834 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:35:57,879 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:35:57,879 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-25 20:35:57,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:35:57 BoogieIcfgContainer [2021-11-25 20:35:57,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:35:57,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:35:57,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:35:57,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:35:57,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:35:56" (1/3) ... [2021-11-25 20:35:57,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@390b6602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:35:57, skipping insertion in model container [2021-11-25 20:35:57,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:56" (2/3) ... [2021-11-25 20:35:57,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@390b6602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:35:57, skipping insertion in model container [2021-11-25 20:35:57,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:35:57" (3/3) ... [2021-11-25 20:35:57,893 INFO L111 eAbstractionObserver]: Analyzing ICFG dll2n_append_unequal.i [2021-11-25 20:35:57,900 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:35:57,900 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 47 error locations. [2021-11-25 20:35:57,984 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:35:57,993 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:35:57,993 INFO L340 AbstractCegarLoop]: Starting to check reachability of 47 error locations. [2021-11-25 20:35:58,014 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 44 states have (on average 2.3636363636363638) internal successors, (104), 91 states have internal predecessors, (104), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:35:58,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 20:35:58,044 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:58,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 20:35:58,045 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting node_createErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:35:58,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:58,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1960705037, now seen corresponding path program 1 times [2021-11-25 20:35:58,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:58,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391384467] [2021-11-25 20:35:58,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:58,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:58,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:58,380 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:58,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391384467] [2021-11-25 20:35:58,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391384467] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:58,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:58,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:35:58,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196499153] [2021-11-25 20:35:58,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:58,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:35:58,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:58,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:35:58,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:58,430 INFO L87 Difference]: Start difference. First operand has 95 states, 44 states have (on average 2.3636363636363638) internal successors, (104), 91 states have internal predecessors, (104), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:58,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:58,568 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2021-11-25 20:35:58,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:35:58,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-25 20:35:58,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:58,582 INFO L225 Difference]: With dead ends: 92 [2021-11-25 20:35:58,582 INFO L226 Difference]: Without dead ends: 90 [2021-11-25 20:35:58,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:58,589 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 8 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:58,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 131 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:35:58,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-25 20:35:58,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-11-25 20:35:58,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 43 states have (on average 2.2093023255813953) internal successors, (95), 86 states have internal predecessors, (95), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:35:58,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 99 transitions. [2021-11-25 20:35:58,643 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 99 transitions. Word has length 6 [2021-11-25 20:35:58,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:58,643 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 99 transitions. [2021-11-25 20:35:58,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:58,644 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 99 transitions. [2021-11-25 20:35:58,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 20:35:58,645 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:58,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 20:35:58,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:35:58,646 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting node_createErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:35:58,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:58,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1960705036, now seen corresponding path program 1 times [2021-11-25 20:35:58,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:58,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638471360] [2021-11-25 20:35:58,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:58,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:58,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:58,717 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:58,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638471360] [2021-11-25 20:35:58,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638471360] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:58,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:58,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:35:58,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844756937] [2021-11-25 20:35:58,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:58,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:35:58,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:58,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:35:58,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:58,722 INFO L87 Difference]: Start difference. First operand 90 states and 99 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:58,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:58,844 INFO L93 Difference]: Finished difference Result 87 states and 96 transitions. [2021-11-25 20:35:58,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:35:58,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-25 20:35:58,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:58,846 INFO L225 Difference]: With dead ends: 87 [2021-11-25 20:35:58,847 INFO L226 Difference]: Without dead ends: 87 [2021-11-25 20:35:58,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:58,849 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 3 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:58,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 133 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:35:58,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-25 20:35:58,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-11-25 20:35:58,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 43 states have (on average 2.13953488372093) internal successors, (92), 83 states have internal predecessors, (92), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:35:58,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 96 transitions. [2021-11-25 20:35:58,866 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 96 transitions. Word has length 6 [2021-11-25 20:35:58,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:58,867 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 96 transitions. [2021-11-25 20:35:58,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:58,867 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 96 transitions. [2021-11-25 20:35:58,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 20:35:58,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:58,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:58,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:35:58,869 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:35:58,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:58,870 INFO L85 PathProgramCache]: Analyzing trace with hash -540718214, now seen corresponding path program 1 times [2021-11-25 20:35:58,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:58,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812095996] [2021-11-25 20:35:58,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:58,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:59,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:59,048 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:59,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812095996] [2021-11-25 20:35:59,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812095996] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:59,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:59,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 20:35:59,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559155325] [2021-11-25 20:35:59,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:59,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 20:35:59,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:59,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 20:35:59,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:35:59,052 INFO L87 Difference]: Start difference. First operand 87 states and 96 transitions. Second operand has 7 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:35:59,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:59,290 INFO L93 Difference]: Finished difference Result 88 states and 100 transitions. [2021-11-25 20:35:59,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:35:59,291 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-11-25 20:35:59,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:59,294 INFO L225 Difference]: With dead ends: 88 [2021-11-25 20:35:59,294 INFO L226 Difference]: Without dead ends: 88 [2021-11-25 20:35:59,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:35:59,296 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 17 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:59,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 292 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:35:59,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-25 20:35:59,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 85. [2021-11-25 20:35:59,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 43 states have (on average 2.0930232558139537) internal successors, (90), 81 states have internal predecessors, (90), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:35:59,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2021-11-25 20:35:59,309 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 11 [2021-11-25 20:35:59,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:59,309 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2021-11-25 20:35:59,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:35:59,310 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2021-11-25 20:35:59,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 20:35:59,311 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:59,311 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:59,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:35:59,311 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:35:59,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:59,312 INFO L85 PathProgramCache]: Analyzing trace with hash -540718215, now seen corresponding path program 1 times [2021-11-25 20:35:59,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:59,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914596625] [2021-11-25 20:35:59,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:59,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:59,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:59,400 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:59,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914596625] [2021-11-25 20:35:59,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914596625] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:59,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:59,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:35:59,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559859964] [2021-11-25 20:35:59,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:59,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:35:59,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:59,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:35:59,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:35:59,403 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand has 6 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:35:59,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:59,624 INFO L93 Difference]: Finished difference Result 86 states and 98 transitions. [2021-11-25 20:35:59,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:35:59,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-11-25 20:35:59,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:59,626 INFO L225 Difference]: With dead ends: 86 [2021-11-25 20:35:59,627 INFO L226 Difference]: Without dead ends: 86 [2021-11-25 20:35:59,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:35:59,629 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 12 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:59,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 250 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:35:59,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-25 20:35:59,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83. [2021-11-25 20:35:59,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 43 states have (on average 2.046511627906977) internal successors, (88), 79 states have internal predecessors, (88), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:35:59,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 92 transitions. [2021-11-25 20:35:59,639 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 92 transitions. Word has length 11 [2021-11-25 20:35:59,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:59,640 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 92 transitions. [2021-11-25 20:35:59,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:35:59,640 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 92 transitions. [2021-11-25 20:35:59,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 20:35:59,641 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:59,641 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:59,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:35:59,642 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:35:59,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:59,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1063455549, now seen corresponding path program 1 times [2021-11-25 20:35:59,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:59,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583695831] [2021-11-25 20:35:59,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:59,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:59,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:59,690 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:59,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583695831] [2021-11-25 20:35:59,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583695831] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:59,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:59,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:35:59,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874984607] [2021-11-25 20:35:59,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:59,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:35:59,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:59,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:35:59,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:59,693 INFO L87 Difference]: Start difference. First operand 83 states and 92 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:35:59,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:59,735 INFO L93 Difference]: Finished difference Result 93 states and 104 transitions. [2021-11-25 20:35:59,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:35:59,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-11-25 20:35:59,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:59,738 INFO L225 Difference]: With dead ends: 93 [2021-11-25 20:35:59,739 INFO L226 Difference]: Without dead ends: 93 [2021-11-25 20:35:59,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:59,743 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 9 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:59,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 161 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:35:59,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-25 20:35:59,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 84. [2021-11-25 20:35:59,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 44 states have (on average 2.022727272727273) internal successors, (89), 80 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:35:59,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 93 transitions. [2021-11-25 20:35:59,770 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 93 transitions. Word has length 11 [2021-11-25 20:35:59,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:59,771 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 93 transitions. [2021-11-25 20:35:59,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:35:59,771 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 93 transitions. [2021-11-25 20:35:59,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-25 20:35:59,772 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:59,772 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:59,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:35:59,774 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:35:59,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:59,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1885971483, now seen corresponding path program 1 times [2021-11-25 20:35:59,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:59,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129679721] [2021-11-25 20:35:59,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:59,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:59,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:59,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:59,928 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:59,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129679721] [2021-11-25 20:35:59,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129679721] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:59,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:59,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:35:59,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457707555] [2021-11-25 20:35:59,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:59,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:35:59,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:59,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:35:59,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:59,933 INFO L87 Difference]: Start difference. First operand 84 states and 93 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:35:59,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:59,973 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2021-11-25 20:35:59,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:35:59,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-11-25 20:35:59,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:59,976 INFO L225 Difference]: With dead ends: 90 [2021-11-25 20:35:59,976 INFO L226 Difference]: Without dead ends: 90 [2021-11-25 20:35:59,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:59,981 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 1 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:59,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 156 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:35:59,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-25 20:35:59,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 89. [2021-11-25 20:36:00,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 48 states have (on average 1.9375) internal successors, (93), 84 states have internal predecessors, (93), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:36:00,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 99 transitions. [2021-11-25 20:36:00,007 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 99 transitions. Word has length 14 [2021-11-25 20:36:00,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:00,007 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 99 transitions. [2021-11-25 20:36:00,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:36:00,008 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 99 transitions. [2021-11-25 20:36:00,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-25 20:36:00,010 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:00,010 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:36:00,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 20:36:00,011 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:36:00,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:00,012 INFO L85 PathProgramCache]: Analyzing trace with hash -339675631, now seen corresponding path program 1 times [2021-11-25 20:36:00,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:00,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444229319] [2021-11-25 20:36:00,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:00,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:00,176 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 20:36:00,176 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:00,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444229319] [2021-11-25 20:36:00,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444229319] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:36:00,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327100004] [2021-11-25 20:36:00,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:00,177 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:00,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:36:00,184 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:36:00,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:36:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:00,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:36:00,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:36:00,479 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:00,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:36:00,560 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 20:36:00,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327100004] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:36:00,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1904901234] [2021-11-25 20:36:00,584 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2021-11-25 20:36:00,584 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:36:00,590 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:36:00,597 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:36:00,598 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:36:00,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:00,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:00,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:36:00,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:00,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:00,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:36:00,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:36:00,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:36:01,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:01,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:01,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:36:01,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:36:01,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:01,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:36:01,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:01,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:36:01,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:01,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:01,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:01,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:36:01,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:01,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:01,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:01,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:01,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:36:01,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:01,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:01,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:36:01,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:01,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:01,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:36:01,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:01,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:01,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:36:01,774 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:01,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2021-11-25 20:36:01,797 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:01,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:01,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:01,802 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:01,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:01,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:36:01,836 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:01,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:01,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:01,839 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:01,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:01,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 239 [2021-11-25 20:36:02,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:02,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:36:02,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:02,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 233 [2021-11-25 20:36:02,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:02,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 240 treesize of output 221 [2021-11-25 20:36:02,416 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-11-25 20:36:02,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 202 treesize of output 191 [2021-11-25 20:36:02,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:36:02,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 202 treesize of output 194 [2021-11-25 20:36:02,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:02,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 198 treesize of output 180 [2021-11-25 20:36:02,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:02,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 168 [2021-11-25 20:36:02,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:36:03,121 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-11-25 20:36:03,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 202 treesize of output 191 [2021-11-25 20:36:03,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:36:03,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:03,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 204 treesize of output 186 [2021-11-25 20:36:03,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 182 [2021-11-25 20:36:03,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:03,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 168 [2021-11-25 20:36:03,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:36:03,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:03,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:36:03,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:36:03,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:03,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:03,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:03,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:36:03,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-25 20:36:03,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:36:03,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:36:04,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:36:04,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:36:04,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:36:04,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-25 20:36:04,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:36:04,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:36:04,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:36:04,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:36:04,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:36:04,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:04,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:04,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:36:04,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:04,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:04,596 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:36:04,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 178 treesize of output 224 [2021-11-25 20:36:04,769 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:04,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 30 [2021-11-25 20:36:04,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:05,373 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:05,385 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:05,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 162 treesize of output 159 [2021-11-25 20:36:05,445 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:05,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 150 treesize of output 183 [2021-11-25 20:36:05,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:05,476 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:05,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 150 treesize of output 140 [2021-11-25 20:36:05,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:05,510 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:05,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 144 treesize of output 134 [2021-11-25 20:36:05,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:36:06,187 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:36:06,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 178 treesize of output 224 [2021-11-25 20:36:06,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:36:06,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:06,386 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:06,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 33 [2021-11-25 20:36:06,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:36:09,644 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:09,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 162 treesize of output 195 [2021-11-25 20:36:09,667 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:09,678 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:09,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 154 treesize of output 151 [2021-11-25 20:36:09,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:09,706 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:09,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 150 treesize of output 140 [2021-11-25 20:36:09,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:09,737 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:09,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 144 treesize of output 134 [2021-11-25 20:36:09,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:36:10,521 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:36:10,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 178 treesize of output 224 [2021-11-25 20:36:10,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:36:10,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:10,765 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:10,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 33 [2021-11-25 20:36:10,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:36:13,758 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:36:13,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 189 treesize of output 235 [2021-11-25 20:36:14,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:36:14,272 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:14,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 28 [2021-11-25 20:36:14,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 102 [2021-11-25 20:36:14,415 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:14,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 172 treesize of output 182 [2021-11-25 20:36:14,709 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:14,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 133 treesize of output 147 [2021-11-25 20:36:15,183 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 1 for LOIs [2021-11-25 20:36:15,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:36:15,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:36:15,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:36:15,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:15,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:15,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:15,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:36:15,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:15,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:36:15,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:36:15,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:15,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:15,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:15,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:36:15,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:15,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:15,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:15,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:15,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:36:15,317 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:36:17,794 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1324#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (not (= (select |#valid| |ULTIMATE.start_dll_append_~head#1.base|) 1)) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_dll_create_~new_head~0#1.offset|) (<= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= |#NULL.base| 0))' at error location [2021-11-25 20:36:17,795 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:36:17,795 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:36:17,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2021-11-25 20:36:17,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976680765] [2021-11-25 20:36:17,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:36:17,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:36:17,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:17,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:36:17,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2021-11-25 20:36:17,797 INFO L87 Difference]: Start difference. First operand 89 states and 99 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-25 20:36:17,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:17,843 INFO L93 Difference]: Finished difference Result 91 states and 101 transitions. [2021-11-25 20:36:17,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:36:17,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 24 [2021-11-25 20:36:17,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:17,846 INFO L225 Difference]: With dead ends: 91 [2021-11-25 20:36:17,846 INFO L226 Difference]: Without dead ends: 91 [2021-11-25 20:36:17,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2021-11-25 20:36:17,847 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 14 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:17,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 239 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:36:17,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-11-25 20:36:17,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2021-11-25 20:36:17,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 50 states have (on average 1.9) internal successors, (95), 86 states have internal predecessors, (95), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:36:17,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 101 transitions. [2021-11-25 20:36:17,856 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 101 transitions. Word has length 24 [2021-11-25 20:36:17,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:17,856 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 101 transitions. [2021-11-25 20:36:17,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-25 20:36:17,857 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 101 transitions. [2021-11-25 20:36:17,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-25 20:36:17,858 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:17,858 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-11-25 20:36:17,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 20:36:18,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:18,079 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:36:18,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:18,080 INFO L85 PathProgramCache]: Analyzing trace with hash -173287225, now seen corresponding path program 1 times [2021-11-25 20:36:18,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:18,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379033039] [2021-11-25 20:36:18,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:18,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:18,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:18,278 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:18,278 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:18,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379033039] [2021-11-25 20:36:18,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379033039] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:36:18,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870511345] [2021-11-25 20:36:18,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:18,279 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:18,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:36:18,280 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:36:18,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:36:18,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:18,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-25 20:36:18,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:36:18,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:36:18,576 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:36:18,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-25 20:36:18,587 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:18,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:36:18,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870511345] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:36:18,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [645998729] [2021-11-25 20:36:18,677 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2021-11-25 20:36:18,677 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:36:18,678 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:36:18,678 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:36:18,678 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:36:18,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:18,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:18,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:36:18,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:18,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:18,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:36:18,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:36:18,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:36:18,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:18,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:36:18,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:18,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:18,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:36:18,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:36:18,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:18,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:36:18,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:18,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:18,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:18,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:36:18,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:18,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:18,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:18,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:18,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:36:18,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:18,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:18,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:36:18,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:18,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:18,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:36:18,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:18,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:18,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:36:19,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:36:19,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:36:19,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:36:19,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:19,106 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:19,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:36:19,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:19,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:36:19,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:19,139 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:19,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:36:19,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:19,210 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:36:19,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:36:19,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:19,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:36:19,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:19,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:36:19,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:36:19,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:19,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:36:19,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:19,348 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:36:19,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:36:19,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:36:19,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:19,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:36:19,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:36:19,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:19,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:19,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:36:19,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:36:19,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:19,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:36:19,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:19,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:36:19,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:19,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:19,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:36:19,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:36:19,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-25 20:36:19,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:36:19,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:36:19,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:36:19,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:36:19,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:36:19,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:36:19,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-25 20:36:19,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:19,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:36:19,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:36:19,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:19,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:36:19,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:19,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:20,107 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:36:20,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 195 treesize of output 241 [2021-11-25 20:36:20,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:36:20,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:20,303 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:20,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 33 [2021-11-25 20:36:20,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:36:22,206 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 93 for LOIs [2021-11-25 20:36:23,692 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:36:33,154 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1630#(and (= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (= |ULTIMATE.start_dll_create_~head~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (= (select (select |#memory_int| |ULTIMATE.start_dll_create_~new_head~0#1.base|) |ULTIMATE.start_dll_create_~new_head~0#1.offset|) |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (not (= |ULTIMATE.start_dll_create_~head~0#1.base| 0)) (not (= (select |#valid| |ULTIMATE.start_dll_create_~head~0#1.base|) 1)) (= (select |#valid| |ULTIMATE.start_dll_create_~new_head~0#1.base|) 1) (<= |ULTIMATE.start_dll_create_~len#1| 2) (<= (+ |ULTIMATE.start_dll_create_~new_head~0#1.offset| 8) (select |#length| |ULTIMATE.start_dll_create_~new_head~0#1.base|)) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) |ULTIMATE.start_dll_create_~head~0#1.offset|))' at error location [2021-11-25 20:36:33,154 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:36:33,154 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:36:33,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 11 [2021-11-25 20:36:33,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568971621] [2021-11-25 20:36:33,155 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 20:36:33,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 20:36:33,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:33,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 20:36:33,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2021-11-25 20:36:33,158 INFO L87 Difference]: Start difference. First operand 91 states and 101 transitions. Second operand has 12 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-25 20:36:33,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:33,546 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2021-11-25 20:36:33,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 20:36:33,546 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2021-11-25 20:36:33,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:33,548 INFO L225 Difference]: With dead ends: 90 [2021-11-25 20:36:33,548 INFO L226 Difference]: Without dead ends: 90 [2021-11-25 20:36:33,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=127, Invalid=803, Unknown=0, NotChecked=0, Total=930 [2021-11-25 20:36:33,550 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 10 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 59 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:33,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 392 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 351 Invalid, 0 Unknown, 59 Unchecked, 0.3s Time] [2021-11-25 20:36:33,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-25 20:36:33,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-11-25 20:36:33,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 50 states have (on average 1.88) internal successors, (94), 85 states have internal predecessors, (94), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:36:33,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 100 transitions. [2021-11-25 20:36:33,557 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 100 transitions. Word has length 27 [2021-11-25 20:36:33,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:33,557 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 100 transitions. [2021-11-25 20:36:33,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-25 20:36:33,558 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 100 transitions. [2021-11-25 20:36:33,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-25 20:36:33,559 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:33,559 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-11-25 20:36:33,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 20:36:33,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:33,775 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:36:33,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:33,776 INFO L85 PathProgramCache]: Analyzing trace with hash -173287224, now seen corresponding path program 1 times [2021-11-25 20:36:33,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:33,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027627358] [2021-11-25 20:36:33,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:33,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:34,106 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:34,107 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:34,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027627358] [2021-11-25 20:36:34,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027627358] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:36:34,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918615991] [2021-11-25 20:36:34,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:34,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:34,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:36:34,109 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:36:34,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 20:36:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:34,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-25 20:36:34,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:36:34,545 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:36:34,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:36:34,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2021-11-25 20:36:34,625 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:34,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:36:34,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918615991] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:36:34,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1259085101] [2021-11-25 20:36:34,774 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2021-11-25 20:36:34,774 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:36:34,775 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:36:34,775 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:36:34,775 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:36:34,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:34,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:34,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:36:34,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:34,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:34,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:36:34,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:36:34,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:36:34,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:34,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:34,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:36:34,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:34,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:36:34,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:34,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:36:34,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:36:34,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:34,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:34,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:34,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:36:34,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:34,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:34,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:34,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:34,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:36:35,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:36:35,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:36:35,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:36:35,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:36:35,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:36:35,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:36:35,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,231 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:35,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:36:35,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:36:35,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,262 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:35,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:36:35,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,336 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:36:35,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:36:35,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:36:35,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:36:35,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:36:35,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:36:35,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:35,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,493 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:36:35,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:36:35,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:36:35,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:35,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:36:35,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:36:35,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:36:35,780 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:35,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 259 [2021-11-25 20:36:35,794 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:35,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,797 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:35,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 250 [2021-11-25 20:36:35,814 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:35,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,818 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:35,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 254 [2021-11-25 20:36:35,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:36:35,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 248 [2021-11-25 20:36:35,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:35,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 255 treesize of output 236 [2021-11-25 20:36:36,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:36,079 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:36:36,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:36:36,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:36,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:36:36,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:36,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:36:36,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:36,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:36:36,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:36:36,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:36,225 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:36:36,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:36:36,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:36:36,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:36,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:36:36,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:36,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:36:36,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:36,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:36:36,470 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:36,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 259 [2021-11-25 20:36:36,506 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:36,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:36,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:36,510 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:36,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:36,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 250 [2021-11-25 20:36:36,528 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:36,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:36,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:36,531 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:36,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:36,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 254 [2021-11-25 20:36:36,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:36,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 248 [2021-11-25 20:36:36,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:36,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 255 treesize of output 236 [2021-11-25 20:36:36,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:36,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:36:37,030 INFO L354 Elim1Store]: treesize reduction 62, result has 24.4 percent of original size [2021-11-25 20:36:37,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 263 treesize of output 269 [2021-11-25 20:36:37,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:37,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-11-25 20:36:37,179 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 86 for LOIs [2021-11-25 20:36:37,499 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:36:48,291 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1951#(and (< |#StackHeapBarrier| |ULTIMATE.start_main_~#s~0#1.base|) (= |ULTIMATE.start_dll_create_~head~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (= (select (select |#memory_int| |ULTIMATE.start_dll_create_~new_head~0#1.base|) |ULTIMATE.start_dll_create_~new_head~0#1.offset|) |ULTIMATE.start_dll_create_~data#1|) (not (= |ULTIMATE.start_dll_create_~head~0#1.base| 0)) (= |ULTIMATE.start_dll_create_#in~data#1| |ULTIMATE.start_dll_create_~data#1|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |ULTIMATE.start_dll_create_~new_head~0#1.offset| 8)) 0) (= (select |#valid| |ULTIMATE.start_dll_create_~new_head~0#1.base|) 1) (= (select |ULTIMATE.start_main_old_#valid#1| 1) 1) (= (select |ULTIMATE.start_main_old_#valid#1| 2) 1) (< |ULTIMATE.start_dll_create_~new_head~0#1.base| |#StackHeapBarrier|) (= (select |#length| |ULTIMATE.start_dll_create_~new_head~0#1.base|) 12) (= |ULTIMATE.start_dll_create_#in~len#1| (+ |ULTIMATE.start_dll_create_~len#1| 1)) (<= 1 |ULTIMATE.start_dll_create_~len#1|) (< |ULTIMATE.start_dll_create_~head~0#1.base| |#StackHeapBarrier|) (= (select |ULTIMATE.start_main_old_#valid#1| 0) 0) (= |ULTIMATE.start_main_~data~0#1| 1) (= (select |ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_main_~#s~0#1.base|) 0) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (< (select |#length| |ULTIMATE.start_dll_create_~head~0#1.base|) (+ |ULTIMATE.start_dll_create_~head~0#1.offset| 12)) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (not (= |ULTIMATE.start_dll_create_~new_head~0#1.base| 0)) (= |#NULL.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |ULTIMATE.start_dll_create_~new_head~0#1.offset| 8)) 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_dll_create_~new_head~0#1.offset|) (<= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) |ULTIMATE.start_dll_create_~head~0#1.offset|))' at error location [2021-11-25 20:36:48,291 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:36:48,292 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:36:48,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 17 [2021-11-25 20:36:48,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891605818] [2021-11-25 20:36:48,292 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 20:36:48,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-25 20:36:48,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:48,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-25 20:36:48,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=874, Unknown=0, NotChecked=0, Total=992 [2021-11-25 20:36:48,294 INFO L87 Difference]: Start difference. First operand 90 states and 100 transitions. Second operand has 18 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-25 20:36:49,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:49,081 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2021-11-25 20:36:49,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 20:36:49,081 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 27 [2021-11-25 20:36:49,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:49,083 INFO L225 Difference]: With dead ends: 90 [2021-11-25 20:36:49,083 INFO L226 Difference]: Without dead ends: 90 [2021-11-25 20:36:49,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 35 SyntacticMatches, 6 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=172, Invalid=1234, Unknown=0, NotChecked=0, Total=1406 [2021-11-25 20:36:49,085 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 169 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:49,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 477 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 20:36:49,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-25 20:36:49,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 89. [2021-11-25 20:36:49,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 50 states have (on average 1.86) internal successors, (93), 84 states have internal predecessors, (93), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:36:49,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 99 transitions. [2021-11-25 20:36:49,092 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 99 transitions. Word has length 27 [2021-11-25 20:36:49,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:49,092 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 99 transitions. [2021-11-25 20:36:49,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-25 20:36:49,093 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 99 transitions. [2021-11-25 20:36:49,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-25 20:36:49,094 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:49,094 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-11-25 20:36:49,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 20:36:49,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:49,311 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:36:49,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:49,312 INFO L85 PathProgramCache]: Analyzing trace with hash -998620227, now seen corresponding path program 2 times [2021-11-25 20:36:49,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:49,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695927905] [2021-11-25 20:36:49,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:49,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:49,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:49,401 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-25 20:36:49,402 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:49,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695927905] [2021-11-25 20:36:49,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695927905] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:36:49,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405639691] [2021-11-25 20:36:49,403 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 20:36:49,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:49,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:36:49,407 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:36:49,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 20:36:49,723 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 20:36:49,724 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:36:49,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-25 20:36:49,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:36:49,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 20:36:49,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 20:36:49,883 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:36:49,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:36:49,939 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:49,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:36:50,123 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 20:36:50,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405639691] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:36:50,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1439914207] [2021-11-25 20:36:50,126 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2021-11-25 20:36:50,127 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:36:50,127 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:36:50,127 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:36:50,128 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:36:50,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:36:50,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:36:50,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:36:50,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:36:50,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:50,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:36:50,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:50,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:36:50,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:36:50,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:36:50,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:36:50,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:36:50,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:50,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:36:50,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:36:50,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:36:50,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:36:50,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:36:50,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:36:50,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:36:50,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,500 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:50,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:36:50,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,510 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:50,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:36:50,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,573 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:36:50,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:36:50,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:36:50,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:36:50,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:50,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:36:50,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:36:50,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,706 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:36:50,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:36:50,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:50,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:36:50,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:36:50,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:36:50,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:36:50,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:50,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:36:50,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:36:50,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:50,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:50,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:36:50,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:51,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:36:51,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:36:51,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-25 20:36:51,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:36:51,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:36:51,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:36:51,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:36:51,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:36:51,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:36:51,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-25 20:36:51,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:36:51,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:51,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:36:51,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:51,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:51,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:51,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:36:51,425 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:36:51,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 178 treesize of output 224 [2021-11-25 20:36:51,975 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:51,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 442 treesize of output 456 [2021-11-25 20:36:53,502 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:53,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 162 treesize of output 195 [2021-11-25 20:36:53,521 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:53,534 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:53,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 154 treesize of output 151 [2021-11-25 20:36:53,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:53,562 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:53,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 150 treesize of output 140 [2021-11-25 20:36:53,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:53,599 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:53,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 144 treesize of output 134 [2021-11-25 20:36:53,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:36:54,006 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:36:54,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 178 treesize of output 224 [2021-11-25 20:36:54,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:54,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:54,126 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:54,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 22 [2021-11-25 20:36:54,655 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:54,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 162 treesize of output 195 [2021-11-25 20:36:54,688 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:54,701 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:54,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 154 treesize of output 151 [2021-11-25 20:36:54,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:54,729 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:54,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 150 treesize of output 140 [2021-11-25 20:36:54,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:54,758 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:54,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 144 treesize of output 134 [2021-11-25 20:36:54,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:36:55,350 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:36:55,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 178 treesize of output 224 [2021-11-25 20:36:55,502 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:55,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 34 [2021-11-25 20:36:55,716 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:36:55,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 189 treesize of output 235 [2021-11-25 20:36:55,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:36:55,883 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:55,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 45 [2021-11-25 20:36:56,157 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 1 for LOIs [2021-11-25 20:36:56,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:36:56,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:36:56,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:36:56,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:56,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:56,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:36:56,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:56,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:36:56,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:56,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:36:56,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:56,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:56,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:56,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:36:56,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:56,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:56,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:56,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:36:56,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:56,256 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:36:58,702 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2383#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (not (= (select |#valid| |ULTIMATE.start_dll_append_~head#1.base|) 1)) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_dll_create_~new_head~0#1.offset|) (<= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= |#NULL.base| 0))' at error location [2021-11-25 20:36:58,702 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:36:58,703 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:36:58,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 12 [2021-11-25 20:36:58,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91611335] [2021-11-25 20:36:58,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:36:58,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 20:36:58,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:58,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 20:36:58,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=620, Unknown=0, NotChecked=0, Total=702 [2021-11-25 20:36:58,705 INFO L87 Difference]: Start difference. First operand 89 states and 99 transitions. Second operand has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 10 states have internal predecessors, (49), 5 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2021-11-25 20:36:59,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:59,080 INFO L93 Difference]: Finished difference Result 95 states and 103 transitions. [2021-11-25 20:36:59,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 20:36:59,080 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 10 states have internal predecessors, (49), 5 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 37 [2021-11-25 20:36:59,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:59,081 INFO L225 Difference]: With dead ends: 95 [2021-11-25 20:36:59,082 INFO L226 Difference]: Without dead ends: 95 [2021-11-25 20:36:59,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 90 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=161, Invalid=1321, Unknown=0, NotChecked=0, Total=1482 [2021-11-25 20:36:59,084 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 224 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 57 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:59,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 257 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 235 Invalid, 0 Unknown, 57 Unchecked, 0.2s Time] [2021-11-25 20:36:59,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-25 20:36:59,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-11-25 20:36:59,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 55 states have (on average 1.7636363636363637) internal successors, (97), 89 states have internal predecessors, (97), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:36:59,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 103 transitions. [2021-11-25 20:36:59,090 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 103 transitions. Word has length 37 [2021-11-25 20:36:59,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:59,090 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 103 transitions. [2021-11-25 20:36:59,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 10 states have internal predecessors, (49), 5 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2021-11-25 20:36:59,097 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 103 transitions. [2021-11-25 20:36:59,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-25 20:36:59,100 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:59,101 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:36:59,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 20:36:59,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-25 20:36:59,319 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:36:59,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:59,320 INFO L85 PathProgramCache]: Analyzing trace with hash -78573971, now seen corresponding path program 1 times [2021-11-25 20:36:59,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:59,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802984978] [2021-11-25 20:36:59,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:59,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:59,666 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 20:36:59,667 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:59,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802984978] [2021-11-25 20:36:59,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802984978] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:36:59,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027725644] [2021-11-25 20:36:59,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:59,667 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:59,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:36:59,668 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:36:59,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 20:36:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:59,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-25 20:36:59,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:36:59,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:36:59,948 INFO L354 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2021-11-25 20:36:59,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2021-11-25 20:37:00,098 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:37:00,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 20:37:00,187 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:37:00,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 20:37:00,204 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-25 20:37:00,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:37:00,694 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-25 20:37:00,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027725644] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-25 20:37:00,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:37:00,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 8] total 20 [2021-11-25 20:37:00,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534201163] [2021-11-25 20:37:00,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:37:00,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 20:37:00,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:37:00,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 20:37:00,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2021-11-25 20:37:00,698 INFO L87 Difference]: Start difference. First operand 95 states and 103 transitions. Second operand has 9 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-25 20:37:00,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:37:00,809 INFO L93 Difference]: Finished difference Result 101 states and 110 transitions. [2021-11-25 20:37:00,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:37:00,810 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2021-11-25 20:37:00,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:37:00,811 INFO L225 Difference]: With dead ends: 101 [2021-11-25 20:37:00,811 INFO L226 Difference]: Without dead ends: 101 [2021-11-25 20:37:00,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 58 SyntacticMatches, 11 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2021-11-25 20:37:00,812 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 155 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 98 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:37:00,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 164 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 98 Invalid, 0 Unknown, 98 Unchecked, 0.1s Time] [2021-11-25 20:37:00,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-11-25 20:37:00,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 91. [2021-11-25 20:37:00,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 55 states have (on average 1.690909090909091) internal successors, (93), 85 states have internal predecessors, (93), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:37:00,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 99 transitions. [2021-11-25 20:37:00,817 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 99 transitions. Word has length 38 [2021-11-25 20:37:00,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:37:00,817 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 99 transitions. [2021-11-25 20:37:00,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-25 20:37:00,818 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 99 transitions. [2021-11-25 20:37:00,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-25 20:37:00,819 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:37:00,823 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:37:00,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 20:37:01,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-25 20:37:01,024 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:37:01,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:37:01,024 INFO L85 PathProgramCache]: Analyzing trace with hash -78573970, now seen corresponding path program 1 times [2021-11-25 20:37:01,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:37:01,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328132201] [2021-11-25 20:37:01,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:01,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:37:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:01,367 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-25 20:37:01,368 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:37:01,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328132201] [2021-11-25 20:37:01,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328132201] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:37:01,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071873218] [2021-11-25 20:37:01,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:01,368 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:01,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:37:01,369 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:37:01,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 20:37:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:01,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-25 20:37:01,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:37:01,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:37:01,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:37:01,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:37:01,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:37:02,015 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-25 20:37:02,015 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:37:02,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071873218] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:37:02,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:37:02,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 10 [2021-11-25 20:37:02,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138986392] [2021-11-25 20:37:02,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:37:02,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 20:37:02,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:37:02,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 20:37:02,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-25 20:37:02,017 INFO L87 Difference]: Start difference. First operand 91 states and 99 transitions. Second operand has 7 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:37:02,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:37:02,196 INFO L93 Difference]: Finished difference Result 86 states and 94 transitions. [2021-11-25 20:37:02,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:37:02,197 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2021-11-25 20:37:02,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:37:02,198 INFO L225 Difference]: With dead ends: 86 [2021-11-25 20:37:02,198 INFO L226 Difference]: Without dead ends: 86 [2021-11-25 20:37:02,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-11-25 20:37:02,200 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 122 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:37:02,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 94 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:37:02,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-25 20:37:02,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2021-11-25 20:37:02,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 55 states have (on average 1.6) internal successors, (88), 80 states have internal predecessors, (88), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:37:02,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2021-11-25 20:37:02,205 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 38 [2021-11-25 20:37:02,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:37:02,206 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2021-11-25 20:37:02,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:37:02,206 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2021-11-25 20:37:02,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-25 20:37:02,208 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:37:02,208 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:37:02,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-25 20:37:02,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:02,423 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:37:02,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:37:02,424 INFO L85 PathProgramCache]: Analyzing trace with hash -39971425, now seen corresponding path program 1 times [2021-11-25 20:37:02,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:37:02,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348009212] [2021-11-25 20:37:02,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:02,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:37:02,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:02,880 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 20:37:02,880 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:37:02,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348009212] [2021-11-25 20:37:02,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348009212] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:37:02,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127679568] [2021-11-25 20:37:02,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:02,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:02,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:37:02,882 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:37:02,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 20:37:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:03,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-25 20:37:03,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:37:03,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2021-11-25 20:37:04,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-11-25 20:37:04,450 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-25 20:37:04,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 13 [2021-11-25 20:37:04,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-11-25 20:37:04,573 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-25 20:37:04,574 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:37:04,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127679568] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:37:04,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:37:04,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14] total 21 [2021-11-25 20:37:04,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128447605] [2021-11-25 20:37:04,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:37:04,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 20:37:04,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:37:04,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 20:37:04,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=395, Unknown=2, NotChecked=0, Total=462 [2021-11-25 20:37:04,577 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand has 12 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:37:04,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:37:04,952 INFO L93 Difference]: Finished difference Result 122 states and 135 transitions. [2021-11-25 20:37:04,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 20:37:04,953 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2021-11-25 20:37:04,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:37:04,954 INFO L225 Difference]: With dead ends: 122 [2021-11-25 20:37:04,954 INFO L226 Difference]: Without dead ends: 122 [2021-11-25 20:37:04,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=99, Invalid=499, Unknown=2, NotChecked=0, Total=600 [2021-11-25 20:37:04,956 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 69 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 134 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:37:04,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 442 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 345 Invalid, 0 Unknown, 134 Unchecked, 0.3s Time] [2021-11-25 20:37:04,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-25 20:37:04,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 85. [2021-11-25 20:37:04,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 56 states have (on average 1.5714285714285714) internal successors, (88), 79 states have internal predecessors, (88), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:37:04,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2021-11-25 20:37:04,961 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 41 [2021-11-25 20:37:04,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:37:04,961 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2021-11-25 20:37:04,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:37:04,961 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2021-11-25 20:37:04,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-25 20:37:04,963 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:37:04,968 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:37:05,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-25 20:37:05,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-25 20:37:05,187 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:37:05,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:37:05,188 INFO L85 PathProgramCache]: Analyzing trace with hash -39971424, now seen corresponding path program 1 times [2021-11-25 20:37:05,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:37:05,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851340383] [2021-11-25 20:37:05,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:05,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:37:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:06,025 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 20:37:06,025 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:37:06,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851340383] [2021-11-25 20:37:06,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851340383] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:37:06,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40974792] [2021-11-25 20:37:06,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:06,025 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:06,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:37:06,026 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:37:06,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-25 20:37:06,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:06,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 63 conjunts are in the unsatisfiable core [2021-11-25 20:37:06,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:37:06,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2021-11-25 20:37:06,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:37:17,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:17,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-11-25 20:37:17,047 INFO L354 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2021-11-25 20:37:17,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 26 [2021-11-25 20:37:17,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:17,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:37:19,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-11-25 20:37:19,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 20:37:21,283 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 20:37:21,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:37:23,529 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_node_create_~temp~0#1.base_54| Int) (v_ArrVal_1439 Int)) (or (and (forall ((v_ArrVal_1437 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$.offset| |v_node_create_~temp~0#1.base_54| v_ArrVal_1437) |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (forall ((v_ArrVal_1438 (Array Int Int)) (v_ArrVal_1437 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| |v_node_create_~temp~0#1.base_54| v_ArrVal_1437) |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 8) (select (store |c_#length| |v_node_create_~temp~0#1.base_54| v_ArrVal_1439) (select (select (store |c_#memory_$Pointer$.base| |v_node_create_~temp~0#1.base_54| v_ArrVal_1438) |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|))))) (<= |c_#StackHeapBarrier| |v_node_create_~temp~0#1.base_54|) (< v_ArrVal_1439 12))) is different from false [2021-11-25 20:37:23,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40974792] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:37:23,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1208123414] [2021-11-25 20:37:23,533 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2021-11-25 20:37:23,533 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:37:23,534 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:37:23,534 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:37:23,534 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:37:23,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:23,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:23,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:37:23,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:23,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:23,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:37:23,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:37:23,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:37:23,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:37:23,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:37:23,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:37:23,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:37:23,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:23,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:37:23,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:23,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:37:23,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:23,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:23,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:23,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:37:23,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:37:23,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:23,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:23,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:23,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:37:23,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:23,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:23,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:37:23,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:23,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:23,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:37:23,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:23,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:23,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:37:23,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:37:23,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:37:23,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:37:23,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:23,882 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:23,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:37:23,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:23,895 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:23,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:37:23,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:23,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:37:23,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:23,958 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:37:23,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:37:23,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:37:24,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:37:24,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:37:24,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:37:24,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:37:24,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,061 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:37:24,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:37:24,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:37:24,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:37:24,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:37:24,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:37:24,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:37:24,203 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:24,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2021-11-25 20:37:24,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:37:24,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:37:24,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,280 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:24,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 231 [2021-11-25 20:37:24,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,289 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:24,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 223 [2021-11-25 20:37:24,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:37:24,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,416 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:37:24,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:37:24,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:37:24,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:37:24,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:37:24,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:37:24,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:37:24,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,526 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:37:24,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:37:24,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:37:24,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:37:24,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:37:24,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:37:24,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:37:24,678 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:24,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2021-11-25 20:37:24,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:37:24,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:37:24,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:37:24,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,799 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:24,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 231 [2021-11-25 20:37:24,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,809 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:24,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 223 [2021-11-25 20:37:24,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:37:24,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,900 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:24,910 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:37:24,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 225 treesize of output 223 [2021-11-25 20:37:24,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,920 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:24,932 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 20:37:24,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 225 treesize of output 227 [2021-11-25 20:37:25,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,072 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:25,081 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:37:25,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 225 treesize of output 223 [2021-11-25 20:37:25,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,091 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:25,103 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 20:37:25,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 225 treesize of output 227 [2021-11-25 20:37:25,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:37:25,312 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:25,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2021-11-25 20:37:25,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:37:25,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:37:25,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:37:25,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,435 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:25,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 231 [2021-11-25 20:37:25,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,448 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:25,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 223 [2021-11-25 20:37:25,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:37:25,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:37:25,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:37:25,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:37:26,123 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 49 for LOIs [2021-11-25 20:37:26,458 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:37:35,323 WARN L227 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 93 DAG size of output: 79 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 20:37:41,601 WARN L227 SmtUtils]: Spent 6.11s on a formula simplification. DAG size of input: 105 DAG size of output: 91 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 20:37:59,393 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3873#(and (= |ULTIMATE.start_dll_append_~data#1| (select (select |#memory_int| |ULTIMATE.start_dll_append_~new_last~0#1.base|) 0)) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (or (< (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4) 0) (< (select |#length| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 8))) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (= |ULTIMATE.start_dll_create_~head~0#1.offset| |ULTIMATE.start_dll_create_#res#1.offset|) (<= (+ |ULTIMATE.start_dll_append_~head#1.offset| 4) (select |#length| |ULTIMATE.start_dll_append_~head#1.base|)) (= (select |#length| |ULTIMATE.start_dll_append_~new_last~0#1.base|) 12) (< |ULTIMATE.start_dll_append_~new_last~0#1.base| |#StackHeapBarrier|) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~head#1.base|) |ULTIMATE.start_dll_append_~head#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~head#1.base|) |ULTIMATE.start_dll_append_~head#1.offset|) 0))) (= |ULTIMATE.start_dll_append_#in~head#1.base| |ULTIMATE.start_main_~#s~0#1.base|) (= (select |#valid| |ULTIMATE.start_dll_append_~new_last~0#1.base|) 1) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (not (= |ULTIMATE.start_dll_append_~new_last~0#1.base| 0)) (= |ULTIMATE.start_main_~uneq~0#1| |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_create_~head~0#1.base| |ULTIMATE.start_dll_create_#res#1.base|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|) 4) 0) (= |ULTIMATE.start_dll_append_#in~head#1.offset| |ULTIMATE.start_main_~#s~0#1.offset|) (= |ULTIMATE.start_dll_append_~last~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~head#1.base|) |ULTIMATE.start_dll_append_~head#1.offset|)) (= |ULTIMATE.start_dll_append_~last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~head#1.base|) |ULTIMATE.start_dll_append_~head#1.offset|)) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |ULTIMATE.start_dll_append_#in~data#1| |ULTIMATE.start_dll_append_~data#1|) (= |ULTIMATE.start_dll_append_#in~head#1.offset| |ULTIMATE.start_dll_append_~head#1.offset|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (= (select |#valid| |ULTIMATE.start_dll_append_~head#1.base|) 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= |ULTIMATE.start_dll_append_~head#1.base| |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|) 8) 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~new_last~0#1.base|) 4) 0) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~new_last~0#1.base|) 8) 0) (= |#NULL.base| 0))' at error location [2021-11-25 20:37:59,393 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:37:59,393 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:37:59,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16] total 28 [2021-11-25 20:37:59,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096811603] [2021-11-25 20:37:59,394 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 20:37:59,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-25 20:37:59,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:37:59,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-25 20:37:59,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=2216, Unknown=26, NotChecked=96, Total=2550 [2021-11-25 20:37:59,396 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand has 29 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 26 states have internal predecessors, (63), 4 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-25 20:38:07,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:38:07,963 INFO L93 Difference]: Finished difference Result 129 states and 142 transitions. [2021-11-25 20:38:07,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 20:38:07,965 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 26 states have internal predecessors, (63), 4 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 41 [2021-11-25 20:38:07,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:38:07,966 INFO L225 Difference]: With dead ends: 129 [2021-11-25 20:38:07,966 INFO L226 Difference]: Without dead ends: 129 [2021-11-25 20:38:07,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 942 ImplicationChecksByTransitivity, 57.9s TimeCoverageRelationStatistics Valid=309, Invalid=3084, Unknown=33, NotChecked=114, Total=3540 [2021-11-25 20:38:07,969 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 67 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 303 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:38:07,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 1079 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 604 Invalid, 0 Unknown, 303 Unchecked, 0.7s Time] [2021-11-25 20:38:07,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-25 20:38:07,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 88. [2021-11-25 20:38:07,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 59 states have (on average 1.5423728813559323) internal successors, (91), 82 states have internal predecessors, (91), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:38:07,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 97 transitions. [2021-11-25 20:38:07,974 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 97 transitions. Word has length 41 [2021-11-25 20:38:07,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:38:07,975 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 97 transitions. [2021-11-25 20:38:07,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 26 states have internal predecessors, (63), 4 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-25 20:38:07,975 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 97 transitions. [2021-11-25 20:38:07,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-25 20:38:07,977 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:38:07,977 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:38:08,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-25 20:38:08,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-25 20:38:08,196 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:38:08,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:38:08,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1239403665, now seen corresponding path program 1 times [2021-11-25 20:38:08,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:38:08,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592028520] [2021-11-25 20:38:08,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:38:08,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:38:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:38:08,350 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-25 20:38:08,351 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:38:08,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592028520] [2021-11-25 20:38:08,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592028520] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:38:08,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:38:08,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:38:08,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359950951] [2021-11-25 20:38:08,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:38:08,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:38:08,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:38:08,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:38:08,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:38:08,354 INFO L87 Difference]: Start difference. First operand 88 states and 97 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:38:08,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:38:08,430 INFO L93 Difference]: Finished difference Result 97 states and 107 transitions. [2021-11-25 20:38:08,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:38:08,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2021-11-25 20:38:08,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:38:08,431 INFO L225 Difference]: With dead ends: 97 [2021-11-25 20:38:08,431 INFO L226 Difference]: Without dead ends: 97 [2021-11-25 20:38:08,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:38:08,432 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 120 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:38:08,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 88 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:38:08,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-11-25 20:38:08,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 87. [2021-11-25 20:38:08,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 59 states have (on average 1.5254237288135593) internal successors, (90), 81 states have internal predecessors, (90), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:38:08,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 96 transitions. [2021-11-25 20:38:08,438 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 96 transitions. Word has length 42 [2021-11-25 20:38:08,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:38:08,438 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 96 transitions. [2021-11-25 20:38:08,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:38:08,439 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 96 transitions. [2021-11-25 20:38:08,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-25 20:38:08,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:38:08,440 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:38:08,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-25 20:38:08,441 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:38:08,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:38:08,441 INFO L85 PathProgramCache]: Analyzing trace with hash 233195575, now seen corresponding path program 1 times [2021-11-25 20:38:08,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:38:08,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170093343] [2021-11-25 20:38:08,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:38:08,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:38:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:38:08,585 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-25 20:38:08,585 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:38:08,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170093343] [2021-11-25 20:38:08,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170093343] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:38:08,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:38:08,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 20:38:08,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652897804] [2021-11-25 20:38:08,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:38:08,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 20:38:08,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:38:08,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 20:38:08,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:38:08,588 INFO L87 Difference]: Start difference. First operand 87 states and 96 transitions. Second operand has 9 states, 6 states have (on average 4.166666666666667) internal successors, (25), 8 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:38:08,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:38:08,821 INFO L93 Difference]: Finished difference Result 128 states and 143 transitions. [2021-11-25 20:38:08,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 20:38:08,822 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 6 states have (on average 4.166666666666667) internal successors, (25), 8 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2021-11-25 20:38:08,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:38:08,823 INFO L225 Difference]: With dead ends: 128 [2021-11-25 20:38:08,823 INFO L226 Difference]: Without dead ends: 128 [2021-11-25 20:38:08,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-11-25 20:38:08,824 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 276 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:38:08,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 201 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:38:08,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-25 20:38:08,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 87. [2021-11-25 20:38:08,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 63 states have (on average 1.4603174603174602) internal successors, (92), 81 states have internal predecessors, (92), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:38:08,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 98 transitions. [2021-11-25 20:38:08,831 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 98 transitions. Word has length 43 [2021-11-25 20:38:08,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:38:08,832 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 98 transitions. [2021-11-25 20:38:08,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 6 states have (on average 4.166666666666667) internal successors, (25), 8 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:38:08,832 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 98 transitions. [2021-11-25 20:38:08,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-25 20:38:08,833 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:38:08,834 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:38:08,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-25 20:38:08,834 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:38:08,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:38:08,835 INFO L85 PathProgramCache]: Analyzing trace with hash 233195576, now seen corresponding path program 1 times [2021-11-25 20:38:08,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:38:08,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754748635] [2021-11-25 20:38:08,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:38:08,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:38:08,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:38:09,022 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-25 20:38:09,022 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:38:09,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754748635] [2021-11-25 20:38:09,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754748635] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:38:09,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:38:09,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 20:38:09,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062212337] [2021-11-25 20:38:09,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:38:09,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 20:38:09,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:38:09,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 20:38:09,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:38:09,024 INFO L87 Difference]: Start difference. First operand 87 states and 98 transitions. Second operand has 9 states, 6 states have (on average 4.5) internal successors, (27), 8 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:38:09,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:38:09,331 INFO L93 Difference]: Finished difference Result 136 states and 154 transitions. [2021-11-25 20:38:09,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 20:38:09,332 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 6 states have (on average 4.5) internal successors, (27), 8 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2021-11-25 20:38:09,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:38:09,333 INFO L225 Difference]: With dead ends: 136 [2021-11-25 20:38:09,334 INFO L226 Difference]: Without dead ends: 136 [2021-11-25 20:38:09,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-11-25 20:38:09,335 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 164 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:38:09,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 252 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:38:09,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-11-25 20:38:09,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 93. [2021-11-25 20:38:09,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 70 states have (on average 1.4285714285714286) internal successors, (100), 87 states have internal predecessors, (100), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:38:09,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 106 transitions. [2021-11-25 20:38:09,340 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 106 transitions. Word has length 43 [2021-11-25 20:38:09,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:38:09,341 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 106 transitions. [2021-11-25 20:38:09,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 6 states have (on average 4.5) internal successors, (27), 8 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:38:09,341 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 106 transitions. [2021-11-25 20:38:09,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-25 20:38:09,342 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:38:09,342 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:38:09,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-25 20:38:09,343 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:38:09,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:38:09,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1082743367, now seen corresponding path program 1 times [2021-11-25 20:38:09,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:38:09,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064743117] [2021-11-25 20:38:09,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:38:09,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:38:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:38:10,709 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 21 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:38:10,710 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:38:10,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064743117] [2021-11-25 20:38:10,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064743117] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:38:10,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660572234] [2021-11-25 20:38:10,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:38:10,710 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:38:10,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:38:10,711 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:38:10,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-25 20:38:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:38:10,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 85 conjunts are in the unsatisfiable core [2021-11-25 20:38:10,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:38:11,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:38:11,322 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:38:11,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-25 20:38:11,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:38:11,578 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:38:11,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 35 [2021-11-25 20:38:11,781 INFO L354 Elim1Store]: treesize reduction 3, result has 83.3 percent of original size [2021-11-25 20:38:11,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 33 [2021-11-25 20:38:11,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-25 20:38:11,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:38:12,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:12,181 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:38:12,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 55 [2021-11-25 20:38:12,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:12,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 48 [2021-11-25 20:38:12,232 INFO L354 Elim1Store]: treesize reduction 94, result has 36.9 percent of original size [2021-11-25 20:38:12,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 42 treesize of output 64 [2021-11-25 20:38:12,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2021-11-25 20:38:12,457 INFO L354 Elim1Store]: treesize reduction 3, result has 78.6 percent of original size [2021-11-25 20:38:12,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 32 [2021-11-25 20:38:12,522 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:38:12,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:38:12,714 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1942 (Array Int Int)) (v_ArrVal_1941 (Array Int Int)) (|v_node_create_~temp~0#1.base_57| Int) (v_ArrVal_1940 Int)) (or (= (select (store |c_#valid| |v_node_create_~temp~0#1.base_57| v_ArrVal_1940) (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |v_node_create_~temp~0#1.base_57| v_ArrVal_1942))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|))) (+ (select (select (store |c_#memory_$Pointer$.offset| |v_node_create_~temp~0#1.base_57| v_ArrVal_1941) |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) 1) (not (= (select |c_#valid| |v_node_create_~temp~0#1.base_57|) 0)) (<= |c_#StackHeapBarrier| |v_node_create_~temp~0#1.base_57|))) is different from false [2021-11-25 20:38:12,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660572234] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:38:12,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1976947714] [2021-11-25 20:38:12,718 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2021-11-25 20:38:12,718 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:38:12,718 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:38:12,719 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:38:12,719 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:38:12,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:12,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:12,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:38:12,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:12,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:12,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:38:12,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:38:12,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:38:12,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:38:12,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:38:12,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:38:12,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:12,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:38:12,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:12,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:38:12,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:38:12,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:12,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:12,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:12,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:38:12,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:12,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:12,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:12,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:38:12,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:38:12,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:12,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:12,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:38:12,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:12,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:12,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:38:12,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:12,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:12,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:38:13,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:13,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:38:13,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:38:13,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:13,100 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:13,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:38:13,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:13,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:38:13,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:13,124 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:13,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:38:13,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:13,185 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:38:13,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:38:13,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:13,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:38:13,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:13,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:38:13,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:13,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:38:13,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:38:13,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:13,316 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:38:13,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:38:13,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:38:13,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:38:13,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:13,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:38:13,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:13,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:13,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:38:13,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:38:13,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:13,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:13,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:13,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:38:13,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:38:13,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:38:13,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:38:13,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:38:13,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:38:13,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:13,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-25 20:38:13,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:13,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:38:13,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-25 20:38:13,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:38:13,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:38:13,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:38:13,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:13,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:13,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:38:13,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:13,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:38:13,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:38:13,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:13,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:38:13,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:13,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:38:13,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:13,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:38:13,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:13,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:13,946 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:38:13,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 55 [2021-11-25 20:38:13,961 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-25 20:38:13,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 31 [2021-11-25 20:38:13,977 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:38:13,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2021-11-25 20:38:13,990 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:13,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:38:14,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:14,102 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:38:14,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 55 [2021-11-25 20:38:14,116 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-25 20:38:14,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 31 [2021-11-25 20:38:14,133 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:38:14,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2021-11-25 20:38:14,146 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:14,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:38:14,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:14,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:38:14,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:14,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:38:14,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:14,252 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:14,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:38:14,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:14,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:38:14,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:14,272 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:14,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:38:14,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:38:14,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:14,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:38:14,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:14,381 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:14,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:38:14,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:14,411 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:14,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:38:14,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:14,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:38:14,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:14,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:38:14,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:14,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:38:14,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:14,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:38:14,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:14,596 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:38:14,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 55 [2021-11-25 20:38:14,613 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-25 20:38:14,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 31 [2021-11-25 20:38:14,631 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:38:14,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2021-11-25 20:38:14,644 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:14,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:38:14,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:14,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:14,729 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:38:14,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 55 [2021-11-25 20:38:14,743 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-25 20:38:14,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 31 [2021-11-25 20:38:14,758 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:38:14,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2021-11-25 20:38:14,775 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:14,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:38:14,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:14,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:14,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:38:14,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:38:14,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:14,869 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:14,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:38:14,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:14,880 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:14,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:38:14,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:14,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:38:14,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:14,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:38:14,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:14,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:38:15,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:15,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:38:15,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:38:15,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:15,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:15,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:15,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:15,787 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 49 for LOIs [2021-11-25 20:38:16,166 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:38:22,606 WARN L227 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 93 DAG size of output: 79 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 20:38:28,955 WARN L227 SmtUtils]: Spent 6.16s on a formula simplification. DAG size of input: 105 DAG size of output: 91 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 20:38:32,501 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4994#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (not (= (select |#valid| |ULTIMATE.start_dll_append_~last~0#1.base|) 1)) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= |#NULL.base| 0))' at error location [2021-11-25 20:38:32,502 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:38:32,502 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:38:32,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 41 [2021-11-25 20:38:32,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359866485] [2021-11-25 20:38:32,502 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 20:38:32,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-11-25 20:38:32,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:38:32,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-11-25 20:38:32,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=3763, Unknown=3, NotChecked=124, Total=4160 [2021-11-25 20:38:32,505 INFO L87 Difference]: Start difference. First operand 93 states and 106 transitions. Second operand has 42 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 36 states have internal predecessors, (72), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:38:34,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:38:34,336 INFO L93 Difference]: Finished difference Result 137 states and 157 transitions. [2021-11-25 20:38:34,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-25 20:38:34,336 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 36 states have internal predecessors, (72), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 44 [2021-11-25 20:38:34,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:38:34,338 INFO L225 Difference]: With dead ends: 137 [2021-11-25 20:38:34,338 INFO L226 Difference]: Without dead ends: 137 [2021-11-25 20:38:34,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 55 SyntacticMatches, 4 SemanticMatches, 77 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1947 ImplicationChecksByTransitivity, 19.1s TimeCoverageRelationStatistics Valid=481, Invalid=5526, Unknown=3, NotChecked=152, Total=6162 [2021-11-25 20:38:34,341 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 246 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 138 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:38:34,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 943 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 987 Invalid, 0 Unknown, 138 Unchecked, 0.9s Time] [2021-11-25 20:38:34,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-11-25 20:38:34,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 94. [2021-11-25 20:38:34,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 71 states have (on average 1.4366197183098592) internal successors, (102), 88 states have internal predecessors, (102), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:38:34,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 108 transitions. [2021-11-25 20:38:34,348 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 108 transitions. Word has length 44 [2021-11-25 20:38:34,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:38:34,348 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 108 transitions. [2021-11-25 20:38:34,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 36 states have internal predecessors, (72), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:38:34,349 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 108 transitions. [2021-11-25 20:38:34,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-25 20:38:34,350 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:38:34,350 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:38:34,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-25 20:38:34,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-25 20:38:34,563 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:38:34,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:38:34,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1082743366, now seen corresponding path program 1 times [2021-11-25 20:38:34,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:38:34,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43364301] [2021-11-25 20:38:34,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:38:34,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:38:34,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:38:36,245 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:38:36,246 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:38:36,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43364301] [2021-11-25 20:38:36,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43364301] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:38:36,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157556042] [2021-11-25 20:38:36,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:38:36,246 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:38:36,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:38:36,247 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:38:36,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-25 20:38:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:38:36,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 96 conjunts are in the unsatisfiable core [2021-11-25 20:38:36,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:38:36,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:38:36,916 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:38:36,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:38:37,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:38:37,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:38:37,206 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:38:37,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 62 [2021-11-25 20:38:37,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 41 [2021-11-25 20:38:37,482 INFO L354 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2021-11-25 20:38:37,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 103 treesize of output 48 [2021-11-25 20:38:37,497 INFO L354 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2021-11-25 20:38:37,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 25 [2021-11-25 20:38:37,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:38:37,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:38:37,712 WARN L860 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int) (v_ArrVal_2139 (Array Int Int)) (v_ArrVal_2140 (Array Int Int))) (and (= (store |c_old(#memory_$Pointer$.base)| |node_create_~temp~0#1.base| v_ArrVal_2139) |c_#memory_$Pointer$.base|) (<= (+ |node_create_~temp~0#1.base| 1) |c_#StackHeapBarrier|) (= (store |c_old(#length)| |node_create_~temp~0#1.base| (select |c_#length| |node_create_~temp~0#1.base|)) |c_#length|) (= 0 (select |c_old(#valid)| |node_create_~temp~0#1.base|)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |node_create_~temp~0#1.base| v_ArrVal_2140)))) is different from true [2021-11-25 20:38:37,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:37,747 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:38:37,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 109 treesize of output 97 [2021-11-25 20:38:37,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:37,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:37,760 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-25 20:38:37,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 91 [2021-11-25 20:38:37,780 INFO L354 Elim1Store]: treesize reduction 8, result has 77.1 percent of original size [2021-11-25 20:38:37,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 36 [2021-11-25 20:38:37,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 39 [2021-11-25 20:38:38,005 INFO L354 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2021-11-25 20:38:38,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 109 treesize of output 54 [2021-11-25 20:38:38,016 INFO L354 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2021-11-25 20:38:38,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 28 [2021-11-25 20:38:38,095 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-11-25 20:38:38,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:38:38,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157556042] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:38:38,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1108866335] [2021-11-25 20:38:38,647 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2021-11-25 20:38:38,647 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:38:38,648 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:38:38,648 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:38:38,648 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:38:38,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:38,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:38,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:38:38,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:38,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:38,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:38:38,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:38:38,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:38:38,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:38:38,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:38:38,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:38:38,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:38,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:38:38,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:38,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:38:38,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:38:38,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:38,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:38,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:38,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:38:38,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:38,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:38,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:38,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:38:38,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:38:38,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:38,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:38,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:38:38,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:38,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:38,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:38:38,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:38,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:38,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:38:39,063 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:39,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2021-11-25 20:38:39,076 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:39,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:39,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:39,079 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:39,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:39,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:38:39,095 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:39,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:39,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:39,098 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:39,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:39,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 239 [2021-11-25 20:38:39,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:39,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:38:39,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:39,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 233 [2021-11-25 20:38:39,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:39,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 240 treesize of output 221 [2021-11-25 20:38:39,420 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-11-25 20:38:39,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 202 treesize of output 191 [2021-11-25 20:38:39,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:39,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:38:39,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:39,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 204 treesize of output 186 [2021-11-25 20:38:39,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:39,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 192 treesize of output 174 [2021-11-25 20:38:39,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 178 treesize of output 170 [2021-11-25 20:38:39,828 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-11-25 20:38:39,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 194 treesize of output 183 [2021-11-25 20:38:40,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:38:40,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:40,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:40,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 204 treesize of output 186 [2021-11-25 20:38:40,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 182 [2021-11-25 20:38:40,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:40,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 168 [2021-11-25 20:38:40,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:38:40,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:40,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:40,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:40,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:38:40,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:38:40,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:38:40,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-25 20:38:40,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:40,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:38:40,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:38:40,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:38:40,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:40,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:38:40,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:38:40,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:38:40,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-25 20:38:40,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:40,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:38:40,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:40,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:40,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:38:40,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:38:40,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:38:40,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:40,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:38:40,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:40,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:38:40,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:40,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:38:40,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:40,806 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:38:40,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 151 treesize of output 106 [2021-11-25 20:38:40,822 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-25 20:38:40,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 76 [2021-11-25 20:38:40,838 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:40,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:38:40,855 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:38:40,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2021-11-25 20:38:40,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:41,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:41,117 INFO L354 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2021-11-25 20:38:41,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 109 [2021-11-25 20:38:41,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:41,136 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:38:41,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 77 [2021-11-25 20:38:41,158 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:38:41,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2021-11-25 20:38:41,176 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:41,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:38:41,389 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:41,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 160 [2021-11-25 20:38:41,400 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:41,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:41,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:41,404 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:41,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:41,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 151 [2021-11-25 20:38:41,417 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:41,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:41,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:41,420 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:41,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:41,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 155 [2021-11-25 20:38:41,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:41,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 149 [2021-11-25 20:38:41,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:41,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 137 [2021-11-25 20:38:41,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:41,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:38:41,670 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:41,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 160 [2021-11-25 20:38:41,680 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:41,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:41,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:41,682 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:41,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:41,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 151 [2021-11-25 20:38:41,692 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:41,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:41,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:41,694 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:41,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:41,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 155 [2021-11-25 20:38:41,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:41,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 149 [2021-11-25 20:38:41,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:41,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 137 [2021-11-25 20:38:41,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:41,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:38:41,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:41,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:38:41,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:41,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:38:41,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:41,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:38:42,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:42,175 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:38:42,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 151 treesize of output 106 [2021-11-25 20:38:42,200 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-25 20:38:42,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 76 [2021-11-25 20:38:42,221 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:38:42,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2021-11-25 20:38:42,239 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:42,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:38:42,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:42,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:42,451 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:38:42,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 151 treesize of output 106 [2021-11-25 20:38:42,470 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-25 20:38:42,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 76 [2021-11-25 20:38:42,490 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:38:42,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2021-11-25 20:38:42,508 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:42,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:38:42,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:42,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:42,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:38:42,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:38:42,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:42,642 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:42,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:38:42,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:42,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:38:42,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:42,663 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:42,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:38:42,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:42,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:42,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:38:42,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:38:42,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:42,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:38:42,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:38:43,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:43,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:43,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:43,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:38:43,653 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 49 for LOIs [2021-11-25 20:38:44,073 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:38:56,876 WARN L227 SmtUtils]: Spent 6.24s on a formula simplification. DAG size of input: 105 DAG size of output: 91 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 20:39:00,875 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5480#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (or (< (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4) 0) (< (select |#length| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 8))) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= |#NULL.base| 0))' at error location [2021-11-25 20:39:00,876 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:39:00,876 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:39:00,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25] total 45 [2021-11-25 20:39:00,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199118501] [2021-11-25 20:39:00,876 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 20:39:00,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-11-25 20:39:00,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:39:00,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-11-25 20:39:00,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=4420, Unknown=3, NotChecked=134, Total=4830 [2021-11-25 20:39:00,880 INFO L87 Difference]: Start difference. First operand 94 states and 108 transitions. Second operand has 46 states, 37 states have (on average 1.8918918918918919) internal successors, (70), 39 states have internal predecessors, (70), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:39:03,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:39:03,873 INFO L93 Difference]: Finished difference Result 160 states and 184 transitions. [2021-11-25 20:39:03,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-25 20:39:03,874 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 37 states have (on average 1.8918918918918919) internal successors, (70), 39 states have internal predecessors, (70), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 44 [2021-11-25 20:39:03,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:39:03,876 INFO L225 Difference]: With dead ends: 160 [2021-11-25 20:39:03,876 INFO L226 Difference]: Without dead ends: 160 [2021-11-25 20:39:03,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 51 SyntacticMatches, 5 SemanticMatches, 84 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2343 ImplicationChecksByTransitivity, 20.4s TimeCoverageRelationStatistics Valid=459, Invalid=6682, Unknown=3, NotChecked=166, Total=7310 [2021-11-25 20:39:03,879 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 202 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 1479 SdHoareTripleChecker+Invalid, 1943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 205 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:39:03,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 1479 Invalid, 1943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1701 Invalid, 0 Unknown, 205 Unchecked, 1.6s Time] [2021-11-25 20:39:03,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-11-25 20:39:03,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 96. [2021-11-25 20:39:03,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 73 states have (on average 1.4246575342465753) internal successors, (104), 90 states have internal predecessors, (104), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:39:03,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2021-11-25 20:39:03,885 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 44 [2021-11-25 20:39:03,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:39:03,886 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2021-11-25 20:39:03,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 37 states have (on average 1.8918918918918919) internal successors, (70), 39 states have internal predecessors, (70), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:39:03,886 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2021-11-25 20:39:03,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-25 20:39:03,887 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:39:03,887 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:39:03,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-25 20:39:04,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:39:04,088 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:39:04,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:39:04,089 INFO L85 PathProgramCache]: Analyzing trace with hash -2127614617, now seen corresponding path program 1 times [2021-11-25 20:39:04,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:39:04,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726488231] [2021-11-25 20:39:04,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:39:04,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:39:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:39:04,469 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 20:39:04,469 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:39:04,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726488231] [2021-11-25 20:39:04,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726488231] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:39:04,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439244504] [2021-11-25 20:39:04,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:39:04,469 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:39:04,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:39:04,471 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:39:04,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-25 20:39:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:39:04,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-25 20:39:04,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:39:05,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:39:05,145 WARN L860 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int) (v_ArrVal_2352 (Array Int Int))) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |node_create_~temp~0#1.base| v_ArrVal_2352)) (<= (+ |node_create_~temp~0#1.base| 1) |c_#StackHeapBarrier|))) is different from true [2021-11-25 20:39:05,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 17 [2021-11-25 20:39:05,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-11-25 20:39:05,218 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 1 not checked. [2021-11-25 20:39:05,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:39:05,289 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2357 (Array Int Int)) (|v_node_create_~temp~0#1.base_63| Int)) (or (not (= (select (select (store |c_#memory_$Pointer$.base| |v_node_create_~temp~0#1.base_63| v_ArrVal_2357) |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 0)) (<= |c_#StackHeapBarrier| |v_node_create_~temp~0#1.base_63|))) is different from false [2021-11-25 20:39:05,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439244504] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:39:05,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2124690136] [2021-11-25 20:39:05,293 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2021-11-25 20:39:05,294 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:39:05,294 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:39:05,294 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:39:05,294 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:39:05,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:39:05,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:39:05,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:39:05,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:39:05,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:39:05,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:39:05,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:39:05,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:39:05,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:39:05,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:39:05,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:39:05,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:39:05,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:39:05,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:39:05,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:39:05,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:39:05,659 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:05,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2021-11-25 20:39:05,668 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:05,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,671 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:05,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:39:05,682 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:05,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,685 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:05,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 239 [2021-11-25 20:39:05,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 233 [2021-11-25 20:39:05,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 240 treesize of output 221 [2021-11-25 20:39:05,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:05,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:39:05,963 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-11-25 20:39:05,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 194 treesize of output 183 [2021-11-25 20:39:06,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 202 treesize of output 194 [2021-11-25 20:39:06,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:06,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 198 treesize of output 180 [2021-11-25 20:39:06,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:06,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 168 [2021-11-25 20:39:06,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:06,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:39:06,360 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-11-25 20:39:06,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 202 treesize of output 191 [2021-11-25 20:39:06,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:39:06,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:06,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:06,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 204 treesize of output 186 [2021-11-25 20:39:06,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 182 [2021-11-25 20:39:06,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:06,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 168 [2021-11-25 20:39:06,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:39:06,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:39:06,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:39:06,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:39:06,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:06,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:39:06,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:39:06,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:39:06,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-25 20:39:06,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:39:06,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:06,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:39:06,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:39:06,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:39:07,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-25 20:39:07,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:39:07,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:07,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:39:07,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:39:07,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:39:07,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:07,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:39:07,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:39:07,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:39:07,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:07,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:39:07,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:07,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:39:07,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:07,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:39:07,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:07,451 INFO L354 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2021-11-25 20:39:07,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 109 [2021-11-25 20:39:07,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:07,470 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:39:07,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 77 [2021-11-25 20:39:07,489 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:39:07,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:39:07,510 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:39:07,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2021-11-25 20:39:07,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:07,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:07,691 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:39:07,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 151 treesize of output 106 [2021-11-25 20:39:07,706 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-25 20:39:07,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 76 [2021-11-25 20:39:07,723 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:39:07,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2021-11-25 20:39:07,738 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:39:07,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:39:07,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:39:07,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:39:07,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:39:07,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:07,872 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:07,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:39:07,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:07,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:39:07,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:07,888 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:07,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:39:07,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:39:07,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:39:07,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:39:07,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:07,970 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:07,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:39:07,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:07,978 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:07,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:39:07,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:07,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:39:08,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:08,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:39:08,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:08,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:39:08,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:08,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:39:08,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:08,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:08,245 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:39:08,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 151 treesize of output 106 [2021-11-25 20:39:08,260 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-25 20:39:08,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 76 [2021-11-25 20:39:08,276 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:39:08,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:39:08,292 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:39:08,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2021-11-25 20:39:08,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:08,536 INFO L354 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2021-11-25 20:39:08,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 109 [2021-11-25 20:39:08,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:08,551 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:39:08,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 77 [2021-11-25 20:39:08,583 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:39:08,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:39:08,599 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:39:08,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2021-11-25 20:39:08,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:39:08,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:39:08,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:39:08,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:08,691 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:08,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:39:08,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:08,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:39:08,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:08,712 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:08,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:39:08,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:39:08,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:39:08,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:39:08,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:39:08,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:39:08,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:08,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:39:09,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:09,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:09,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:09,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:09,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:39:09,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:39:09,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:39:09,422 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 49 for LOIs [2021-11-25 20:39:09,844 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:39:16,487 WARN L227 SmtUtils]: Spent 5.41s on a formula simplification. DAG size of input: 93 DAG size of output: 79 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 20:39:23,067 WARN L227 SmtUtils]: Spent 6.46s on a formula simplification. DAG size of input: 105 DAG size of output: 91 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 20:39:25,485 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5981#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= (+ |ULTIMATE.start_dll_append_~head#1.offset| 4) (select |#length| |ULTIMATE.start_dll_append_~head#1.base|)) (= (select |#valid| |ULTIMATE.start_main_~ptr~0#1.base|) 1) (<= (+ |ULTIMATE.start_main_~ptr~0#1.offset| 8) (select |#length| |ULTIMATE.start_main_~ptr~0#1.base|)) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~#s~0#1.base|) 1) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~head#1.base|) |ULTIMATE.start_dll_append_~head#1.offset|) |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~count~0#1| 0) (<= (+ |ULTIMATE.start_main_~#s~0#1.offset| 4) (select |#length| |ULTIMATE.start_main_~#s~0#1.base|)) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (= (select |#valid| |ULTIMATE.start_dll_append_~head#1.base|) 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~head#1.base|) |ULTIMATE.start_dll_append_~head#1.offset|) |ULTIMATE.start_dll_append_~new_last~0#1.base|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) 0) (= |#NULL.base| 0))' at error location [2021-11-25 20:39:25,485 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:39:25,486 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:39:25,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 23 [2021-11-25 20:39:25,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552758523] [2021-11-25 20:39:25,486 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 20:39:25,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-25 20:39:25,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:39:25,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-25 20:39:25,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1734, Unknown=2, NotChecked=170, Total=2070 [2021-11-25 20:39:25,489 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand has 23 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 20 states have internal predecessors, (57), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-25 20:39:26,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:39:26,046 INFO L93 Difference]: Finished difference Result 85 states and 95 transitions. [2021-11-25 20:39:26,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 20:39:26,047 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 20 states have internal predecessors, (57), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 46 [2021-11-25 20:39:26,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:39:26,048 INFO L225 Difference]: With dead ends: 85 [2021-11-25 20:39:26,048 INFO L226 Difference]: Without dead ends: 85 [2021-11-25 20:39:26,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 69 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 800 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=240, Invalid=2316, Unknown=2, NotChecked=198, Total=2756 [2021-11-25 20:39:26,049 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 298 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 77 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:39:26,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 497 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 405 Invalid, 0 Unknown, 77 Unchecked, 0.3s Time] [2021-11-25 20:39:26,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-25 20:39:26,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-11-25 20:39:26,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 62 states have (on average 1.435483870967742) internal successors, (89), 79 states have internal predecessors, (89), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:39:26,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 95 transitions. [2021-11-25 20:39:26,055 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 95 transitions. Word has length 46 [2021-11-25 20:39:26,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:39:26,055 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 95 transitions. [2021-11-25 20:39:26,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 20 states have internal predecessors, (57), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-25 20:39:26,056 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 95 transitions. [2021-11-25 20:39:26,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-25 20:39:26,057 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:39:26,057 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:39:26,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-25 20:39:26,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:39:26,276 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:39:26,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:39:26,277 INFO L85 PathProgramCache]: Analyzing trace with hash -803215521, now seen corresponding path program 2 times [2021-11-25 20:39:26,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:39:26,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555221279] [2021-11-25 20:39:26,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:39:26,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:39:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:39:28,411 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:39:28,411 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:39:28,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555221279] [2021-11-25 20:39:28,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555221279] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:39:28,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126665641] [2021-11-25 20:39:28,412 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 20:39:28,412 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:39:28,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:39:28,413 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:39:28,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-25 20:39:29,203 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 20:39:29,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:39:29,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 133 conjunts are in the unsatisfiable core [2021-11-25 20:39:29,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:39:29,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:39:29,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:39:30,053 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:39:30,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2021-11-25 20:39:30,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:30,079 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:39:30,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:39:30,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-11-25 20:39:30,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-11-25 20:39:30,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-11-25 20:39:30,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:39:30,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:39:30,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:30,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:30,561 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:30,564 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:39:30,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 89 [2021-11-25 20:39:30,580 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-11-25 20:39:30,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 70 [2021-11-25 20:39:30,931 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 20:39:30,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 111 treesize of output 60 [2021-11-25 20:39:30,940 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-25 20:39:30,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 18 [2021-11-25 20:39:31,121 WARN L860 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int) (v_ArrVal_2567 (Array Int Int)) (v_ArrVal_2566 (Array Int Int))) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |node_create_~temp~0#1.base| v_ArrVal_2567)) (<= (+ |node_create_~temp~0#1.base| 1) |c_#StackHeapBarrier|) (= (store |c_old(#memory_$Pointer$.base)| |node_create_~temp~0#1.base| v_ArrVal_2566) |c_#memory_$Pointer$.base|) (= 0 (select |c_old(#valid)| |node_create_~temp~0#1.base|)))) is different from true [2021-11-25 20:39:31,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:31,166 INFO L354 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2021-11-25 20:39:31,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 117 treesize of output 101 [2021-11-25 20:39:31,184 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-25 20:39:31,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:39:31,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:31,195 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-25 20:39:31,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 76 [2021-11-25 20:39:31,807 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2021-11-25 20:39:31,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:39:32,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126665641] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:39:32,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1582882198] [2021-11-25 20:39:32,360 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2021-11-25 20:39:32,360 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:39:32,360 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:39:32,361 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:39:32,361 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:39:32,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:39:32,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:39:32,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:39:32,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:39:32,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:39:32,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:39:32,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:39:32,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:39:32,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:39:32,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:39:32,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:39:32,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:39:32,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:39:32,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:39:32,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:39:32,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:39:32,674 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:32,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2021-11-25 20:39:32,683 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:32,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,686 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:32,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:39:32,698 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:32,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,701 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:32,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 239 [2021-11-25 20:39:32,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 233 [2021-11-25 20:39:32,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 240 treesize of output 221 [2021-11-25 20:39:32,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:32,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:39:32,980 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-11-25 20:39:32,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 194 treesize of output 183 [2021-11-25 20:39:33,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:33,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:39:33,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 202 treesize of output 194 [2021-11-25 20:39:33,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:33,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 198 treesize of output 180 [2021-11-25 20:39:33,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:33,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 168 [2021-11-25 20:39:33,361 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-11-25 20:39:33,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 194 treesize of output 183 [2021-11-25 20:39:33,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:39:33,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:33,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 204 treesize of output 186 [2021-11-25 20:39:33,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:33,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 192 treesize of output 174 [2021-11-25 20:39:33,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 178 treesize of output 170 [2021-11-25 20:39:33,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:33,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:39:33,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:39:33,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:39:33,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:39:33,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:39:33,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:33,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:39:34,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:39:34,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:34,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-25 20:39:34,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:39:34,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:39:34,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:34,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:39:34,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-25 20:39:34,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:39:34,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:39:34,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:39:34,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:39:34,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:39:34,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:39:34,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:34,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:39:34,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:39:34,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:34,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:39:34,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:34,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:39:34,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:34,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:39:34,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:34,443 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:39:34,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 151 treesize of output 106 [2021-11-25 20:39:34,459 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-25 20:39:34,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 76 [2021-11-25 20:39:34,477 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:39:34,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2021-11-25 20:39:34,492 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:39:34,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:39:34,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:34,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:34,718 INFO L354 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2021-11-25 20:39:34,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 109 [2021-11-25 20:39:34,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:34,733 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:39:34,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 77 [2021-11-25 20:39:34,747 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:39:34,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:39:34,764 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:39:34,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2021-11-25 20:39:34,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:39:34,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:39:34,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:39:34,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:34,852 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:34,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:39:34,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:34,861 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:34,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:39:34,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:34,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:39:34,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:39:34,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:39:34,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:39:34,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:34,948 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:34,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:39:34,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:34,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:39:34,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:34,968 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:34,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:39:35,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:35,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:39:35,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:35,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:39:35,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:35,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:39:35,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:35,241 INFO L354 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2021-11-25 20:39:35,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 109 [2021-11-25 20:39:35,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:35,257 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:39:35,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 77 [2021-11-25 20:39:35,274 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:39:35,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:39:35,291 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:39:35,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2021-11-25 20:39:35,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:35,472 INFO L354 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2021-11-25 20:39:35,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 109 [2021-11-25 20:39:35,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:35,487 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:39:35,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 77 [2021-11-25 20:39:35,504 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:39:35,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2021-11-25 20:39:35,518 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:39:35,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:39:35,738 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:35,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 160 [2021-11-25 20:39:35,759 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:35,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:35,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:35,762 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:35,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:35,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 151 [2021-11-25 20:39:35,772 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:35,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:35,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:35,774 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:35,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:35,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 155 [2021-11-25 20:39:35,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:35,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:39:35,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:35,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 149 [2021-11-25 20:39:35,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:35,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 137 [2021-11-25 20:39:35,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:39:35,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:39:35,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:39:35,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:39:35,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:35,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:39:35,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:39:36,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:36,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:36,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:36,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:36,588 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 49 for LOIs [2021-11-25 20:39:37,026 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:39:44,307 WARN L227 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 93 DAG size of output: 79 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 20:39:50,722 WARN L227 SmtUtils]: Spent 6.15s on a formula simplification. DAG size of input: 105 DAG size of output: 91 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 20:39:53,222 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6416#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (not (= (select |#valid| |ULTIMATE.start_dll_append_~last~0#1.base|) 1)) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= |#NULL.base| 0))' at error location [2021-11-25 20:39:53,223 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:39:53,223 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:39:53,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 28] total 51 [2021-11-25 20:39:53,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235265365] [2021-11-25 20:39:53,223 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 20:39:53,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2021-11-25 20:39:53,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:39:53,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-11-25 20:39:53,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=5130, Unknown=3, NotChecked=144, Total=5550 [2021-11-25 20:39:53,228 INFO L87 Difference]: Start difference. First operand 85 states and 95 transitions. Second operand has 51 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 45 states have internal predecessors, (74), 6 states have call successors, (6), 2 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:39:55,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:39:55,059 INFO L93 Difference]: Finished difference Result 104 states and 119 transitions. [2021-11-25 20:39:55,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-25 20:39:55,060 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 45 states have internal predecessors, (74), 6 states have call successors, (6), 2 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 47 [2021-11-25 20:39:55,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:39:55,061 INFO L225 Difference]: With dead ends: 104 [2021-11-25 20:39:55,061 INFO L226 Difference]: Without dead ends: 104 [2021-11-25 20:39:55,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 60 SyntacticMatches, 6 SemanticMatches, 85 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2237 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=385, Invalid=6926, Unknown=3, NotChecked=168, Total=7482 [2021-11-25 20:39:55,065 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 24 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 234 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:39:55,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 1034 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 925 Invalid, 0 Unknown, 234 Unchecked, 0.9s Time] [2021-11-25 20:39:55,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-11-25 20:39:55,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2021-11-25 20:39:55,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 95 states have internal predecessors, (107), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:39:55,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2021-11-25 20:39:55,073 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 47 [2021-11-25 20:39:55,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:39:55,074 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2021-11-25 20:39:55,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 45 states have internal predecessors, (74), 6 states have call successors, (6), 2 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:39:55,074 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2021-11-25 20:39:55,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-25 20:39:55,075 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:39:55,075 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:39:55,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-25 20:39:55,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:39:55,303 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:39:55,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:39:55,304 INFO L85 PathProgramCache]: Analyzing trace with hash -973516319, now seen corresponding path program 1 times [2021-11-25 20:39:55,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:39:55,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545103229] [2021-11-25 20:39:55,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:39:55,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:39:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:39:55,784 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 20:39:55,784 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:39:55,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545103229] [2021-11-25 20:39:55,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545103229] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:39:55,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:39:55,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-25 20:39:55,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765865050] [2021-11-25 20:39:55,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:39:55,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-25 20:39:55,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:39:55,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-25 20:39:55,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2021-11-25 20:39:55,786 INFO L87 Difference]: Start difference. First operand 103 states and 117 transitions. Second operand has 20 states, 16 states have (on average 2.5) internal successors, (40), 17 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-25 20:39:56,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:39:56,554 INFO L93 Difference]: Finished difference Result 159 states and 179 transitions. [2021-11-25 20:39:56,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 20:39:56,563 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 16 states have (on average 2.5) internal successors, (40), 17 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 47 [2021-11-25 20:39:56,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:39:56,565 INFO L225 Difference]: With dead ends: 159 [2021-11-25 20:39:56,565 INFO L226 Difference]: Without dead ends: 159 [2021-11-25 20:39:56,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=825, Unknown=0, NotChecked=0, Total=992 [2021-11-25 20:39:56,566 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 547 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:39:56,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [548 Valid, 325 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 20:39:56,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-11-25 20:39:56,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 108. [2021-11-25 20:39:56,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 83 states have (on average 1.3614457831325302) internal successors, (113), 100 states have internal predecessors, (113), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:39:56,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 123 transitions. [2021-11-25 20:39:56,573 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 123 transitions. Word has length 47 [2021-11-25 20:39:56,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:39:56,574 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 123 transitions. [2021-11-25 20:39:56,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 16 states have (on average 2.5) internal successors, (40), 17 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-25 20:39:56,574 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 123 transitions. [2021-11-25 20:39:56,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-25 20:39:56,575 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:39:56,575 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:39:56,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-25 20:39:56,576 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:39:56,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:39:56,576 INFO L85 PathProgramCache]: Analyzing trace with hash -973516318, now seen corresponding path program 1 times [2021-11-25 20:39:56,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:39:56,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164234608] [2021-11-25 20:39:56,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:39:56,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:39:56,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:39:58,109 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 20:39:58,110 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:39:58,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164234608] [2021-11-25 20:39:58,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164234608] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:39:58,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544764627] [2021-11-25 20:39:58,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:39:58,110 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:39:58,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:39:58,111 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:39:58,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-25 20:39:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:39:58,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 57 conjunts are in the unsatisfiable core [2021-11-25 20:39:58,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:39:58,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:58,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:39:58,980 WARN L860 $PredicateComparison]: unable to prove that (and (< |c_node_create_~temp~0#1.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_2890 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_node_create_~temp~0#1.base| v_ArrVal_2890))) (exists ((v_ArrVal_2891 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_node_create_~temp~0#1.base| v_ArrVal_2891)))) is different from true [2021-11-25 20:39:58,991 WARN L860 $PredicateComparison]: unable to prove that (and (< |c_node_create_~temp~0#1.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_2893 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_node_create_~temp~0#1.base| v_ArrVal_2893))) (exists ((v_ArrVal_2892 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_node_create_~temp~0#1.base| v_ArrVal_2892)))) is different from true [2021-11-25 20:39:59,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:59,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:39:59,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:59,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-11-25 20:39:59,449 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:39:59,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 44 [2021-11-25 20:39:59,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:59,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-11-25 20:39:59,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:59,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 31 [2021-11-25 20:39:59,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:59,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2021-11-25 20:39:59,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2021-11-25 20:39:59,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-11-25 20:39:59,633 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 2 not checked. [2021-11-25 20:39:59,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:39:59,735 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2899 (Array Int Int)) (v_ArrVal_2898 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2898) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 8) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2899) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))) (forall ((v_ArrVal_2898 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2898) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) is different from false [2021-11-25 20:39:59,744 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2899 (Array Int Int)) (v_ArrVal_2898 (Array Int Int)) (v_ArrVal_2897 (Array Int Int)) (v_ArrVal_2896 (Array Int Int))) (<= (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_2896) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2898) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 8) (select |c_#length| (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_2897) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2899) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))) (forall ((v_ArrVal_2898 (Array Int Int)) (v_ArrVal_2896 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_2896) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2898) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) is different from false [2021-11-25 20:39:59,763 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:39:59,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 55 [2021-11-25 20:39:59,816 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2898 (Array Int Int)) (v_ArrVal_2896 (Array Int Int))) (<= (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_2896) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2898) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |c_ULTIMATE.start_dll_append_~last~0#1.offset|)) (forall ((v_ArrVal_2899 (Array Int Int)) (v_ArrVal_2897 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_2897) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2899) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |c_ULTIMATE.start_dll_append_~last~0#1.base|)) (forall ((v_prenex_21 (Array Int Int)) (v_prenex_20 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_prenex_21) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_prenex_20) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) is different from false [2021-11-25 20:39:59,848 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2899 (Array Int Int)) (v_ArrVal_2897 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|))) (= (select (select (store (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_2897) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2899) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) .cse0))) (forall ((v_ArrVal_2898 (Array Int Int)) (v_ArrVal_2896 (Array Int Int))) (<= (select (select (store (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) v_ArrVal_2896) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2898) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|))) (forall ((v_prenex_21 (Array Int Int)) (v_prenex_20 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) v_prenex_21) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_prenex_20) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) is different from false [2021-11-25 20:39:59,913 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_append_~new_last~0#1.base_23| Int)) (or (< |c_ULTIMATE.start_dll_append_#t~ret7#1.base| |v_ULTIMATE.start_dll_append_~new_last~0#1.base_23|) (and (forall ((v_ArrVal_2898 (Array Int Int)) (v_ArrVal_2896 (Array Int Int))) (<= (select (select (store (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) v_ArrVal_2896) |v_ULTIMATE.start_dll_append_~new_last~0#1.base_23| v_ArrVal_2898) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|))) (forall ((v_ArrVal_2899 (Array Int Int)) (v_ArrVal_2897 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|))) (= (select (select (store (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_2897) |v_ULTIMATE.start_dll_append_~new_last~0#1.base_23| v_ArrVal_2899) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) .cse0))) (forall ((v_prenex_21 (Array Int Int)) (v_prenex_20 (Array Int Int))) (<= 0 (+ 4 (select (select (store (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) v_prenex_21) |v_ULTIMATE.start_dll_append_~new_last~0#1.base_23| v_prenex_20) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))))) is different from false [2021-11-25 20:40:00,137 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_append_~new_last~0#1.base_23| Int) (|v_node_create_~temp~0#1.base_69| Int)) (or (and (forall ((v_ArrVal_2899 (Array Int Int)) (v_ArrVal_2897 (Array Int Int)) (v_ArrVal_2909 (Array Int Int))) (let ((.cse0 (store |c_#memory_$Pointer$.base| |v_node_create_~temp~0#1.base_69| v_ArrVal_2909))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|))) (= (select (select (store (store .cse0 .cse1 v_ArrVal_2897) |v_ULTIMATE.start_dll_append_~new_last~0#1.base_23| v_ArrVal_2899) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) .cse1)))) (forall ((v_ArrVal_2898 (Array Int Int)) (v_ArrVal_2896 (Array Int Int)) (v_ArrVal_2909 (Array Int Int)) (v_ArrVal_2908 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.offset| |v_node_create_~temp~0#1.base_69| v_ArrVal_2908))) (<= (select (select (store (store .cse2 (select (select (store |c_#memory_$Pointer$.base| |v_node_create_~temp~0#1.base_69| v_ArrVal_2909) |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) v_ArrVal_2896) |v_ULTIMATE.start_dll_append_~new_last~0#1.base_23| v_ArrVal_2898) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) (select (select .cse2 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)))) (forall ((v_prenex_21 (Array Int Int)) (v_prenex_20 (Array Int Int)) (v_ArrVal_2909 (Array Int Int)) (v_ArrVal_2908 (Array Int Int))) (<= 0 (+ (select (select (store (store (store |c_#memory_$Pointer$.offset| |v_node_create_~temp~0#1.base_69| v_ArrVal_2908) (select (select (store |c_#memory_$Pointer$.base| |v_node_create_~temp~0#1.base_69| v_ArrVal_2909) |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) v_prenex_21) |v_ULTIMATE.start_dll_append_~new_last~0#1.base_23| v_prenex_20) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) (<= |c_#StackHeapBarrier| |v_node_create_~temp~0#1.base_69|) (< |v_node_create_~temp~0#1.base_69| |v_ULTIMATE.start_dll_append_~new_last~0#1.base_23|))) is different from false [2021-11-25 20:40:00,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544764627] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:40:00,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [633986230] [2021-11-25 20:40:00,141 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2021-11-25 20:40:00,141 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:40:00,141 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:40:00,141 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:40:00,141 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:40:00,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:40:00,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:40:00,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:40:00,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:40:00,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:40:00,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:00,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:00,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:40:00,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:40:00,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:40:00,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:40:00,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:40:00,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:40:00,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:40:00,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:40:00,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:40:00,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:40:00,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:40:00,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:40:00,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,454 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:00,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:40:00,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,465 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:00,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:40:00,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:40:00,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,521 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:40:00,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:40:00,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:40:00,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:00,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:40:00,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:00,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:40:00,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,608 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:40:00,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:40:00,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:00,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:40:00,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:40:00,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:40:00,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:00,770 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:00,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 259 [2021-11-25 20:40:00,777 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:00,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,779 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:00,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 250 [2021-11-25 20:40:00,788 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:00,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,804 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:00,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 254 [2021-11-25 20:40:00,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:40:00,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 248 [2021-11-25 20:40:00,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 255 treesize of output 236 [2021-11-25 20:40:00,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,948 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:40:00,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:40:00,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:40:00,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:40:00,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:40:00,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:01,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:01,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,025 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:40:01,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:40:01,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:40:01,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:01,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:40:01,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:40:01,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:01,152 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:01,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 259 [2021-11-25 20:40:01,160 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:01,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,162 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:01,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 250 [2021-11-25 20:40:01,171 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:01,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,173 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:01,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 254 [2021-11-25 20:40:01,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 248 [2021-11-25 20:40:01,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 255 treesize of output 236 [2021-11-25 20:40:01,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:40:01,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:40:01,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,361 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:01,371 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:40:01,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 240 treesize of output 236 [2021-11-25 20:40:01,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,381 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:01,393 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 20:40:01,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 240 treesize of output 240 [2021-11-25 20:40:01,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:40:01,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,517 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:01,527 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:40:01,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 240 treesize of output 236 [2021-11-25 20:40:01,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,537 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:01,549 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 20:40:01,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 240 treesize of output 240 [2021-11-25 20:40:01,698 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:01,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 259 [2021-11-25 20:40:01,705 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:01,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,707 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:01,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 250 [2021-11-25 20:40:01,716 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:01,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,718 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:01,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 254 [2021-11-25 20:40:01,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:40:01,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 248 [2021-11-25 20:40:01,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 255 treesize of output 236 [2021-11-25 20:40:02,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:02,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:02,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:02,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:02,333 INFO L354 Elim1Store]: treesize reduction 25, result has 40.5 percent of original size [2021-11-25 20:40:02,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 220 treesize of output 210 [2021-11-25 20:40:02,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:02,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:02,406 INFO L354 Elim1Store]: treesize reduction 126, result has 14.9 percent of original size [2021-11-25 20:40:02,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 239 treesize of output 226 [2021-11-25 20:40:02,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:02,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:02,471 INFO L354 Elim1Store]: treesize reduction 110, result has 25.7 percent of original size [2021-11-25 20:40:02,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 235 treesize of output 238 [2021-11-25 20:40:02,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:02,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 242 [2021-11-25 20:40:02,665 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:02,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:02,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:02,715 INFO L354 Elim1Store]: treesize reduction 69, result has 21.6 percent of original size [2021-11-25 20:40:02,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 272 treesize of output 275 [2021-11-25 20:40:02,736 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:02,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:02,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:02,772 INFO L354 Elim1Store]: treesize reduction 64, result has 27.3 percent of original size [2021-11-25 20:40:02,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 277 treesize of output 280 [2021-11-25 20:40:03,068 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 49 for LOIs [2021-11-25 20:40:03,450 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:40:13,954 WARN L227 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 105 DAG size of output: 91 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 20:40:21,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [633986230] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:40:21,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:40:21,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [20, 21] total 63 [2021-11-25 20:40:21,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733456462] [2021-11-25 20:40:21,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:40:21,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-25 20:40:21,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:40:21,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-25 20:40:21,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=3767, Unknown=11, NotChecked=1048, Total=5112 [2021-11-25 20:40:21,432 INFO L87 Difference]: Start difference. First operand 108 states and 123 transitions. Second operand has 25 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:40:22,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:40:22,678 INFO L93 Difference]: Finished difference Result 147 states and 168 transitions. [2021-11-25 20:40:22,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-25 20:40:22,679 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2021-11-25 20:40:22,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:40:22,680 INFO L225 Difference]: With dead ends: 147 [2021-11-25 20:40:22,680 INFO L226 Difference]: Without dead ends: 147 [2021-11-25 20:40:22,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 54 SyntacticMatches, 3 SemanticMatches, 71 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 1190 ImplicationChecksByTransitivity, 20.0s TimeCoverageRelationStatistics Valid=299, Invalid=3882, Unknown=11, NotChecked=1064, Total=5256 [2021-11-25 20:40:22,681 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 116 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 358 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:40:22,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 242 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 799 Invalid, 0 Unknown, 358 Unchecked, 1.0s Time] [2021-11-25 20:40:22,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-11-25 20:40:22,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 115. [2021-11-25 20:40:22,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 90 states have (on average 1.3666666666666667) internal successors, (123), 107 states have internal predecessors, (123), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:40:22,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 133 transitions. [2021-11-25 20:40:22,687 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 133 transitions. Word has length 47 [2021-11-25 20:40:22,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:40:22,687 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 133 transitions. [2021-11-25 20:40:22,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:40:22,687 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 133 transitions. [2021-11-25 20:40:22,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-25 20:40:22,688 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:40:22,688 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:40:22,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-25 20:40:22,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:40:22,895 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:40:22,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:40:22,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1501043077, now seen corresponding path program 1 times [2021-11-25 20:40:22,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:40:22,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913265485] [2021-11-25 20:40:22,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:40:22,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:40:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:40:23,802 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 20:40:23,802 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:40:23,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913265485] [2021-11-25 20:40:23,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913265485] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:40:23,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311852] [2021-11-25 20:40:23,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:40:23,803 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:40:23,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:40:23,804 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:40:23,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-25 20:40:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:40:24,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-25 20:40:24,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:40:24,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2021-11-25 20:40:24,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:24,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2021-11-25 20:40:24,580 INFO L354 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2021-11-25 20:40:24,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2021-11-25 20:40:24,882 INFO L354 Elim1Store]: treesize reduction 31, result has 38.0 percent of original size [2021-11-25 20:40:24,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 44 [2021-11-25 20:40:24,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:24,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2021-11-25 20:40:24,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2021-11-25 20:40:25,026 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 20:40:25,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:40:25,036 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3124 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_3124) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) 1)) is different from false [2021-11-25 20:40:27,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311852] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:40:27,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1594652435] [2021-11-25 20:40:27,168 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2021-11-25 20:40:27,168 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:40:27,168 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:40:27,168 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:40:27,169 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:40:27,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:40:27,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:40:27,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:40:27,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:40:27,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:27,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:40:27,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:27,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:40:27,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:40:27,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:40:27,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:40:27,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:40:27,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:40:27,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:40:27,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:40:27,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:40:27,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:40:27,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:40:27,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:40:27,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,440 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:27,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:40:27,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,449 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:27,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:40:27,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:40:27,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,503 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:40:27,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:40:27,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:40:27,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:40:27,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:40:27,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:27,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:27,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,592 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:40:27,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:40:27,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:40:27,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:27,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:27,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:40:27,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:40:27,755 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:27,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2021-11-25 20:40:27,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:40:27,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:40:27,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,841 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:27,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 231 [2021-11-25 20:40:27,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,850 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:27,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 223 [2021-11-25 20:40:27,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:40:27,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,935 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:40:27,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:40:27,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:27,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:40:27,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:27,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:40:27,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:40:27,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:28,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:28,015 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:40:28,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:40:28,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:28,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:40:28,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:28,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:40:28,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:28,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:40:28,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:28,189 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:28,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2021-11-25 20:40:28,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:28,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:28,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:40:28,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:28,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:28,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:40:28,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:28,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:40:28,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:28,270 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:28,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 231 [2021-11-25 20:40:28,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:28,279 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:28,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 223 [2021-11-25 20:40:28,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:28,359 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:28,369 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:40:28,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 225 treesize of output 223 [2021-11-25 20:40:28,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:28,379 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:28,390 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 20:40:28,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 225 treesize of output 227 [2021-11-25 20:40:28,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:28,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:40:28,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:28,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:40:28,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:28,514 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:28,527 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 20:40:28,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 225 treesize of output 227 [2021-11-25 20:40:28,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:28,537 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:28,547 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:40:28,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 217 treesize of output 215 [2021-11-25 20:40:28,704 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:28,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2021-11-25 20:40:28,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:28,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:28,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:40:28,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:28,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:28,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:40:28,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:28,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:40:28,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:28,823 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:28,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 231 [2021-11-25 20:40:28,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:28,831 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:28,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 223 [2021-11-25 20:40:28,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:29,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:29,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:29,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:29,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:29,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:40:29,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:29,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:40:29,423 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-25 20:40:29,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2021-11-25 20:40:29,443 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-25 20:40:29,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:40:29,502 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 49 for LOIs [2021-11-25 20:40:29,842 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:40:41,672 WARN L227 SmtUtils]: Spent 5.72s on a formula simplification. DAG size of input: 105 DAG size of output: 91 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 20:40:46,541 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7727#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~#s~0#1.base|) 1) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (or (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (and (= |ULTIMATE.start_dll_append_~last~0#1.offset| (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 4)) (= |ULTIMATE.start_dll_append_~last~0#1.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|))) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= (select |#valid| |ULTIMATE.start_dll_append_~new_last~0#1.base|) 1) (not (= (select |#valid| |ULTIMATE.start_main_~ptr~0#1.base|) 1)) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~count~0#1| 0) (<= (+ |ULTIMATE.start_main_~#s~0#1.offset| 4) (select |#length| |ULTIMATE.start_main_~#s~0#1.base|)) (<= (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 12) (select |#length| |ULTIMATE.start_dll_append_~new_last~0#1.base|)) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= 0 (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) (<= (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 8) (select |#length| |ULTIMATE.start_dll_append_~last~0#1.base|)) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= (select |#valid| |ULTIMATE.start_dll_append_~last~0#1.base|) 1) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8)) |ULTIMATE.start_dll_append_~last~0#1.base|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.base|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= |ULTIMATE.start_dll_append_~last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8))) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= |#NULL.base| 0))' at error location [2021-11-25 20:40:46,541 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:40:46,541 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:40:46,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 19] total 41 [2021-11-25 20:40:46,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680458892] [2021-11-25 20:40:46,542 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 20:40:46,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-11-25 20:40:46,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:40:46,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-11-25 20:40:46,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=4394, Unknown=27, NotChecked=134, Total=4830 [2021-11-25 20:40:46,543 INFO L87 Difference]: Start difference. First operand 115 states and 133 transitions. Second operand has 42 states, 35 states have (on average 2.1142857142857143) internal successors, (74), 36 states have internal predecessors, (74), 3 states have call successors, (3), 3 states have call predecessors, (3), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-11-25 20:40:48,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:40:48,769 INFO L93 Difference]: Finished difference Result 202 states and 230 transitions. [2021-11-25 20:40:48,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-25 20:40:48,770 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 35 states have (on average 2.1142857142857143) internal successors, (74), 36 states have internal predecessors, (74), 3 states have call successors, (3), 3 states have call predecessors, (3), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 50 [2021-11-25 20:40:48,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:40:48,771 INFO L225 Difference]: With dead ends: 202 [2021-11-25 20:40:48,771 INFO L226 Difference]: Without dead ends: 202 [2021-11-25 20:40:48,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 70 SyntacticMatches, 6 SemanticMatches, 94 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2527 ImplicationChecksByTransitivity, 21.4s TimeCoverageRelationStatistics Valid=631, Invalid=8273, Unknown=30, NotChecked=186, Total=9120 [2021-11-25 20:40:48,773 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 677 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 190 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:40:48,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [677 Valid, 773 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1067 Invalid, 0 Unknown, 190 Unchecked, 0.7s Time] [2021-11-25 20:40:48,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-11-25 20:40:48,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 114. [2021-11-25 20:40:48,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 90 states have (on average 1.3555555555555556) internal successors, (122), 106 states have internal predecessors, (122), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:40:48,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 132 transitions. [2021-11-25 20:40:48,779 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 132 transitions. Word has length 50 [2021-11-25 20:40:48,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:40:48,779 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 132 transitions. [2021-11-25 20:40:48,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 35 states have (on average 2.1142857142857143) internal successors, (74), 36 states have internal predecessors, (74), 3 states have call successors, (3), 3 states have call predecessors, (3), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-11-25 20:40:48,779 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 132 transitions. [2021-11-25 20:40:48,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-25 20:40:48,780 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:40:48,780 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:40:48,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-11-25 20:40:48,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-25 20:40:48,991 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:40:48,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:40:48,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1501043076, now seen corresponding path program 1 times [2021-11-25 20:40:48,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:40:48,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425935244] [2021-11-25 20:40:48,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:40:48,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:40:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:40:50,344 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 20:40:50,345 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:40:50,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425935244] [2021-11-25 20:40:50,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425935244] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:40:50,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714562789] [2021-11-25 20:40:50,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:40:50,345 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:40:50,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:40:50,346 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:40:50,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-25 20:40:50,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:40:50,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 110 conjunts are in the unsatisfiable core [2021-11-25 20:40:50,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:40:50,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:40:50,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:40:50,763 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:40:50,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-25 20:40:50,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:40:51,047 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-25 20:40:51,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2021-11-25 20:40:51,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:51,326 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:40:51,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2021-11-25 20:40:51,543 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:40:51,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 21 [2021-11-25 20:40:51,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:40:51,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:51,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:51,871 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:40:51,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 48 [2021-11-25 20:40:51,878 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-25 20:40:51,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-25 20:40:51,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:51,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:40:52,420 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-25 20:40:52,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 85 [2021-11-25 20:40:52,430 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:40:52,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 44 [2021-11-25 20:40:52,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:52,526 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:40:52,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 66 treesize of output 60 [2021-11-25 20:40:52,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:52,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2021-11-25 20:40:52,619 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:40:52,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 30 [2021-11-25 20:40:52,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-11-25 20:40:52,668 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:40:52,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:40:52,785 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_3352 (Array Int Int)) (v_ArrVal_3353 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_3353) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 8) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_3352) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))) (forall ((v_ArrVal_3353 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_3353) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) is different from false [2021-11-25 20:40:52,795 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_3351 (Array Int Int)) (v_ArrVal_3353 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_3351) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_3353) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (forall ((v_ArrVal_3350 (Array Int Int)) (v_ArrVal_3351 (Array Int Int)) (v_ArrVal_3352 (Array Int Int)) (v_ArrVal_3353 (Array Int Int))) (<= (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_3351) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_3353) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 8) (select |c_#length| (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_3350) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_3352) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))) is different from false [2021-11-25 20:40:52,818 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_3350 (Array Int Int)) (v_ArrVal_3351 (Array Int Int)) (v_ArrVal_3352 (Array Int Int)) (v_ArrVal_3353 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4)))) (<= (+ 8 (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_3351) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_3353) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select |c_#length| (select (select (store (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_3350) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_3352) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))) (forall ((v_ArrVal_3351 (Array Int Int)) (v_ArrVal_3353 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4)) v_ArrVal_3351) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_3353) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) is different from false [2021-11-25 20:40:52,835 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:40:52,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 73 [2021-11-25 20:40:52,900 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_prenex_25 (Array Int Int)) (v_prenex_26 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4)) v_prenex_25) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_prenex_26) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (forall ((v_ArrVal_3351 (Array Int Int)) (v_ArrVal_3353 (Array Int Int))) (<= (select (select (store (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4)) v_ArrVal_3351) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_3353) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |c_ULTIMATE.start_dll_append_~last~0#1.offset|)) (forall ((v_ArrVal_3350 (Array Int Int)) (v_ArrVal_3352 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4)) v_ArrVal_3350) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_3352) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |c_ULTIMATE.start_dll_append_~last~0#1.base|))) is different from false [2021-11-25 20:40:52,917 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_prenex_25 (Array Int Int)) (v_prenex_26 (Array Int Int))) (<= 0 (+ 4 (select (select (store (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4)) v_prenex_25) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_prenex_26) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))) (forall ((v_ArrVal_3350 (Array Int Int)) (v_ArrVal_3352 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|))) (= (select (select (store (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| .cse0) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4)) v_ArrVal_3350) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_3352) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) .cse0))) (forall ((v_ArrVal_3351 (Array Int Int)) (v_ArrVal_3353 (Array Int Int))) (let ((.cse1 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|))) (<= (select (select (store (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ .cse1 4)) v_ArrVal_3351) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_3353) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) .cse1)))) is different from false [2021-11-25 20:40:52,958 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_prenex_25 (Array Int Int)) (v_prenex_26 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4)) v_prenex_25) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_prenex_26) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (forall ((v_ArrVal_3350 (Array Int Int)) (v_ArrVal_3352 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|))) (= (select (select (store (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| .cse0) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4)) v_ArrVal_3350) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_3352) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) .cse0))) (forall ((v_ArrVal_3351 (Array Int Int)) (v_ArrVal_3353 (Array Int Int))) (let ((.cse1 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|))) (<= (select (select (store (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ .cse1 4)) v_ArrVal_3351) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_3353) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) .cse1)))) is different from false [2021-11-25 20:40:53,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [714562789] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:40:53,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [922876898] [2021-11-25 20:40:53,327 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2021-11-25 20:40:53,327 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:40:53,327 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:40:53,327 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:40:53,327 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:40:53,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:40:53,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:40:53,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:40:53,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:40:53,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:53,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:40:53,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:53,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:40:53,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:40:53,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:40:53,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:40:53,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:40:53,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:40:53,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:40:53,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:40:53,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:40:53,628 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:53,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2021-11-25 20:40:53,635 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:53,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,644 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:53,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:40:53,657 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:53,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,659 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:53,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 239 [2021-11-25 20:40:53,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 233 [2021-11-25 20:40:53,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 240 treesize of output 221 [2021-11-25 20:40:53,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:53,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:40:53,854 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-11-25 20:40:53,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 202 treesize of output 191 [2021-11-25 20:40:54,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:40:54,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:54,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 204 treesize of output 186 [2021-11-25 20:40:54,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 182 [2021-11-25 20:40:54,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:54,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 168 [2021-11-25 20:40:54,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:54,175 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-11-25 20:40:54,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 194 treesize of output 183 [2021-11-25 20:40:54,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:40:54,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:54,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:54,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 204 treesize of output 186 [2021-11-25 20:40:54,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:54,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 192 treesize of output 174 [2021-11-25 20:40:54,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 178 treesize of output 170 [2021-11-25 20:40:54,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:40:54,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:40:54,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:40:54,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:54,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:54,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:54,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:40:54,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:54,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:40:54,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:40:54,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:40:54,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-25 20:40:54,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-25 20:40:54,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:40:54,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:54,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:40:54,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-25 20:40:54,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:40:54,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:40:54,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:40:54,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:54,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:54,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:40:54,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:54,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:54,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:40:54,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:54,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:40:54,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:54,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:40:54,963 INFO L354 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2021-11-25 20:40:54,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 109 [2021-11-25 20:40:54,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:54,976 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:40:54,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 77 [2021-11-25 20:40:54,990 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:40:54,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2021-11-25 20:40:55,003 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:40:55,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:40:55,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:55,149 INFO L354 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2021-11-25 20:40:55,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 109 [2021-11-25 20:40:55,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:55,161 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:40:55,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 77 [2021-11-25 20:40:55,173 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:40:55,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:40:55,186 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:40:55,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2021-11-25 20:40:55,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:55,378 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:55,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 160 [2021-11-25 20:40:55,385 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:55,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:55,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:55,387 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:55,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:55,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 151 [2021-11-25 20:40:55,395 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:55,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:55,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:55,397 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:55,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:55,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 155 [2021-11-25 20:40:55,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:55,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:40:55,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:55,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 149 [2021-11-25 20:40:55,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:55,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 137 [2021-11-25 20:40:55,565 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:55,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 160 [2021-11-25 20:40:55,571 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:55,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:55,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:55,573 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:55,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:55,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 151 [2021-11-25 20:40:55,581 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:55,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:55,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:55,583 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:55,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:55,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 155 [2021-11-25 20:40:55,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:55,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 149 [2021-11-25 20:40:55,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:55,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 137 [2021-11-25 20:40:55,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:55,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:40:55,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:55,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:40:55,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:55,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:40:55,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:55,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:40:55,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:55,890 INFO L354 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2021-11-25 20:40:55,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 109 [2021-11-25 20:40:55,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:55,902 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:40:55,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 77 [2021-11-25 20:40:55,914 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:40:55,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:40:55,926 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:40:55,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2021-11-25 20:40:56,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:56,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:56,064 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:40:56,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 151 treesize of output 106 [2021-11-25 20:40:56,077 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-25 20:40:56,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 76 [2021-11-25 20:40:56,088 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:40:56,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:40:56,101 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:40:56,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2021-11-25 20:40:56,217 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:56,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 160 [2021-11-25 20:40:56,223 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:56,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:56,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:56,225 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:56,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:56,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 151 [2021-11-25 20:40:56,232 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:56,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:56,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:56,234 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:56,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:56,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 155 [2021-11-25 20:40:56,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:56,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:40:56,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:56,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 149 [2021-11-25 20:40:56,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:56,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 137 [2021-11-25 20:40:56,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:40:56,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:40:56,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:40:56,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:56,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:56,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:56,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:40:56,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:56,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:56,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:56,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:40:56,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:40:56,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:56,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:40:56,870 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-25 20:40:56,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2021-11-25 20:40:56,896 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-25 20:40:56,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:40:56,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:40:56,981 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 49 for LOIs [2021-11-25 20:40:57,314 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:41:08,048 WARN L227 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 105 DAG size of output: 91 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 20:41:10,886 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8376#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (or (< (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4) 0) (< (select |#length| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 8))) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~#s~0#1.base|) 1) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (or (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (and (= |ULTIMATE.start_dll_append_~last~0#1.offset| (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 4)) (= |ULTIMATE.start_dll_append_~last~0#1.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|))) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= (select |#valid| |ULTIMATE.start_dll_append_~new_last~0#1.base|) 1) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~count~0#1| 0) (<= (+ |ULTIMATE.start_main_~#s~0#1.offset| 4) (select |#length| |ULTIMATE.start_main_~#s~0#1.base|)) (<= (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 12) (select |#length| |ULTIMATE.start_dll_append_~new_last~0#1.base|)) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) (<= (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 8) (select |#length| |ULTIMATE.start_dll_append_~last~0#1.base|)) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= (select |#valid| |ULTIMATE.start_dll_append_~last~0#1.base|) 1) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8)) |ULTIMATE.start_dll_append_~last~0#1.base|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.base|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= |ULTIMATE.start_dll_append_~last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8))) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= |#NULL.base| 0))' at error location [2021-11-25 20:41:10,886 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:41:10,886 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:41:10,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 28] total 52 [2021-11-25 20:41:10,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163064393] [2021-11-25 20:41:10,886 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 20:41:10,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-11-25 20:41:10,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:41:10,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-11-25 20:41:10,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=5713, Unknown=8, NotChecked=942, Total=6972 [2021-11-25 20:41:10,888 INFO L87 Difference]: Start difference. First operand 114 states and 132 transitions. Second operand has 53 states, 45 states have (on average 1.9333333333333333) internal successors, (87), 45 states have internal predecessors, (87), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2021-11-25 20:41:14,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:41:14,415 INFO L93 Difference]: Finished difference Result 229 states and 263 transitions. [2021-11-25 20:41:14,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-25 20:41:14,416 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 45 states have (on average 1.9333333333333333) internal successors, (87), 45 states have internal predecessors, (87), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 50 [2021-11-25 20:41:14,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:41:14,417 INFO L225 Difference]: With dead ends: 229 [2021-11-25 20:41:14,417 INFO L226 Difference]: Without dead ends: 229 [2021-11-25 20:41:14,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 55 SyntacticMatches, 3 SemanticMatches, 105 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 2853 ImplicationChecksByTransitivity, 18.1s TimeCoverageRelationStatistics Valid=618, Invalid=9498, Unknown=8, NotChecked=1218, Total=11342 [2021-11-25 20:41:14,418 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 1264 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 2146 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 2441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 2146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 178 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:41:14,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1264 Valid, 1440 Invalid, 2441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 2146 Invalid, 0 Unknown, 178 Unchecked, 1.4s Time] [2021-11-25 20:41:14,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-11-25 20:41:14,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 113. [2021-11-25 20:41:14,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 90 states have (on average 1.3222222222222222) internal successors, (119), 105 states have internal predecessors, (119), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:41:14,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 129 transitions. [2021-11-25 20:41:14,423 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 129 transitions. Word has length 50 [2021-11-25 20:41:14,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:41:14,424 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 129 transitions. [2021-11-25 20:41:14,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 45 states have (on average 1.9333333333333333) internal successors, (87), 45 states have internal predecessors, (87), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2021-11-25 20:41:14,424 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 129 transitions. [2021-11-25 20:41:14,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-25 20:41:14,425 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:41:14,425 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:41:14,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-25 20:41:14,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-11-25 20:41:14,635 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:41:14,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:41:14,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1889586045, now seen corresponding path program 1 times [2021-11-25 20:41:14,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:41:14,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296570852] [2021-11-25 20:41:14,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:41:14,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:41:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:41:15,691 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:41:15,691 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:41:15,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296570852] [2021-11-25 20:41:15,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296570852] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:41:15,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500433473] [2021-11-25 20:41:15,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:41:15,692 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:41:15,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:41:15,692 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:41:15,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-25 20:41:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:41:15,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 95 conjunts are in the unsatisfiable core [2021-11-25 20:41:15,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:41:15,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:41:16,281 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:41:16,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-25 20:41:16,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:16,499 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:41:16,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2021-11-25 20:41:16,710 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:41:16,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 22 [2021-11-25 20:41:16,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:41:16,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:16,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:41:16,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:16,888 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:41:16,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 49 [2021-11-25 20:41:16,901 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-25 20:41:16,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:41:17,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 20:41:17,070 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:41:17,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 15 [2021-11-25 20:41:17,107 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:41:17,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:41:17,256 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3591 (Array Int Int)) (v_ArrVal_3592 (Array Int Int)) (|v_ULTIMATE.start_dll_append_#t~ret7#1.base_62| Int)) (or (<= |c_#StackHeapBarrier| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_62|) (not (= (select |c_#valid| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_62|) 0)) (not (= 0 (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_62| v_ArrVal_3591))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|))) (+ (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_62| v_ArrVal_3592) |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4)))))) is different from false [2021-11-25 20:41:17,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500433473] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:41:17,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [683439028] [2021-11-25 20:41:17,259 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2021-11-25 20:41:17,259 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:41:17,259 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:41:17,259 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:41:17,259 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:41:17,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:41:17,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:41:17,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:41:17,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:41:17,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:17,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:17,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:41:17,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:17,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:41:17,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:17,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:41:17,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:41:17,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:41:17,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:41:17,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:41:17,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:41:17,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:41:17,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:41:17,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:41:17,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,525 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:41:17,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:41:17,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,536 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:41:17,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:41:17,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:41:17,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,595 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:41:17,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:41:17,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:41:17,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:41:17,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:41:17,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:41:17,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:17,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,674 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:41:17,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:41:17,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:17,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:41:17,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:41:17,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:41:17,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:41:17,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:41:17,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:41:17,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:41:17,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:17,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:17,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:41:17,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:41:17,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:17,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:17,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:41:17,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:41:17,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:41:17,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:17,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:41:17,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:17,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:41:17,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:17,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:17,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:18,134 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:41:18,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:41:18,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:41:18,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:18,248 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:41:18,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 33 [2021-11-25 20:41:18,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:41:18,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:41:18,943 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:41:18,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:41:19,049 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:41:19,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:41:19,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:41:19,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:19,153 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:41:19,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2021-11-25 20:41:19,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:41:19,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:41:19,905 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:41:19,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:41:19,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:41:20,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:20,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:20,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:20,122 INFO L354 Elim1Store]: treesize reduction 124, result has 26.2 percent of original size [2021-11-25 20:41:20,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 65 treesize of output 78 [2021-11-25 20:41:20,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:20,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:20,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:20,166 INFO L354 Elim1Store]: treesize reduction 142, result has 15.5 percent of original size [2021-11-25 20:41:20,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 65 treesize of output 60 [2021-11-25 20:41:20,200 INFO L354 Elim1Store]: treesize reduction 25, result has 40.5 percent of original size [2021-11-25 20:41:20,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 21 [2021-11-25 20:41:20,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:20,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:20,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:20,288 INFO L354 Elim1Store]: treesize reduction 66, result has 26.7 percent of original size [2021-11-25 20:41:20,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 83 treesize of output 92 [2021-11-25 20:41:20,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:20,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:20,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:20,324 INFO L354 Elim1Store]: treesize reduction 71, result has 21.1 percent of original size [2021-11-25 20:41:20,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 70 [2021-11-25 20:41:20,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:20,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 21 [2021-11-25 20:41:20,772 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:41:20,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:41:20,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:41:20,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:20,878 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:41:20,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 33 [2021-11-25 20:41:20,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:41:21,709 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:41:21,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 152 treesize of output 198 [2021-11-25 20:41:21,813 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:41:21,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 45 [2021-11-25 20:41:21,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:41:22,398 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 1 for LOIs [2021-11-25 20:41:22,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:41:22,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:41:22,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:22,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:22,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:41:22,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:22,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:22,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:41:22,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:22,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:22,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:41:22,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:22,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:22,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:22,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:41:22,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:22,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:22,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:22,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:41:22,468 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:41:29,869 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9029#(and (<= |ULTIMATE.start_main_~uneq~0#1| 5) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |#NULL.base|) (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= 5 |ULTIMATE.start_main_~uneq~0#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (= (select |#valid| |ULTIMATE.start_main_~ptr~0#1.base|) 1) (<= (+ |ULTIMATE.start_main_~ptr~0#1.offset| 8) (select |#length| |ULTIMATE.start_main_~ptr~0#1.base|)) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~#s~0#1.base|) 1) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~count~0#1| 0) (<= (+ |ULTIMATE.start_main_~#s~0#1.offset| 4) (select |#length| |ULTIMATE.start_main_~#s~0#1.base|)) (<= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (<= 0 (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) (<= |#NULL.base| 0) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#NULL.offset|) (<= 1 |ULTIMATE.start_main_~data~0#1|) (<= 0 |ULTIMATE.start_dll_create_~new_head~0#1.offset|) (<= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) 0))' at error location [2021-11-25 20:41:29,870 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:41:29,870 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:41:29,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 25] total 47 [2021-11-25 20:41:29,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875826875] [2021-11-25 20:41:29,870 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 20:41:29,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-11-25 20:41:29,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:41:29,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-11-25 20:41:29,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=4964, Unknown=1, NotChecked=142, Total=5402 [2021-11-25 20:41:29,872 INFO L87 Difference]: Start difference. First operand 113 states and 129 transitions. Second operand has 47 states, 39 states have (on average 1.9487179487179487) internal successors, (76), 39 states have internal predecessors, (76), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:41:31,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:41:31,049 INFO L93 Difference]: Finished difference Result 106 states and 119 transitions. [2021-11-25 20:41:31,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-25 20:41:31,049 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 39 states have (on average 1.9487179487179487) internal successors, (76), 39 states have internal predecessors, (76), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 50 [2021-11-25 20:41:31,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:41:31,050 INFO L225 Difference]: With dead ends: 106 [2021-11-25 20:41:31,050 INFO L226 Difference]: Without dead ends: 106 [2021-11-25 20:41:31,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 65 SyntacticMatches, 6 SemanticMatches, 88 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2749 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=468, Invalid=7367, Unknown=1, NotChecked=174, Total=8010 [2021-11-25 20:41:31,052 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 35 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 79 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:41:31,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 814 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 812 Invalid, 0 Unknown, 79 Unchecked, 0.5s Time] [2021-11-25 20:41:31,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-11-25 20:41:31,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2021-11-25 20:41:31,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 83 states have (on average 1.3132530120481927) internal successors, (109), 98 states have internal predecessors, (109), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:41:31,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 119 transitions. [2021-11-25 20:41:31,057 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 119 transitions. Word has length 50 [2021-11-25 20:41:31,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:41:31,057 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 119 transitions. [2021-11-25 20:41:31,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 39 states have (on average 1.9487179487179487) internal successors, (76), 39 states have internal predecessors, (76), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:41:31,058 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 119 transitions. [2021-11-25 20:41:31,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-25 20:41:31,058 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:41:31,058 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:41:31,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-25 20:41:31,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:41:31,276 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:41:31,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:41:31,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1625274531, now seen corresponding path program 1 times [2021-11-25 20:41:31,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:41:31,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111725696] [2021-11-25 20:41:31,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:41:31,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:41:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:41:32,760 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 20:41:32,761 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:41:32,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111725696] [2021-11-25 20:41:32,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111725696] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:41:32,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801749240] [2021-11-25 20:41:32,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:41:32,761 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:41:32,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:41:32,762 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:41:32,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-25 20:41:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:41:33,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 112 conjunts are in the unsatisfiable core [2021-11-25 20:41:33,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:41:33,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:41:33,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:41:33,165 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:41:33,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:41:33,464 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:41:33,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:41:33,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:33,754 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:41:33,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 42 [2021-11-25 20:41:33,987 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:41:33,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 21 [2021-11-25 20:41:33,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:41:34,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:34,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:41:34,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:34,210 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:41:34,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 48 [2021-11-25 20:41:34,217 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-25 20:41:34,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-25 20:41:34,715 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-25 20:41:34,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 72 [2021-11-25 20:41:34,724 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:41:34,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 20:41:34,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:34,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:41:34,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:34,819 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:41:34,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 47 [2021-11-25 20:41:34,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 20:41:34,973 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:41:34,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 19 [2021-11-25 20:41:34,978 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:41:34,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:41:35,084 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3813 (Array Int Int)) (v_ArrVal_3814 (Array Int Int))) (not (= (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_3813))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_3814) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)) 0))) is different from false [2021-11-25 20:41:35,090 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3811 (Array Int Int)) (v_ArrVal_3812 (Array Int Int)) (v_ArrVal_3813 (Array Int Int)) (v_ArrVal_3814 (Array Int Int))) (not (= (select (let ((.cse0 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_3812) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_3813))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_3811) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_3814) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)) 0))) is different from false [2021-11-25 20:41:35,103 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3811 (Array Int Int)) (v_ArrVal_3812 (Array Int Int)) (v_ArrVal_3813 (Array Int Int)) (v_ArrVal_3814 (Array Int Int))) (not (= (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4)))) (select (let ((.cse0 (store (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_3812) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_3813))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_3811) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_3814) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) 0))) is different from false [2021-11-25 20:41:35,117 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3811 (Array Int Int)) (v_ArrVal_3812 (Array Int Int)) (v_ArrVal_3813 (Array Int Int)) (v_ArrVal_3814 (Array Int Int))) (not (= (let ((.cse1 (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4)))) (select (let ((.cse0 (store (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_3812) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_3813))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ 4 (select (select (store (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_3811) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_3814) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))) 0))) is different from false [2021-11-25 20:41:35,131 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3811 (Array Int Int)) (v_ArrVal_3812 (Array Int Int)) (v_ArrVal_3813 (Array Int Int)) (v_ArrVal_3814 (Array Int Int))) (not (= (let ((.cse1 (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4)))) (select (let ((.cse0 (store (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_3812) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_3813))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_3811) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_3814) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) 0))) is different from false [2021-11-25 20:41:35,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801749240] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:41:35,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1607732790] [2021-11-25 20:41:35,355 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2021-11-25 20:41:35,355 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:41:35,355 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:41:35,355 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:41:35,355 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:41:35,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:41:35,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:41:35,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:41:35,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:41:35,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:41:35,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:35,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:35,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:35,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:41:35,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:35,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:41:35,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:41:35,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:41:35,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:41:35,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:41:35,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:41:35,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:41:35,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:41:35,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:41:35,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,631 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:41:35,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:41:35,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:41:35,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,652 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:41:35,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:41:35,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,727 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:41:35,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:41:35,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:41:35,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:41:35,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:41:35,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:35,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:41:35,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,811 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:41:35,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:41:35,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:41:35,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:35,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:41:35,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:41:35,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:41:35,956 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:41:35,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2021-11-25 20:41:35,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:41:35,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:35,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:41:36,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:36,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:41:36,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:36,037 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:41:36,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 231 [2021-11-25 20:41:36,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:36,046 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:41:36,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 223 [2021-11-25 20:41:36,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:36,125 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:41:36,137 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 20:41:36,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 225 treesize of output 227 [2021-11-25 20:41:36,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:36,148 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:41:36,157 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:41:36,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 217 treesize of output 215 [2021-11-25 20:41:36,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:36,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:41:36,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:41:36,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:41:36,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:41:36,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:36,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:36,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:41:36,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:36,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:36,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:36,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:36,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:41:36,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:36,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:36,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:41:36,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:41:36,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:41:36,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:36,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:36,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:41:36,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:36,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:36,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:41:36,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:36,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:36,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:36,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:36,652 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:41:36,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:41:36,738 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:41:36,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2021-11-25 20:41:36,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:41:36,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:41:36,834 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:41:36,919 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:41:36,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:41:37,005 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:41:37,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2021-11-25 20:41:37,042 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:41:37,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:41:37,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:41:37,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:41:37,158 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:41:37,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:41:37,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:41:37,483 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:41:37,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:41:37,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:41:37,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:41:37,743 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-25 20:41:37,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2021-11-25 20:41:37,765 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-25 20:41:37,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:37,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:41:37,935 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:41:37,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:41:38,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:41:38,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:41:38,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:38,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:38,075 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:41:38,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2021-11-25 20:41:38,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:41:39,461 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:41:39,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 152 treesize of output 198 [2021-11-25 20:41:39,678 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:41:39,688 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:41:39,708 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 20:41:39,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 67 [2021-11-25 20:41:39,728 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:41:39,741 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:41:39,799 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 15 for LOIs [2021-11-25 20:41:39,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:41:39,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:41:39,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:39,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:39,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:41:39,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:39,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:39,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:39,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:39,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:41:39,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:39,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:39,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:39,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:41:39,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:41:39,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:39,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:39,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:39,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:41:39,892 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:41:46,347 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9568#(and (= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (= (select |#valid| |ULTIMATE.start_main_~ptr~0#1.base|) 1) (<= (+ |ULTIMATE.start_main_~ptr~0#1.offset| 8) (select |#length| |ULTIMATE.start_main_~ptr~0#1.base|)) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~#s~0#1.base|) 1) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (or (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (and (= |ULTIMATE.start_dll_append_~last~0#1.offset| (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 4)) (= |ULTIMATE.start_dll_append_~last~0#1.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|))) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= (select |#valid| |ULTIMATE.start_dll_append_~new_last~0#1.base|) 1) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~count~0#1| 0) (<= (+ |ULTIMATE.start_main_~#s~0#1.offset| 4) (select |#length| |ULTIMATE.start_main_~#s~0#1.base|)) (<= (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 12) (select |#length| |ULTIMATE.start_dll_append_~new_last~0#1.base|)) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) (<= (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 8) (select |#length| |ULTIMATE.start_dll_append_~last~0#1.base|)) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= (select |#valid| |ULTIMATE.start_dll_append_~last~0#1.base|) 1) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8)) |ULTIMATE.start_dll_append_~last~0#1.base|) (= |#NULL.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.base|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= |ULTIMATE.start_dll_append_~last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8))) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) 0) (= |#NULL.base| 0))' at error location [2021-11-25 20:41:46,348 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:41:46,348 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:41:46,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 30] total 52 [2021-11-25 20:41:46,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886329822] [2021-11-25 20:41:46,348 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 20:41:46,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-11-25 20:41:46,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:41:46,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-11-25 20:41:46,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=6356, Unknown=7, NotChecked=820, Total=7482 [2021-11-25 20:41:46,349 INFO L87 Difference]: Start difference. First operand 106 states and 119 transitions. Second operand has 53 states, 46 states have (on average 1.7391304347826086) internal successors, (80), 44 states have internal predecessors, (80), 6 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:41:47,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:41:47,938 INFO L93 Difference]: Finished difference Result 113 states and 127 transitions. [2021-11-25 20:41:47,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-25 20:41:47,939 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 46 states have (on average 1.7391304347826086) internal successors, (80), 44 states have internal predecessors, (80), 6 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 53 [2021-11-25 20:41:47,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:41:47,940 INFO L225 Difference]: With dead ends: 113 [2021-11-25 20:41:47,940 INFO L226 Difference]: Without dead ends: 113 [2021-11-25 20:41:47,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 68 SyntacticMatches, 5 SemanticMatches, 101 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 2300 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=442, Invalid=9077, Unknown=7, NotChecked=980, Total=10506 [2021-11-25 20:41:47,941 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 47 mSDsluCounter, 1069 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 87 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:41:47,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 1078 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1253 Invalid, 0 Unknown, 87 Unchecked, 0.7s Time] [2021-11-25 20:41:47,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-11-25 20:41:47,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 112. [2021-11-25 20:41:47,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 89 states have (on average 1.2921348314606742) internal successors, (115), 104 states have internal predecessors, (115), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:41:47,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 125 transitions. [2021-11-25 20:41:47,945 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 125 transitions. Word has length 53 [2021-11-25 20:41:47,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:41:47,945 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 125 transitions. [2021-11-25 20:41:47,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 46 states have (on average 1.7391304347826086) internal successors, (80), 44 states have internal predecessors, (80), 6 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:41:47,946 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 125 transitions. [2021-11-25 20:41:47,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-25 20:41:47,947 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:41:47,947 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:41:47,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-25 20:41:48,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-11-25 20:41:48,171 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:41:48,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:41:48,171 INFO L85 PathProgramCache]: Analyzing trace with hash 292969208, now seen corresponding path program 1 times [2021-11-25 20:41:48,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:41:48,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978320840] [2021-11-25 20:41:48,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:41:48,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:41:48,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:41:48,244 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-25 20:41:48,244 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:41:48,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978320840] [2021-11-25 20:41:48,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978320840] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:41:48,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:41:48,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:41:48,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566803538] [2021-11-25 20:41:48,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:41:48,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:41:48,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:41:48,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:41:48,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:41:48,247 INFO L87 Difference]: Start difference. First operand 112 states and 125 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 20:41:48,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:41:48,334 INFO L93 Difference]: Finished difference Result 113 states and 124 transitions. [2021-11-25 20:41:48,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:41:48,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 56 [2021-11-25 20:41:48,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:41:48,336 INFO L225 Difference]: With dead ends: 113 [2021-11-25 20:41:48,336 INFO L226 Difference]: Without dead ends: 113 [2021-11-25 20:41:48,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:41:48,337 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 5 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:41:48,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 184 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:41:48,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-11-25 20:41:48,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111. [2021-11-25 20:41:48,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 88 states have (on average 1.2840909090909092) internal successors, (113), 103 states have internal predecessors, (113), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:41:48,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 123 transitions. [2021-11-25 20:41:48,341 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 123 transitions. Word has length 56 [2021-11-25 20:41:48,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:41:48,341 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 123 transitions. [2021-11-25 20:41:48,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 20:41:48,341 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 123 transitions. [2021-11-25 20:41:48,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-25 20:41:48,342 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:41:48,342 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:41:48,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-25 20:41:48,342 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:41:48,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:41:48,343 INFO L85 PathProgramCache]: Analyzing trace with hash 293013910, now seen corresponding path program 1 times [2021-11-25 20:41:48,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:41:48,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605350944] [2021-11-25 20:41:48,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:41:48,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:41:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:41:50,971 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:41:50,971 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:41:50,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605350944] [2021-11-25 20:41:50,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605350944] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:41:50,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996301007] [2021-11-25 20:41:50,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:41:50,973 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:41:50,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:41:50,974 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:41:50,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-25 20:41:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:41:51,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 129 conjunts are in the unsatisfiable core [2021-11-25 20:41:51,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:41:51,623 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:41:51,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:41:51,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:41:51,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:51,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:41:51,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:51,991 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:41:51,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 36 [2021-11-25 20:41:51,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-25 20:41:52,270 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:41:52,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 27 [2021-11-25 20:41:52,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:41:52,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:41:52,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:41:52,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:52,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:41:52,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:52,550 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:41:52,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 58 [2021-11-25 20:41:52,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:52,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-11-25 20:41:52,564 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-25 20:41:52,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-25 20:41:53,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:53,365 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:41:53,409 INFO L354 Elim1Store]: treesize reduction 142, result has 21.5 percent of original size [2021-11-25 20:41:53,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 178 treesize of output 100 [2021-11-25 20:41:53,422 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-25 20:41:53,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 70 [2021-11-25 20:41:53,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:53,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:41:53,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:53,541 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:41:53,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 57 [2021-11-25 20:41:53,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-11-25 20:41:53,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:53,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:41:53,655 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:41:53,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 27 [2021-11-25 20:41:53,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 20:41:53,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 20:41:53,813 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:41:53,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:41:53,834 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4159 (Array Int Int)) (v_ArrVal_4160 (Array Int Int)) (v_ArrVal_4161 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4160) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4159) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4161) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) |c_ULTIMATE.start_main_~data~0#1|)) is different from false [2021-11-25 20:41:53,841 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4154 (Array Int Int)) (v_ArrVal_4159 (Array Int Int)) (v_ArrVal_4157 Int) (v_ArrVal_4155 Int) (v_ArrVal_4160 (Array Int Int)) (v_ArrVal_4161 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse0 (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4))) (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_4154) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4160) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse0 v_ArrVal_4155)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4159) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse0 v_ArrVal_4157)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4161) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))) is different from false [2021-11-25 20:41:55,188 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4154 (Array Int Int)) (|v_ULTIMATE.start_dll_append_~last~0#1.offset_64| Int) (v_ArrVal_4159 (Array Int Int)) (v_ArrVal_4157 Int) (v_ArrVal_4155 Int) (v_ArrVal_4160 (Array Int Int)) (v_ArrVal_4161 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4)))) (let ((.cse1 (select |c_#memory_$Pointer$.base| .cse0)) (.cse2 (+ |v_ULTIMATE.start_dll_append_~last~0#1.offset_64| 4))) (or (= (select (select (store (store |c_#memory_int| .cse0 v_ArrVal_4154) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4160) (select (select (store (store |c_#memory_$Pointer$.base| .cse0 (store .cse1 .cse2 v_ArrVal_4155)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4159) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 (store (select |c_#memory_$Pointer$.offset| .cse0) .cse2 v_ArrVal_4157)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4161) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) |c_ULTIMATE.start_main_~data~0#1|) (not (= (select .cse1 .cse2) 0)))))) is different from false [2021-11-25 20:41:55,242 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4154 (Array Int Int)) (|v_ULTIMATE.start_dll_append_~last~0#1.offset_64| Int) (v_ArrVal_4159 (Array Int Int)) (v_ArrVal_4157 Int) (v_ArrVal_4155 Int) (v_ArrVal_4160 (Array Int Int)) (v_ArrVal_4161 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4)))) (let ((.cse1 (select |c_#memory_$Pointer$.base| .cse0)) (.cse2 (+ |v_ULTIMATE.start_dll_append_~last~0#1.offset_64| 4))) (or (= (select (select (store (store |c_#memory_int| .cse0 v_ArrVal_4154) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4160) (select (select (store (store |c_#memory_$Pointer$.base| .cse0 (store .cse1 .cse2 v_ArrVal_4155)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4159) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 (store (select |c_#memory_$Pointer$.offset| .cse0) .cse2 v_ArrVal_4157)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4161) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) |c_ULTIMATE.start_main_~data~0#1|) (not (= (select .cse1 .cse2) 0)))))) is different from false [2021-11-25 20:41:56,246 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4174 (Array Int Int)) (v_ArrVal_4175 (Array Int Int)) (v_ArrVal_4176 (Array Int Int)) (v_ArrVal_4154 (Array Int Int)) (|v_ULTIMATE.start_dll_append_~last~0#1.offset_64| Int) (v_ArrVal_4159 (Array Int Int)) (v_ArrVal_4157 Int) (v_ArrVal_4155 Int) (v_ArrVal_4160 (Array Int Int)) (v_ArrVal_4161 (Array Int Int)) (|v_ULTIMATE.start_dll_append_#t~ret7#1.base_72| Int)) (let ((.cse3 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_72| v_ArrVal_4176)) (.cse4 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_72| v_ArrVal_4175))) (let ((.cse2 (select (select .cse3 (select (select .cse3 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select .cse4 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4)))) (let ((.cse0 (select .cse3 .cse2)) (.cse1 (+ |v_ULTIMATE.start_dll_append_~last~0#1.offset_64| 4))) (or (not (= (select .cse0 .cse1) 0)) (<= |c_#StackHeapBarrier| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_72|) (= (select (select (store (store (store |c_#memory_int| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_72| v_ArrVal_4174) .cse2 v_ArrVal_4154) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_72| v_ArrVal_4160) (select (select (store (store .cse3 .cse2 (store .cse0 .cse1 v_ArrVal_4155)) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_72| v_ArrVal_4159) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store .cse4 .cse2 (store (select .cse4 .cse2) .cse1 v_ArrVal_4157)) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_72| v_ArrVal_4161) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) |c_ULTIMATE.start_main_~data~0#1|) (not (= (select |c_#valid| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_72|) 0))))))) is different from false [2021-11-25 20:41:56,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996301007] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:41:56,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [486212320] [2021-11-25 20:41:56,250 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2021-11-25 20:41:56,250 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:41:56,250 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:41:56,250 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:41:56,250 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:41:56,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:41:56,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:41:56,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:41:56,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:41:56,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:56,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:56,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:41:56,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:41:56,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:56,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:56,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:41:56,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:41:56,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:41:56,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:41:56,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:41:56,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:41:56,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:41:56,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:41:56,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:41:56,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,505 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:41:56,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:41:56,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,517 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:41:56,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:41:56,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:41:56,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,573 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:41:56,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:41:56,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:41:56,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:41:56,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:41:56,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:56,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:41:56,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,692 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:41:56,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:41:56,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:41:56,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:56,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:41:56,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:41:56,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:41:56,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:41:56,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:41:56,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:41:56,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:41:56,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:56,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:56,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:41:56,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:56,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:56,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:57,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:41:57,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:41:57,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:41:57,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:57,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:41:57,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:57,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:57,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:57,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:41:57,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:57,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:57,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:57,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:57,406 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:41:57,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:41:57,582 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:41:57,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 79 [2021-11-25 20:41:57,670 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:41:57,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:41:57,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:41:57,779 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:41:57,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:41:57,877 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:41:57,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 34 [2021-11-25 20:41:57,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:41:57,937 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:41:57,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:41:58,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:41:58,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:41:58,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:41:58,225 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-25 20:41:58,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:58,252 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-25 20:41:58,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2021-11-25 20:41:58,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:41:58,480 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:41:58,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:41:58,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:41:58,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:41:58,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:41:58,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:58,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:58,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:58,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-11-25 20:41:59,655 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:41:59,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 152 treesize of output 198 [2021-11-25 20:41:59,701 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:41:59,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 45 [2021-11-25 20:41:59,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:41:59,908 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 15 for LOIs [2021-11-25 20:41:59,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:41:59,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:41:59,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:59,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:41:59,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:41:59,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:59,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:59,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:41:59,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:59,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:41:59,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:41:59,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:59,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:59,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:59,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:41:59,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:59,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:59,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:59,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:41:59,988 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:42:07,852 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10373#(and (= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (= (select |#valid| |ULTIMATE.start_main_~ptr~0#1.base|) 1) (<= (+ |ULTIMATE.start_main_~ptr~0#1.offset| 8) (select |#length| |ULTIMATE.start_main_~ptr~0#1.base|)) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~#s~0#1.base|) 1) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (or (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (and (= |ULTIMATE.start_dll_append_~last~0#1.offset| (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 4)) (= |ULTIMATE.start_dll_append_~last~0#1.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|))) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= (select |#valid| |ULTIMATE.start_dll_append_~new_last~0#1.base|) 1) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~count~0#1| 0) (<= (+ |ULTIMATE.start_main_~#s~0#1.offset| 4) (select |#length| |ULTIMATE.start_main_~#s~0#1.base|)) (<= (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 12) (select |#length| |ULTIMATE.start_dll_append_~new_last~0#1.base|)) (not (= |ULTIMATE.start_main_~data~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) |ULTIMATE.start_main_~ptr~0#1.offset|))) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) 0))) (<= (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 8) (select |#length| |ULTIMATE.start_dll_append_~last~0#1.base|)) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= (select |#valid| |ULTIMATE.start_dll_append_~last~0#1.base|) 1) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8)) |ULTIMATE.start_dll_append_~last~0#1.base|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.base|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= |ULTIMATE.start_dll_append_~last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8))) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~ptr~0#1.offset|))' at error location [2021-11-25 20:42:07,852 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:42:07,852 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:42:07,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 29] total 55 [2021-11-25 20:42:07,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067761239] [2021-11-25 20:42:07,852 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 20:42:07,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2021-11-25 20:42:07,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:42:07,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-11-25 20:42:07,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=7174, Unknown=7, NotChecked=870, Total=8372 [2021-11-25 20:42:07,854 INFO L87 Difference]: Start difference. First operand 111 states and 123 transitions. Second operand has 55 states, 48 states have (on average 1.9791666666666667) internal successors, (95), 48 states have internal predecessors, (95), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:42:11,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:42:11,046 INFO L93 Difference]: Finished difference Result 163 states and 180 transitions. [2021-11-25 20:42:11,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-25 20:42:11,046 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 48 states have (on average 1.9791666666666667) internal successors, (95), 48 states have internal predecessors, (95), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 56 [2021-11-25 20:42:11,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:42:11,047 INFO L225 Difference]: With dead ends: 163 [2021-11-25 20:42:11,047 INFO L226 Difference]: Without dead ends: 163 [2021-11-25 20:42:11,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 70 SyntacticMatches, 5 SemanticMatches, 112 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 3236 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=571, Invalid=11214, Unknown=7, NotChecked=1090, Total=12882 [2021-11-25 20:42:11,049 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 290 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 1878 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 2003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 53 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:42:11,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 1557 Invalid, 2003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1878 Invalid, 0 Unknown, 53 Unchecked, 1.3s Time] [2021-11-25 20:42:11,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-11-25 20:42:11,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 120. [2021-11-25 20:42:11,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 97 states have (on average 1.268041237113402) internal successors, (123), 112 states have internal predecessors, (123), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:42:11,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 133 transitions. [2021-11-25 20:42:11,054 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 133 transitions. Word has length 56 [2021-11-25 20:42:11,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:42:11,054 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 133 transitions. [2021-11-25 20:42:11,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 48 states have (on average 1.9791666666666667) internal successors, (95), 48 states have internal predecessors, (95), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:42:11,055 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 133 transitions. [2021-11-25 20:42:11,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-25 20:42:11,055 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:42:11,055 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:42:11,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2021-11-25 20:42:11,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-25 20:42:11,259 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:42:11,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:42:11,259 INFO L85 PathProgramCache]: Analyzing trace with hash 493499783, now seen corresponding path program 1 times [2021-11-25 20:42:11,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:42:11,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241558586] [2021-11-25 20:42:11,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:42:11,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:42:11,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:42:13,336 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:42:13,337 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:42:13,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241558586] [2021-11-25 20:42:13,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241558586] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:42:13,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425704719] [2021-11-25 20:42:13,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:42:13,337 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:42:13,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:42:13,338 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:42:13,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-25 20:42:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:42:13,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 129 conjunts are in the unsatisfiable core [2021-11-25 20:42:13,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:42:13,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:42:13,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:42:13,830 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:42:13,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-25 20:42:14,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:42:14,286 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:42:14,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-11-25 20:42:14,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:42:14,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:42:14,643 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:42:14,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 70 [2021-11-25 20:42:14,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 41 [2021-11-25 20:42:14,992 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:42:14,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 44 [2021-11-25 20:42:14,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-11-25 20:42:15,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:42:15,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:15,268 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:42:15,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 99 treesize of output 79 [2021-11-25 20:42:15,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:15,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:15,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2021-11-25 20:42:15,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:15,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2021-11-25 20:42:15,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:15,295 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-25 20:42:15,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 33 [2021-11-25 20:42:16,013 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-25 20:42:16,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 102 [2021-11-25 20:42:16,028 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-25 20:42:16,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 62 [2021-11-25 20:42:16,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:16,151 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:42:16,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 97 treesize of output 77 [2021-11-25 20:42:16,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:16,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2021-11-25 20:42:16,597 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:42:16,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:16,600 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:42:16,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 49 [2021-11-25 20:42:16,607 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-11-25 20:42:16,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 23 [2021-11-25 20:42:16,669 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:42:16,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:42:17,264 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~ptr~0#1.offset_31| Int) (v_ArrVal_4403 (Array Int Int))) (or (< |v_ULTIMATE.start_main_~ptr~0#1.offset_31| 0) (< (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4403) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_31|) (and (forall ((v_ArrVal_4404 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4403) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4404) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_31| 4)) 4))) (forall ((v_ArrVal_4404 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4404))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse1 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_31| 4))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4403) .cse0) .cse1) 8) (select |c_#length| (select (select .cse2 .cse0) .cse1))))))))) is different from false [2021-11-25 20:42:17,363 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~ptr~0#1.offset_31| Int) (v_ArrVal_4401 (Array Int Int)) (v_ArrVal_4403 (Array Int Int))) (or (< |v_ULTIMATE.start_main_~ptr~0#1.offset_31| 0) (and (forall ((v_ArrVal_4402 (Array Int Int)) (v_ArrVal_4404 (Array Int Int))) (let ((.cse2 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_4402) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4404))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse1 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_31| 4))) (<= (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_4401) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4403) .cse0) .cse1) 8) (select |c_#length| (select (select .cse2 .cse0) .cse1)))))) (forall ((v_ArrVal_4402 (Array Int Int)) (v_ArrVal_4404 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_4401) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4403) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_4402) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4404) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_31| 4)) 4)))) (< (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_4401) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4403) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_31|))) is different from false [2021-11-25 20:42:17,585 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~ptr~0#1.offset_31| Int) (v_ArrVal_4401 (Array Int Int)) (v_ArrVal_4403 (Array Int Int))) (or (< |v_ULTIMATE.start_main_~ptr~0#1.offset_31| 0) (< (select (select (store (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4)) v_ArrVal_4401) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4403) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_31|) (and (forall ((v_ArrVal_4402 (Array Int Int)) (v_ArrVal_4404 (Array Int Int))) (<= 0 (+ (select (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4)))) (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_4401) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4403) (select (select (store (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_4402) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4404) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_31| 4)) 4))) (forall ((v_ArrVal_4402 (Array Int Int)) (v_ArrVal_4404 (Array Int Int))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4)))) (let ((.cse4 (store (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_4402) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4404))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse3 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_31| 4))) (<= (+ (select (select (store (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_4401) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4403) .cse2) .cse3) 8) (select |c_#length| (select (select .cse4 .cse2) .cse3)))))))))) is different from false [2021-11-25 20:42:17,852 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~ptr~0#1.offset_31| Int) (v_ArrVal_4401 (Array Int Int)) (v_ArrVal_4403 (Array Int Int))) (or (< |v_ULTIMATE.start_main_~ptr~0#1.offset_31| 0) (< (select (select (store (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4)) v_ArrVal_4401) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4403) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_31|) (and (forall ((v_ArrVal_4402 (Array Int Int)) (v_ArrVal_4404 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4)))) (let ((.cse3 (store (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_4402) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4404))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse2 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_31| 4))) (<= (+ (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_4401) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4403) .cse1) .cse2) 8) (select |c_#length| (select (select .cse3 .cse1) .cse2))))))) (forall ((v_ArrVal_4402 (Array Int Int)) (v_ArrVal_4404 (Array Int Int))) (<= 0 (+ (select (let ((.cse4 (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4)))) (select (store (store |c_#memory_$Pointer$.offset| .cse4 v_ArrVal_4401) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4403) (select (select (store (store |c_#memory_$Pointer$.base| .cse4 v_ArrVal_4402) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4404) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_31| 4)) 4)))))) is different from false [2021-11-25 20:42:18,084 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~ptr~0#1.offset_31| Int) (v_ArrVal_4401 (Array Int Int)) (v_ArrVal_4403 (Array Int Int))) (or (< |v_ULTIMATE.start_main_~ptr~0#1.offset_31| 0) (and (forall ((v_ArrVal_4402 (Array Int Int)) (v_ArrVal_4404 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4)))) (let ((.cse3 (store (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_4402) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_4404))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse2 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_31| 4))) (<= (+ 8 (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_4401) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_4403) .cse1) .cse2)) (select |c_#length| (select (select .cse3 .cse1) .cse2))))))) (forall ((v_ArrVal_4402 (Array Int Int)) (v_ArrVal_4404 (Array Int Int))) (<= 0 (+ (select (let ((.cse4 (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4)))) (select (store (store |c_#memory_$Pointer$.offset| .cse4 v_ArrVal_4401) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_4403) (select (select (store (store |c_#memory_$Pointer$.base| .cse4 v_ArrVal_4402) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_4404) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_31| 4)) 4)))) (< (select (select (store (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4)) v_ArrVal_4401) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_4403) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_31|))) is different from false [2021-11-25 20:42:19,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425704719] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:42:19,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1109990706] [2021-11-25 20:42:19,180 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2021-11-25 20:42:19,180 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:42:19,180 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:42:19,180 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:42:19,180 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:42:19,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:42:19,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:42:19,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:42:19,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:42:19,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:42:19,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:42:19,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:42:19,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:42:19,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:42:19,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:42:19,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:42:19,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:42:19,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:42:19,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:42:19,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:42:19,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:42:19,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:42:19,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:42:19,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:42:19,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,536 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:42:19,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:42:19,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:42:19,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,556 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:42:19,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:42:19,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,612 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:42:19,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:42:19,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:42:19,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:42:19,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:42:19,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:42:19,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:42:19,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,688 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:42:19,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:42:19,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:42:19,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:42:19,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:42:19,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:42:19,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:42:19,820 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:42:19,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2021-11-25 20:42:19,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:42:19,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:42:19,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:42:19,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,901 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:42:19,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 231 [2021-11-25 20:42:19,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,910 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:42:19,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 223 [2021-11-25 20:42:19,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:19,991 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:42:20,004 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 20:42:20,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 225 treesize of output 227 [2021-11-25 20:42:20,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:20,014 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:42:20,024 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:42:20,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 217 treesize of output 215 [2021-11-25 20:42:20,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:20,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:42:20,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:42:20,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:42:20,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:42:20,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:42:20,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:20,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:42:20,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:42:20,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:20,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:42:20,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:20,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:42:20,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:20,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:42:20,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:42:20,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:42:20,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:42:20,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:42:20,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:42:20,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:20,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:42:20,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:20,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:42:20,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:20,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:42:20,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:20,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:42:20,505 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:42:20,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:42:20,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:42:20,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:20,607 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:42:20,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 37 [2021-11-25 20:42:20,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:42:20,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:42:20,858 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:42:20,947 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:42:20,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:42:20,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:42:21,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:42:21,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:21,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:21,044 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:42:21,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2021-11-25 20:42:21,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:42:22,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:42:22,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:42:22,264 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:42:22,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:42:22,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:42:22,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:42:22,644 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-25 20:42:22,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2021-11-25 20:42:22,663 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-25 20:42:22,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:42:22,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:42:23,225 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:42:23,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:42:23,472 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:42:23,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 150 treesize of output 160 [2021-11-25 20:42:23,763 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:42:23,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 152 treesize of output 198 [2021-11-25 20:42:23,835 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:42:23,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 45 [2021-11-25 20:42:23,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:42:23,977 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 15 for LOIs [2021-11-25 20:42:23,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:42:23,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:42:24,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:42:24,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:42:24,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:42:24,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:42:24,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:24,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:42:24,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:24,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:42:24,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:24,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:24,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:24,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:42:24,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:24,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:24,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:24,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:42:24,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:42:24,057 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:42:33,048 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11031#(and (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (or (< (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4) 0) (< (select |#length| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 8))) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_dll_create_~new_head~0#1.offset|) (<= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= |#NULL.base| 0))' at error location [2021-11-25 20:42:33,049 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:42:33,049 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:42:33,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 29] total 56 [2021-11-25 20:42:33,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948718163] [2021-11-25 20:42:33,049 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 20:42:33,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2021-11-25 20:42:33,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:42:33,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-11-25 20:42:33,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=8220, Unknown=5, NotChecked=930, Total=9506 [2021-11-25 20:42:33,050 INFO L87 Difference]: Start difference. First operand 120 states and 133 transitions. Second operand has 58 states, 49 states have (on average 2.0) internal successors, (98), 48 states have internal predecessors, (98), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:42:35,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:42:35,707 INFO L93 Difference]: Finished difference Result 161 states and 177 transitions. [2021-11-25 20:42:35,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-25 20:42:35,708 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 49 states have (on average 2.0) internal successors, (98), 48 states have internal predecessors, (98), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 57 [2021-11-25 20:42:35,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:42:35,709 INFO L225 Difference]: With dead ends: 161 [2021-11-25 20:42:35,709 INFO L226 Difference]: Without dead ends: 161 [2021-11-25 20:42:35,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 67 SyntacticMatches, 5 SemanticMatches, 114 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 2791 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=562, Invalid=11663, Unknown=5, NotChecked=1110, Total=13340 [2021-11-25 20:42:35,710 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 211 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 1619 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 1827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 145 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:42:35,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 1209 Invalid, 1827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1619 Invalid, 0 Unknown, 145 Unchecked, 0.8s Time] [2021-11-25 20:42:35,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-11-25 20:42:35,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 124. [2021-11-25 20:42:35,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 101 states have (on average 1.2772277227722773) internal successors, (129), 116 states have internal predecessors, (129), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:42:35,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 139 transitions. [2021-11-25 20:42:35,715 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 139 transitions. Word has length 57 [2021-11-25 20:42:35,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:42:35,715 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 139 transitions. [2021-11-25 20:42:35,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 49 states have (on average 2.0) internal successors, (98), 48 states have internal predecessors, (98), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:42:35,715 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 139 transitions. [2021-11-25 20:42:35,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-25 20:42:35,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:42:35,716 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:42:35,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-25 20:42:35,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:42:35,917 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:42:35,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:42:35,917 INFO L85 PathProgramCache]: Analyzing trace with hash 493499782, now seen corresponding path program 1 times [2021-11-25 20:42:35,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:42:35,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214377730] [2021-11-25 20:42:35,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:42:35,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:42:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:42:38,287 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:42:38,287 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:42:38,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214377730] [2021-11-25 20:42:38,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214377730] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:42:38,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754778676] [2021-11-25 20:42:38,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:42:38,288 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:42:38,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:42:38,289 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:42:38,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-25 20:42:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:42:38,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 114 conjunts are in the unsatisfiable core [2021-11-25 20:42:38,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:42:38,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:42:38,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:42:38,774 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:42:38,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:42:39,124 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:42:39,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:42:39,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:42:39,418 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:42:39,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2021-11-25 20:42:39,660 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:42:39,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 17 [2021-11-25 20:42:39,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:42:40,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:40,047 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:42:40,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 42 [2021-11-25 20:42:40,054 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-25 20:42:40,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-25 20:42:40,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:40,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:42:40,643 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-25 20:42:40,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 96 treesize of output 79 [2021-11-25 20:42:40,653 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:42:40,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 48 [2021-11-25 20:42:40,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:40,777 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:42:40,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 54 [2021-11-25 20:42:40,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:40,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-11-25 20:42:40,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2021-11-25 20:42:41,114 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:42:41,116 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:42:41,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 23 [2021-11-25 20:42:41,118 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:42:41,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:42:41,554 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~ptr~0#1.offset_37| Int) (v_ArrVal_4638 (Array Int Int)) (v_ArrVal_4639 (Array Int Int))) (or (= (select |c_#valid| (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4638))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_37| 4))) 1) (<= (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_37| 1) 0) (< (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4639) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_37|))) is different from false [2021-11-25 20:42:41,572 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~ptr~0#1.offset_37| Int) (v_ArrVal_4636 (Array Int Int)) (v_ArrVal_4637 (Array Int Int)) (v_ArrVal_4638 (Array Int Int)) (v_ArrVal_4639 (Array Int Int))) (or (= (select |c_#valid| (select (let ((.cse0 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_4637) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4638))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_37| 4))) 1) (<= (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_37| 1) 0) (< (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_4636) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4639) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_37|))) is different from false [2021-11-25 20:42:41,600 INFO L354 Elim1Store]: treesize reduction 5, result has 83.3 percent of original size [2021-11-25 20:42:41,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2021-11-25 20:42:41,614 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~ptr~0#1.offset_37| Int) (v_ArrVal_4636 (Array Int Int)) (v_ArrVal_4637 (Array Int Int)) (v_ArrVal_4638 (Array Int Int)) (v_ArrVal_4639 (Array Int Int))) (or (= |c_ULTIMATE.start_dll_append_~last~0#1.base| (select (let ((.cse0 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_4637) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4638))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_37| 4))) (<= (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_37| 1) 0) (< (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_4636) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4639) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_37|))) is different from false [2021-11-25 20:42:41,635 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~ptr~0#1.offset_37| Int) (v_ArrVal_4636 (Array Int Int)) (v_ArrVal_4637 (Array Int Int)) (v_ArrVal_4638 (Array Int Int)) (v_ArrVal_4639 (Array Int Int))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4)))) (or (= (select (let ((.cse0 (store (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_4637) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4638))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_37| 4)) .cse1) (<= (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_37| 1) 0) (< (select (select (store (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_4636) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4639) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_37|)))) is different from false [2021-11-25 20:42:41,685 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~ptr~0#1.offset_37| Int) (v_ArrVal_4636 (Array Int Int)) (v_ArrVal_4637 (Array Int Int)) (v_ArrVal_4638 (Array Int Int)) (v_ArrVal_4639 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4)))) (or (< (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_4636) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4639) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_37|) (= .cse0 (select (let ((.cse1 (store (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_4637) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_4638))) (select .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_37| 4))) (<= (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_37| 1) 0)))) is different from false [2021-11-25 20:42:41,736 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~ptr~0#1.offset_37| Int) (v_ArrVal_4636 (Array Int Int)) (v_ArrVal_4637 (Array Int Int)) (v_ArrVal_4638 (Array Int Int)) (v_ArrVal_4639 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4)))) (or (< (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_4636) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_4639) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_37|) (= (select (let ((.cse1 (store (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_4637) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_4638))) (select .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_37| 4)) .cse0) (<= (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_37| 1) 0)))) is different from false [2021-11-25 20:42:41,886 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~ptr~0#1.offset_37| Int) (v_ArrVal_4636 (Array Int Int)) (v_ArrVal_4648 (Array Int Int)) (v_ArrVal_4637 (Array Int Int)) (v_ArrVal_4649 (Array Int Int)) (v_ArrVal_4638 (Array Int Int)) (|v_ULTIMATE.start_dll_append_#t~ret7#1.base_82| Int) (v_ArrVal_4639 (Array Int Int))) (let ((.cse3 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_82| v_ArrVal_4649)) (.cse0 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_82| v_ArrVal_4648))) (let ((.cse1 (select (select .cse3 (select (select .cse3 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select .cse0 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4)))) (or (<= |c_#StackHeapBarrier| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_82|) (not (= (select |c_#valid| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_82|) 0)) (< (select (select (store (store .cse0 .cse1 v_ArrVal_4636) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_82| v_ArrVal_4639) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_37|) (= (select (let ((.cse2 (store (store .cse3 .cse1 v_ArrVal_4637) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_82| v_ArrVal_4638))) (select .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_37| 4)) .cse1) (<= (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_37| 1) 0))))) is different from false [2021-11-25 20:42:41,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754778676] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:42:41,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [823347198] [2021-11-25 20:42:41,889 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2021-11-25 20:42:41,889 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:42:41,889 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:42:41,889 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:42:41,890 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:42:41,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:41,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:41,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:42:41,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:41,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:41,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:42:41,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:42:41,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:42:41,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:42:41,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:42:41,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:42:41,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:41,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:42:41,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:42:41,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:41,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:42:41,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:42:41,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:41,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:41,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:41,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:42:41,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:41,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:41,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:42:42,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:42:42,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:42:42,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:42:42,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:42:42,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:42:42,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:42:42,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,154 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:42:42,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:42:42,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:42:42,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,175 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:42:42,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:42:42,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,221 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:42:42,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:42:42,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:42:42,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:42:42,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:42:42,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:42:42,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:42:42,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,306 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:42:42,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:42:42,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:42:42,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:42:42,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:42:42,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:42:42,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:42:42,486 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:42:42,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2021-11-25 20:42:42,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:42:42,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:42:42,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,557 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:42:42,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 231 [2021-11-25 20:42:42,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,566 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:42:42,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 223 [2021-11-25 20:42:42,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:42:42,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,654 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:42:42,666 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 20:42:42,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 225 treesize of output 227 [2021-11-25 20:42:42,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,677 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:42:42,686 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:42:42,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 217 treesize of output 215 [2021-11-25 20:42:42,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:42:42,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:42:42,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:42:42,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:42:42,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:42:42,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:42:42,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:42:42,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:42:42,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:42:42,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:42:42,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:42:42,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:42:42,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:42:42,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:42:42,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:42:42,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:42,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:42:43,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:43,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:42:43,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:43,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:42:43,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:43,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:42:43,161 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:42:43,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:42:43,287 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:42:43,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 94 [2021-11-25 20:42:43,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:42:43,397 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:42:43,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:42:43,497 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:42:43,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:42:43,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:42:43,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:42:43,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:43,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:43,631 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:42:43,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2021-11-25 20:42:43,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:42:44,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:42:44,846 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:42:44,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:42:45,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:42:45,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:42:45,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:42:45,129 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-25 20:42:45,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2021-11-25 20:42:45,151 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-25 20:42:45,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:42:45,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:42:45,720 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:42:45,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:42:45,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:42:45,859 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:42:45,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:45,917 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:42:45,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 22 [2021-11-25 20:42:45,964 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:42:45,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:45,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2021-11-25 20:42:45,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:42:46,515 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:42:46,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 152 treesize of output 198 [2021-11-25 20:42:46,699 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:42:46,713 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:42:46,724 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:42:46,768 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 15 for LOIs [2021-11-25 20:42:46,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:42:46,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:42:46,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:42:46,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:42:46,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:42:46,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:46,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:42:46,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:46,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:42:46,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:42:46,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:42:46,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:46,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:46,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:46,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:42:46,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:46,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:46,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:42:46,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:42:46,845 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:42:54,889 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11691#(and (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (not (= (select |#valid| |ULTIMATE.start_main_~ptr~0#1.base|) 1)) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_dll_create_~new_head~0#1.offset|) (<= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= |#NULL.base| 0))' at error location [2021-11-25 20:42:54,889 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:42:54,889 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:42:54,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 31] total 64 [2021-11-25 20:42:54,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112781684] [2021-11-25 20:42:54,889 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 20:42:54,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-25 20:42:54,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:42:54,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-25 20:42:54,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=8967, Unknown=11, NotChecked=1372, Total=10712 [2021-11-25 20:42:54,891 INFO L87 Difference]: Start difference. First operand 124 states and 139 transitions. Second operand has 66 states, 57 states have (on average 1.7719298245614035) internal successors, (101), 55 states have internal predecessors, (101), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:42:59,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:42:59,844 INFO L93 Difference]: Finished difference Result 142 states and 157 transitions. [2021-11-25 20:42:59,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-25 20:42:59,845 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 57 states have (on average 1.7719298245614035) internal successors, (101), 55 states have internal predecessors, (101), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 57 [2021-11-25 20:42:59,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:42:59,846 INFO L225 Difference]: With dead ends: 142 [2021-11-25 20:42:59,846 INFO L226 Difference]: Without dead ends: 142 [2021-11-25 20:42:59,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 65 SyntacticMatches, 4 SemanticMatches, 125 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 3890 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=835, Invalid=13462, Unknown=11, NotChecked=1694, Total=16002 [2021-11-25 20:42:59,847 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 376 mSDsluCounter, 1262 mSDsCounter, 0 mSdLazyCounter, 2315 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 2611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 2315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 121 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:42:59,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 1295 Invalid, 2611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 2315 Invalid, 0 Unknown, 121 Unchecked, 1.6s Time] [2021-11-25 20:42:59,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-11-25 20:42:59,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 124. [2021-11-25 20:42:59,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 101 states have (on average 1.2673267326732673) internal successors, (128), 116 states have internal predecessors, (128), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-25 20:42:59,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 138 transitions. [2021-11-25 20:42:59,851 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 138 transitions. Word has length 57 [2021-11-25 20:42:59,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:42:59,851 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 138 transitions. [2021-11-25 20:42:59,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 57 states have (on average 1.7719298245614035) internal successors, (101), 55 states have internal predecessors, (101), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:42:59,851 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 138 transitions. [2021-11-25 20:42:59,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-25 20:42:59,852 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:42:59,852 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:42:59,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-25 20:43:00,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-11-25 20:43:00,055 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:43:00,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:43:00,055 INFO L85 PathProgramCache]: Analyzing trace with hash -192665725, now seen corresponding path program 3 times [2021-11-25 20:43:00,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:43:00,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576280875] [2021-11-25 20:43:00,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:43:00,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:43:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:43:00,125 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-25 20:43:00,125 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:43:00,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576280875] [2021-11-25 20:43:00,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576280875] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:43:00,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884762382] [2021-11-25 20:43:00,126 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 20:43:00,126 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:43:00,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:43:00,127 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:43:00,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-25 20:43:02,245 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 20:43:02,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:43:02,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 20:43:02,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:43:02,330 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-25 20:43:02,330 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:43:02,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884762382] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:43:02,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:43:02,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2021-11-25 20:43:02,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594327267] [2021-11-25 20:43:02,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:43:02,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:43:02,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:43:02,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:43:02,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:43:02,331 INFO L87 Difference]: Start difference. First operand 124 states and 138 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-25 20:43:02,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:43:02,352 INFO L93 Difference]: Finished difference Result 84 states and 90 transitions. [2021-11-25 20:43:02,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:43:02,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 61 [2021-11-25 20:43:02,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:43:02,353 INFO L225 Difference]: With dead ends: 84 [2021-11-25 20:43:02,353 INFO L226 Difference]: Without dead ends: 84 [2021-11-25 20:43:02,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:43:02,354 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 94 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:43:02,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 80 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:43:02,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-11-25 20:43:02,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-11-25 20:43:02,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 67 states have (on average 1.2537313432835822) internal successors, (84), 78 states have internal predecessors, (84), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:43:02,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 90 transitions. [2021-11-25 20:43:02,357 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 90 transitions. Word has length 61 [2021-11-25 20:43:02,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:43:02,357 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 90 transitions. [2021-11-25 20:43:02,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-25 20:43:02,358 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 90 transitions. [2021-11-25 20:43:02,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-25 20:43:02,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:43:02,358 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:43:02,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-25 20:43:02,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:43:02,583 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:43:02,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:43:02,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1254666846, now seen corresponding path program 1 times [2021-11-25 20:43:02,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:43:02,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563072586] [2021-11-25 20:43:02,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:43:02,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:43:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:43:04,506 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 2 proven. 23 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 20:43:04,506 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:43:04,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563072586] [2021-11-25 20:43:04,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563072586] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:43:04,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13561040] [2021-11-25 20:43:04,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:43:04,506 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:43:04,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:43:04,507 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:43:04,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-25 20:43:04,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:43:04,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 118 conjunts are in the unsatisfiable core [2021-11-25 20:43:04,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:43:04,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:43:05,065 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:43:05,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-25 20:43:05,428 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:43:05,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-11-25 20:43:05,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:05,680 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:43:05,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2021-11-25 20:43:06,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:06,234 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:43:06,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 83 treesize of output 73 [2021-11-25 20:43:06,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:06,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 64 [2021-11-25 20:43:06,255 INFO L354 Elim1Store]: treesize reduction 12, result has 72.1 percent of original size [2021-11-25 20:43:06,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 43 [2021-11-25 20:43:06,817 INFO L354 Elim1Store]: treesize reduction 84, result has 20.0 percent of original size [2021-11-25 20:43:06,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 150 treesize of output 75 [2021-11-25 20:43:06,832 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-25 20:43:06,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 116 treesize of output 114 [2021-11-25 20:43:06,954 INFO L354 Elim1Store]: treesize reduction 66, result has 19.5 percent of original size [2021-11-25 20:43:06,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 299 treesize of output 200 [2021-11-25 20:43:06,968 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-25 20:43:06,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 251 treesize of output 211 [2021-11-25 20:43:07,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 148 [2021-11-25 20:43:10,469 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-11-25 20:43:10,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 138 treesize of output 38 [2021-11-25 20:43:10,524 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:43:10,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:43:10,730 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5134 (Array Int Int)) (v_ArrVal_5133 (Array Int Int))) (not (= (let ((.cse3 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_5134)) (.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_5133))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse2 (+ (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (select (select .cse0 (select (select .cse0 .cse1) .cse2)) (+ (select (select .cse3 .cse1) .cse2) 4)))) 0))) is different from false [2021-11-25 20:43:10,925 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5131 (Array Int Int)) (v_ArrVal_5134 (Array Int Int)) (v_ArrVal_5133 (Array Int Int))) (not (= (let ((.cse5 (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4))) (let ((.cse4 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse5))) (let ((.cse3 (store (store |c_#memory_$Pointer$.offset| .cse4 v_ArrVal_5131) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_5134)) (.cse0 (store (store |c_#memory_$Pointer$.base| .cse4 (store (select |c_#memory_$Pointer$.base| .cse4) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse5) 4) |c_ULTIMATE.start_dll_append_~new_last~0#1.base|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_5133))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse2 (+ (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (select (select .cse0 (select (select .cse0 .cse1) .cse2)) (+ (select (select .cse3 .cse1) .cse2) 4)))))) 0))) is different from false [2021-11-25 20:43:10,941 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5131 (Array Int Int)) (v_ArrVal_5134 (Array Int Int)) (v_ArrVal_5133 (Array Int Int))) (not (= (let ((.cse5 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (.cse6 (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (let ((.cse4 (select (select |c_#memory_$Pointer$.base| .cse5) .cse6))) (let ((.cse3 (store (store |c_#memory_$Pointer$.offset| .cse4 v_ArrVal_5131) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_5134)) (.cse0 (store (store |c_#memory_$Pointer$.base| .cse4 (store (select |c_#memory_$Pointer$.base| .cse4) (+ (select (select |c_#memory_$Pointer$.offset| .cse5) .cse6) 4) |c_ULTIMATE.start_dll_append_~new_last~0#1.base|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_5133))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse2 (+ (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (select (select .cse0 (select (select .cse0 .cse1) .cse2)) (+ (select (select .cse3 .cse1) .cse2) 4)))))) 0))) is different from false [2021-11-25 20:43:10,958 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5131 (Array Int Int)) (v_ArrVal_5134 (Array Int Int)) (v_ArrVal_5133 (Array Int Int))) (not (= 0 (let ((.cse5 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (.cse6 (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (let ((.cse4 (select (select |c_#memory_$Pointer$.base| .cse5) .cse6))) (let ((.cse3 (store (store |c_#memory_$Pointer$.offset| .cse4 v_ArrVal_5131) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_5134)) (.cse0 (store (store |c_#memory_$Pointer$.base| .cse4 (store (select |c_#memory_$Pointer$.base| .cse4) (+ (select (select |c_#memory_$Pointer$.offset| .cse5) .cse6) 4) |c_ULTIMATE.start_dll_append_#t~ret7#1.base|)) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_5133))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse2 (+ (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (select (select .cse0 (select (select .cse0 .cse1) .cse2)) (+ (select (select .cse3 .cse1) .cse2) 4))))))))) is different from false [2021-11-25 20:43:11,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13561040] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:43:11,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1567262297] [2021-11-25 20:43:11,494 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2021-11-25 20:43:11,494 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:43:11,494 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:43:11,495 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:43:11,495 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:43:11,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:43:11,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:43:11,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:43:11,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:43:11,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:11,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:43:11,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:11,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:43:11,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:43:11,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:43:11,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:43:11,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:43:11,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:43:11,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:43:11,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:43:11,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:43:11,757 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:43:11,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2021-11-25 20:43:11,764 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:43:11,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,766 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:43:11,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:43:11,774 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:43:11,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,776 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:43:11,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 239 [2021-11-25 20:43:11,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:43:11,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 233 [2021-11-25 20:43:11,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:11,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 240 treesize of output 221 [2021-11-25 20:43:11,924 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:43:12,114 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-11-25 20:43:12,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 261 treesize of output 250 [2021-11-25 20:43:12,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:12,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:12,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:43:12,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:43:12,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:12,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:43:12,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:43:12,285 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:43:12,287 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:43:12,293 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:43:12,353 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-11-25 20:43:12,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 261 treesize of output 250 [2021-11-25 20:43:12,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:43:12,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:43:12,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:12,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:12,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:43:12,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:12,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:43:12,508 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:43:12,510 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:43:12,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:43:12,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:43:12,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:43:12,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:12,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:12,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:43:12,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:12,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:12,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:43:12,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:12,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:43:12,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:12,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:43:12,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:43:12,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:43:12,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:43:12,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:12,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:43:12,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:12,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:12,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:12,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:43:12,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:12,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:43:12,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:12,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:43:13,038 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:43:13,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:43:13,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:43:13,160 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:43:13,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:43:13,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:43:13,270 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:43:13,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:43:13,314 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:43:13,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 49 [2021-11-25 20:43:13,454 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:43:13,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:43:13,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:43:13,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:43:13,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:43:13,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:43:13,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:43:13,886 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-25 20:43:13,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:43:13,908 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-25 20:43:13,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2021-11-25 20:43:14,461 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:43:14,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:43:14,506 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:43:14,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 49 [2021-11-25 20:43:14,751 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:43:14,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 152 treesize of output 198 [2021-11-25 20:43:14,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:43:14,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:14,832 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:43:14,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2021-11-25 20:43:14,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:43:14,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:43:15,597 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 1 for LOIs [2021-11-25 20:43:15,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:43:15,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:43:15,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:15,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:43:15,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:15,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:43:15,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:15,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:43:15,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:15,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:43:15,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:43:15,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:15,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:15,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:15,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:43:15,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:15,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:15,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:15,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:43:15,656 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:43:25,048 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12712#(and (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (= (select |#valid| |ULTIMATE.start_main_~ptr~0#1.base|) 1) (<= (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4) (select |#length| |ULTIMATE.start_main_~ptr~0#1.base|)) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (not (= |ULTIMATE.start_main_~uneq~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) |ULTIMATE.start_main_~ptr~0#1.offset|))) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_dll_create_~new_head~0#1.offset|) (<= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~ptr~0#1.offset|))' at error location [2021-11-25 20:43:25,048 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:43:25,048 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:43:25,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 57 [2021-11-25 20:43:25,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076359648] [2021-11-25 20:43:25,048 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 20:43:25,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2021-11-25 20:43:25,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:43:25,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-11-25 20:43:25,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=8242, Unknown=11, NotChecked=740, Total=9312 [2021-11-25 20:43:25,050 INFO L87 Difference]: Start difference. First operand 84 states and 90 transitions. Second operand has 58 states, 51 states have (on average 2.019607843137255) internal successors, (103), 49 states have internal predecessors, (103), 6 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:43:27,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:43:27,881 INFO L93 Difference]: Finished difference Result 83 states and 88 transitions. [2021-11-25 20:43:27,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-25 20:43:27,881 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 51 states have (on average 2.019607843137255) internal successors, (103), 49 states have internal predecessors, (103), 6 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 61 [2021-11-25 20:43:27,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:43:27,882 INFO L225 Difference]: With dead ends: 83 [2021-11-25 20:43:27,882 INFO L226 Difference]: Without dead ends: 83 [2021-11-25 20:43:27,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 116 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 2796 ImplicationChecksByTransitivity, 18.0s TimeCoverageRelationStatistics Valid=547, Invalid=12340, Unknown=11, NotChecked=908, Total=13806 [2021-11-25 20:43:27,883 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 75 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 1491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 179 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:43:27,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 1229 Invalid, 1491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1270 Invalid, 0 Unknown, 179 Unchecked, 0.8s Time] [2021-11-25 20:43:27,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-25 20:43:27,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-11-25 20:43:27,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 66 states have (on average 1.2424242424242424) internal successors, (82), 77 states have internal predecessors, (82), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:43:27,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 88 transitions. [2021-11-25 20:43:27,887 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 88 transitions. Word has length 61 [2021-11-25 20:43:27,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:43:27,887 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 88 transitions. [2021-11-25 20:43:27,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 51 states have (on average 2.019607843137255) internal successors, (103), 49 states have internal predecessors, (103), 6 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:43:27,888 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 88 transitions. [2021-11-25 20:43:27,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-25 20:43:27,888 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:43:27,888 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:43:27,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2021-11-25 20:43:28,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:43:28,095 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:43:28,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:43:28,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1254711548, now seen corresponding path program 1 times [2021-11-25 20:43:28,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:43:28,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877538757] [2021-11-25 20:43:28,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:43:28,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:43:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:43:30,975 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:43:30,975 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:43:30,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877538757] [2021-11-25 20:43:30,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877538757] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:43:30,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387068026] [2021-11-25 20:43:30,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:43:30,976 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:43:30,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:43:30,976 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:43:30,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-25 20:43:31,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:43:31,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 164 conjunts are in the unsatisfiable core [2021-11-25 20:43:31,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:43:31,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:43:31,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:43:31,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:31,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 20:43:31,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:43:31,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:31,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:43:32,220 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:43:32,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2021-11-25 20:43:32,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:43:32,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:32,261 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:43:32,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-11-25 20:43:32,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:43:32,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:32,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:43:32,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:32,718 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:43:32,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 101 treesize of output 92 [2021-11-25 20:43:32,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:32,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 38 [2021-11-25 20:43:32,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 20:43:33,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:33,452 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:43:33,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 122 treesize of output 104 [2021-11-25 20:43:33,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:33,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:33,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 107 [2021-11-25 20:43:33,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:33,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:43:33,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:33,483 INFO L354 Elim1Store]: treesize reduction 12, result has 72.1 percent of original size [2021-11-25 20:43:33,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 43 [2021-11-25 20:43:34,298 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-25 20:43:34,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 209 treesize of output 168 [2021-11-25 20:43:34,315 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-25 20:43:34,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 180 treesize of output 164 [2021-11-25 20:43:34,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:34,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 62 [2021-11-25 20:43:34,472 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:43:34,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 120 treesize of output 102 [2021-11-25 20:43:34,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 106 [2021-11-25 20:43:34,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:43:35,042 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:43:35,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:35,045 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:43:35,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 114 treesize of output 52 [2021-11-25 20:43:35,053 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-11-25 20:43:35,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 21 [2021-11-25 20:43:35,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 20:43:35,208 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:43:35,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:43:35,650 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5387 (Array Int Int)) (v_ArrVal_5386 (Array Int Int)) (v_ArrVal_5388 (Array Int Int)) (|v_ULTIMATE.start_main_~ptr~0#1.offset_49| Int)) (let ((.cse3 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_5386))) (or (< |v_ULTIMATE.start_main_~ptr~0#1.offset_49| 0) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_5387))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse2 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_49| 4))) (select (select (store |c_#memory_int| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_5388) (select (select .cse0 .cse1) .cse2)) (select (select .cse3 .cse1) .cse2))))) (< (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_49|)))) is different from false [2021-11-25 20:43:35,678 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5387 (Array Int Int)) (v_ArrVal_5386 (Array Int Int)) (v_ArrVal_5388 (Array Int Int)) (|v_ULTIMATE.start_main_~ptr~0#1.offset_49| Int) (v_ArrVal_5383 (Array Int Int)) (v_ArrVal_5385 Int) (v_ArrVal_5382 (Array Int Int))) (let ((.cse3 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_5382) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_5386))) (or (< |v_ULTIMATE.start_main_~ptr~0#1.offset_49| 0) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse0 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_5383) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_5387))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse2 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_49| 4))) (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_dll_append_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4) v_ArrVal_5385)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_5388) (select (select .cse0 .cse1) .cse2)) (select (select .cse3 .cse1) .cse2))))) (< (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_49|)))) is different from false [2021-11-25 20:43:35,755 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5387 (Array Int Int)) (v_ArrVal_5386 (Array Int Int)) (v_ArrVal_5388 (Array Int Int)) (|v_ULTIMATE.start_main_~ptr~0#1.offset_49| Int) (v_ArrVal_5383 (Array Int Int)) (v_ArrVal_5385 Int) (v_ArrVal_5382 (Array Int Int))) (let ((.cse1 (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse1))) (let ((.cse5 (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_5382) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_5386))) (or (= (let ((.cse2 (store (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_5383) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_5387))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse4 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_49| 4))) (select (select (store (store |c_#memory_int| .cse0 (store (select |c_#memory_int| .cse0) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse1) 4) v_ArrVal_5385)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_5388) (select (select .cse2 .cse3) .cse4)) (select (select .cse5 .cse3) .cse4)))) |c_ULTIMATE.start_main_~data~0#1|) (< |v_ULTIMATE.start_main_~ptr~0#1.offset_49| 0) (< (select (select .cse5 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_49|)))))) is different from false [2021-11-25 20:43:35,845 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5387 (Array Int Int)) (v_ArrVal_5386 (Array Int Int)) (v_ArrVal_5388 (Array Int Int)) (|v_ULTIMATE.start_main_~ptr~0#1.offset_49| Int) (v_ArrVal_5383 (Array Int Int)) (v_ArrVal_5385 Int) (v_ArrVal_5382 (Array Int Int))) (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (.cse3 (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| .cse2) .cse3))) (let ((.cse0 (store (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_5382) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_5386))) (or (< (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_49|) (< |v_ULTIMATE.start_main_~ptr~0#1.offset_49| 0) (= (let ((.cse4 (store (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_5383) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_5387))) (let ((.cse5 (select (select .cse4 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse6 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_49| 4))) (select (select (store (store |c_#memory_int| .cse1 (store (select |c_#memory_int| .cse1) (+ (select (select |c_#memory_$Pointer$.offset| .cse2) .cse3) 4) v_ArrVal_5385)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_5388) (select (select .cse4 .cse5) .cse6)) (select (select .cse0 .cse5) .cse6)))) |c_ULTIMATE.start_main_~data~0#1|)))))) is different from false [2021-11-25 20:43:35,930 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5387 (Array Int Int)) (v_ArrVal_5386 (Array Int Int)) (v_ArrVal_5388 (Array Int Int)) (|v_ULTIMATE.start_main_~ptr~0#1.offset_49| Int) (v_ArrVal_5383 (Array Int Int)) (v_ArrVal_5385 Int) (v_ArrVal_5382 (Array Int Int))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (.cse2 (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| .cse1) .cse2))) (let ((.cse6 (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_5382) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_5386))) (or (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse3 (store (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_5383) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_5387))) (let ((.cse4 (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse5 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_49| 4))) (select (select (store (store |c_#memory_int| .cse0 (store (select |c_#memory_int| .cse0) (+ (select (select |c_#memory_$Pointer$.offset| .cse1) .cse2) 4) v_ArrVal_5385)) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_5388) (select (select .cse3 .cse4) .cse5)) (select (select .cse6 .cse4) .cse5))))) (< |v_ULTIMATE.start_main_~ptr~0#1.offset_49| 0) (< (select (select .cse6 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_49|)))))) is different from false [2021-11-25 20:43:36,145 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5387 (Array Int Int)) (v_ArrVal_5386 (Array Int Int)) (v_ArrVal_5388 (Array Int Int)) (v_ArrVal_5402 (Array Int Int)) (v_ArrVal_5401 (Array Int Int)) (v_ArrVal_5403 (Array Int Int)) (|v_ULTIMATE.start_dll_append_#t~ret7#1.base_92| Int) (|v_ULTIMATE.start_main_~ptr~0#1.offset_49| Int) (v_ArrVal_5383 (Array Int Int)) (v_ArrVal_5385 Int) (v_ArrVal_5382 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_92| v_ArrVal_5402)) (.cse9 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_92| v_ArrVal_5403))) (let ((.cse3 (select (select .cse9 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (.cse4 (+ (select (select .cse2 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (let ((.cse1 (select (select .cse9 .cse3) .cse4))) (let ((.cse8 (store (store .cse2 .cse1 v_ArrVal_5382) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_92| v_ArrVal_5386))) (or (= (let ((.cse5 (store (store .cse9 .cse1 v_ArrVal_5383) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_92| v_ArrVal_5387))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse7 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_49| 4))) (select (select (store (let ((.cse0 (store |c_#memory_int| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_92| v_ArrVal_5401))) (store .cse0 .cse1 (store (select .cse0 .cse1) (+ (select (select .cse2 .cse3) .cse4) 4) v_ArrVal_5385))) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_92| v_ArrVal_5388) (select (select .cse5 .cse6) .cse7)) (select (select .cse8 .cse6) .cse7)))) |c_ULTIMATE.start_main_~data~0#1|) (< |v_ULTIMATE.start_main_~ptr~0#1.offset_49| 0) (< (select (select .cse8 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_49|) (not (= (select |c_#valid| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_92|) 0)))))))) is different from false [2021-11-25 20:43:36,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387068026] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:43:36,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [550927564] [2021-11-25 20:43:36,149 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2021-11-25 20:43:36,149 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:43:36,149 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:43:36,149 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:43:36,149 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:43:36,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:43:36,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:43:36,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:43:36,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:43:36,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:36,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:43:36,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:36,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:43:36,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:43:36,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:43:36,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:43:36,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:43:36,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:43:36,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:43:36,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:43:36,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:43:36,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:43:36,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:43:36,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:43:36,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:43:36,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,456 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:43:36,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:43:36,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,470 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:43:36,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:43:36,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,534 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:43:36,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:43:36,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:43:36,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:36,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:43:36,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:43:36,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:43:36,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,633 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:43:36,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:43:36,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:43:36,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:43:36,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:43:36,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:36,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:43:36,843 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:43:36,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 259 [2021-11-25 20:43:36,852 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:43:36,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,855 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:43:36,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 250 [2021-11-25 20:43:36,868 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:43:36,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,870 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:43:36,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 254 [2021-11-25 20:43:36,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:43:36,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 248 [2021-11-25 20:43:36,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:36,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 255 treesize of output 236 [2021-11-25 20:43:37,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:37,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:43:37,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:37,041 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:43:37,051 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:43:37,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 240 treesize of output 236 [2021-11-25 20:43:37,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:37,061 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:43:37,074 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 20:43:37,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 240 treesize of output 240 [2021-11-25 20:43:37,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:43:37,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:43:37,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:43:37,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:37,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:43:37,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:37,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:37,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:37,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:43:37,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:37,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:43:37,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:37,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:43:37,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:43:37,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:43:37,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:43:37,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:37,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:43:37,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:37,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:37,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:37,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:43:37,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:37,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:43:37,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:37,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:43:37,567 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:43:37,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:43:37,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:43:37,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:37,681 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:43:37,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2021-11-25 20:43:37,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:43:37,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:43:38,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:43:38,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:43:38,232 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:43:38,321 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:43:38,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:43:38,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:43:38,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:43:38,603 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:43:38,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:43:38,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:43:38,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:43:38,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:43:38,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:43:38,874 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-25 20:43:38,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:43:38,901 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-25 20:43:38,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2021-11-25 20:43:39,443 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:43:39,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:43:39,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:43:39,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:39,552 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:43:39,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 37 [2021-11-25 20:43:39,775 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:43:39,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 152 treesize of output 198 [2021-11-25 20:43:40,011 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:43:40,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 28 [2021-11-25 20:43:40,023 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:43:40,030 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:43:40,049 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:43:40,054 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:43:40,232 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:43:40,285 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:43:40,302 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:43:40,327 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:43:40,595 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 1 for LOIs [2021-11-25 20:43:40,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:43:40,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:43:40,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:43:40,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:40,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:40,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:40,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:43:40,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:43:40,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:40,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:43:40,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:43:40,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:40,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:40,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:40,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:43:40,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:40,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:40,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:40,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:43:40,655 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:43:49,176 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13285#(and (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_dll_create_~new_head~0#1.offset|) (<= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~ptr~0#1.offset|))' at error location [2021-11-25 20:43:49,176 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:43:49,176 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:43:49,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 33] total 65 [2021-11-25 20:43:49,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700688116] [2021-11-25 20:43:49,176 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 20:43:49,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-25 20:43:49,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:43:49,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-25 20:43:49,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=342, Invalid=8976, Unknown=18, NotChecked=1170, Total=10506 [2021-11-25 20:43:49,177 INFO L87 Difference]: Start difference. First operand 83 states and 88 transitions. Second operand has 66 states, 58 states have (on average 1.8793103448275863) internal successors, (109), 56 states have internal predecessors, (109), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:43:53,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:43:53,584 INFO L93 Difference]: Finished difference Result 83 states and 87 transitions. [2021-11-25 20:43:53,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-25 20:43:53,584 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 58 states have (on average 1.8793103448275863) internal successors, (109), 56 states have internal predecessors, (109), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 61 [2021-11-25 20:43:53,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:43:53,585 INFO L225 Difference]: With dead ends: 83 [2021-11-25 20:43:53,585 INFO L226 Difference]: Without dead ends: 83 [2021-11-25 20:43:53,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 84 SyntacticMatches, 7 SemanticMatches, 123 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 3089 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=614, Invalid=13432, Unknown=20, NotChecked=1434, Total=15500 [2021-11-25 20:43:53,586 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 87 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 1677 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 1869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 122 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:43:53,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 1134 Invalid, 1869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1677 Invalid, 0 Unknown, 122 Unchecked, 1.1s Time] [2021-11-25 20:43:53,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-25 20:43:53,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-11-25 20:43:53,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 66 states have (on average 1.2272727272727273) internal successors, (81), 77 states have internal predecessors, (81), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:43:53,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 87 transitions. [2021-11-25 20:43:53,588 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 87 transitions. Word has length 61 [2021-11-25 20:43:53,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:43:53,589 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 87 transitions. [2021-11-25 20:43:53,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 58 states have (on average 1.8793103448275863) internal successors, (109), 56 states have internal predecessors, (109), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:43:53,589 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 87 transitions. [2021-11-25 20:43:53,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-25 20:43:53,589 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:43:53,590 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:43:53,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-11-25 20:43:53,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:43:53,815 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:43:53,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:43:53,815 INFO L85 PathProgramCache]: Analyzing trace with hash 241355489, now seen corresponding path program 2 times [2021-11-25 20:43:53,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:43:53,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097791497] [2021-11-25 20:43:53,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:43:53,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:43:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:43:55,928 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 20:43:55,928 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:43:55,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097791497] [2021-11-25 20:43:55,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097791497] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:43:55,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935501301] [2021-11-25 20:43:55,928 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 20:43:55,928 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:43:55,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:43:55,929 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:43:55,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-25 20:43:56,779 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 20:43:56,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:43:56,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 167 conjunts are in the unsatisfiable core [2021-11-25 20:43:56,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:43:56,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:43:56,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:43:56,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:43:56,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:43:57,037 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:43:57,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:43:57,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 20:43:57,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:43:57,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:43:57,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:57,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 20:43:57,536 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:43:57,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:43:57,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:43:57,925 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-25 20:43:57,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 35 [2021-11-25 20:43:58,319 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-25 20:43:58,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 35 [2021-11-25 20:43:58,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:43:58,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:43:58,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:43:58,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:58,833 INFO L354 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2021-11-25 20:43:58,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 95 treesize of output 81 [2021-11-25 20:43:58,852 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-25 20:43:58,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:43:58,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:58,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 20:43:58,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:43:58,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:44:00,143 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:44:00,188 INFO L354 Elim1Store]: treesize reduction 231, result has 12.5 percent of original size [2021-11-25 20:44:00,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 14 case distinctions, treesize of input 313 treesize of output 165 [2021-11-25 20:44:00,211 INFO L354 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2021-11-25 20:44:00,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 5 case distinctions, treesize of input 378 treesize of output 210 [2021-11-25 20:44:00,483 INFO L354 Elim1Store]: treesize reduction 66, result has 19.5 percent of original size [2021-11-25 20:44:00,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 390 treesize of output 260 [2021-11-25 20:44:00,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:00,510 INFO L354 Elim1Store]: treesize reduction 96, result has 23.8 percent of original size [2021-11-25 20:44:00,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 290 treesize of output 181 [2021-11-25 20:44:03,176 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:44:03,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:03,219 INFO L354 Elim1Store]: treesize reduction 148, result has 10.3 percent of original size [2021-11-25 20:44:03,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 388 treesize of output 159 [2021-11-25 20:44:03,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:03,245 INFO L354 Elim1Store]: treesize reduction 12, result has 36.8 percent of original size [2021-11-25 20:44:03,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 93 treesize of output 51 [2021-11-25 20:44:03,423 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:44:03,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:44:16,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935501301] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:44:16,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1099151155] [2021-11-25 20:44:16,343 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2021-11-25 20:44:16,343 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:44:16,343 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:44:16,343 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:44:16,343 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:44:16,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:44:16,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:44:16,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:44:16,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:44:16,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:44:16,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:44:16,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:44:16,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:44:16,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:44:16,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:44:16,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:44:16,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:44:16,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:44:16,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:44:16,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:44:16,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:44:16,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:44:16,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:44:16,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:44:16,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:44:16,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,594 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:44:16,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:44:16,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,604 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:44:16,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:44:16,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,655 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:44:16,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:44:16,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:44:16,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:44:16,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:44:16,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:44:16,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:44:16,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,735 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:44:16,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:44:16,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:44:16,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:44:16,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:44:16,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:44:16,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:44:16,867 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:44:16,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2021-11-25 20:44:16,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:44:16,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:44:16,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,939 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:44:16,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 231 [2021-11-25 20:44:16,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,948 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:44:16,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 223 [2021-11-25 20:44:16,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:16,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:44:17,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:17,037 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:44:17,049 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 20:44:17,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 225 treesize of output 227 [2021-11-25 20:44:17,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:17,059 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:44:17,068 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:44:17,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 217 treesize of output 215 [2021-11-25 20:44:17,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:17,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:44:17,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:44:17,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:44:17,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:44:17,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:17,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:44:17,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:44:17,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:44:17,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:17,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:44:17,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:17,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:44:17,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:17,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:44:17,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:44:17,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:44:17,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:44:17,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:17,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:44:17,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:44:17,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:44:17,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:17,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:44:17,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:17,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:44:17,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:17,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:44:17,569 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:44:17,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:44:17,635 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:44:17,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 49 [2021-11-25 20:44:17,772 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:44:17,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:44:17,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:44:17,881 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:44:17,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:44:18,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:44:18,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:44:18,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:18,196 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:44:18,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2021-11-25 20:44:18,284 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:44:18,300 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:44:18,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2021-11-25 20:44:18,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 82 [2021-11-25 20:44:18,333 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:44:18,694 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:44:18,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:44:18,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:44:18,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:44:18,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:44:18,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:44:18,967 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-25 20:44:18,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:44:18,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:44:19,003 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-25 20:44:19,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2021-11-25 20:44:19,531 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:44:19,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:44:19,902 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:44:19,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 166 treesize of output 176 [2021-11-25 20:44:20,546 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:44:20,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 152 treesize of output 198 [2021-11-25 20:44:20,660 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:44:20,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 51 [2021-11-25 20:44:20,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:44:20,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:44:20,761 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 15 for LOIs [2021-11-25 20:44:20,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:44:20,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:44:20,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:44:20,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:44:20,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:44:20,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:20,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:44:20,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:20,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:44:20,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:44:20,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:20,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:20,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:20,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:44:20,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:44:20,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:20,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:20,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:20,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:44:20,840 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:44:30,500 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13866#(and (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (or (< (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4) 0) (< (select |#length| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 8))) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_dll_create_~new_head~0#1.offset|) (<= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= |#NULL.base| 0))' at error location [2021-11-25 20:44:30,500 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:44:30,500 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:44:30,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 33] total 63 [2021-11-25 20:44:30,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857459431] [2021-11-25 20:44:30,500 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 20:44:30,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2021-11-25 20:44:30,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:44:30,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-11-25 20:44:30,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=368, Invalid=11181, Unknown=7, NotChecked=0, Total=11556 [2021-11-25 20:44:30,502 INFO L87 Difference]: Start difference. First operand 83 states and 87 transitions. Second operand has 65 states, 57 states have (on average 1.8771929824561404) internal successors, (107), 54 states have internal predecessors, (107), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:44:34,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:44:34,907 INFO L93 Difference]: Finished difference Result 84 states and 89 transitions. [2021-11-25 20:44:34,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-25 20:44:34,908 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 57 states have (on average 1.8771929824561404) internal successors, (107), 54 states have internal predecessors, (107), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 62 [2021-11-25 20:44:34,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:44:34,908 INFO L225 Difference]: With dead ends: 84 [2021-11-25 20:44:34,909 INFO L226 Difference]: Without dead ends: 84 [2021-11-25 20:44:34,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 81 SyntacticMatches, 5 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4475 ImplicationChecksByTransitivity, 27.0s TimeCoverageRelationStatistics Valid=586, Invalid=17494, Unknown=10, NotChecked=0, Total=18090 [2021-11-25 20:44:34,910 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 19 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 469 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:44:34,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 1169 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 729 Invalid, 0 Unknown, 469 Unchecked, 0.5s Time] [2021-11-25 20:44:34,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-11-25 20:44:34,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-11-25 20:44:34,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 67 states have (on average 1.2388059701492538) internal successors, (83), 78 states have internal predecessors, (83), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:44:34,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 89 transitions. [2021-11-25 20:44:34,914 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 89 transitions. Word has length 62 [2021-11-25 20:44:34,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:44:34,914 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 89 transitions. [2021-11-25 20:44:34,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 57 states have (on average 1.8771929824561404) internal successors, (107), 54 states have internal predecessors, (107), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:44:34,914 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 89 transitions. [2021-11-25 20:44:34,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-25 20:44:34,915 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:44:34,915 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:44:34,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-11-25 20:44:35,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:44:35,127 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:44:35,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:44:35,127 INFO L85 PathProgramCache]: Analyzing trace with hash 241355488, now seen corresponding path program 2 times [2021-11-25 20:44:35,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:44:35,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388670168] [2021-11-25 20:44:35,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:44:35,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:44:35,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:44:37,657 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:44:37,657 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:44:37,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388670168] [2021-11-25 20:44:37,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388670168] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:44:37,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640856521] [2021-11-25 20:44:37,657 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 20:44:37,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:44:37,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:44:37,658 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:44:37,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-25 20:44:39,000 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 20:44:39,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:44:39,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 192 conjunts are in the unsatisfiable core [2021-11-25 20:44:39,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:44:39,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:44:39,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:44:39,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:44:39,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:44:39,201 INFO L354 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2021-11-25 20:44:39,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2021-11-25 20:44:39,216 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:44:39,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:44:39,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:44:39,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:44:39,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:44:39,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:44:39,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:44:39,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:44:40,071 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:44:40,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2021-11-25 20:44:40,088 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:44:40,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:44:40,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:40,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 20:44:40,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:44:40,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:44:40,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:44:40,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:44:40,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:44:40,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:40,656 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:44:40,659 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:44:40,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 57 [2021-11-25 20:44:40,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:40,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 42 [2021-11-25 20:44:41,065 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:44:41,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 49 [2021-11-25 20:44:41,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:44:41,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:41,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-25 20:44:41,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:44:41,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:41,509 INFO L354 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2021-11-25 20:44:41,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 99 treesize of output 87 [2021-11-25 20:44:41,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:41,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:41,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:41,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:41,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:41,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2021-11-25 20:44:41,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:41,533 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-25 20:44:41,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:44:41,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:41,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 20:44:42,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:42,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:44:42,602 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:44:42,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:42,645 INFO L354 Elim1Store]: treesize reduction 211, result has 14.2 percent of original size [2021-11-25 20:44:42,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 130 treesize of output 94 [2021-11-25 20:44:42,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:42,678 INFO L354 Elim1Store]: treesize reduction 104, result has 22.4 percent of original size [2021-11-25 20:44:42,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 131 treesize of output 123 [2021-11-25 20:44:42,931 INFO L354 Elim1Store]: treesize reduction 66, result has 19.5 percent of original size [2021-11-25 20:44:42,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 265 treesize of output 160 [2021-11-25 20:44:42,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:42,956 INFO L354 Elim1Store]: treesize reduction 74, result has 21.3 percent of original size [2021-11-25 20:44:42,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 229 treesize of output 225 [2021-11-25 20:44:51,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:51,430 INFO L354 Elim1Store]: treesize reduction 95, result has 11.2 percent of original size [2021-11-25 20:44:51,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 232 treesize of output 178 [2021-11-25 20:44:54,223 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:44:54,223 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:44:54,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:44:54,239 INFO L354 Elim1Store]: treesize reduction 33, result has 25.0 percent of original size [2021-11-25 20:44:54,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 127 treesize of output 54 [2021-11-25 20:44:54,243 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 7 proven. 28 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:44:54,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:44:55,901 INFO L354 Elim1Store]: treesize reduction 5, result has 84.8 percent of original size [2021-11-25 20:44:55,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2021-11-25 20:44:56,292 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~ptr~0#1.offset_64| Int) (v_ArrVal_5894 (Array Int Int)) (v_ArrVal_5896 (Array Int Int)) (|v_ULTIMATE.start_main_~ptr~0#1.offset_65| Int)) (let ((.cse6 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_5894))) (let ((.cse1 (select (select .cse6 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse2 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_65| 4))) (let ((.cse3 (select (select .cse6 .cse1) .cse2)) (.cse4 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_64| 4))) (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_5896)) (.cse5 (select (select .cse6 .cse3) .cse4))) (or (< (select (select .cse0 .cse1) .cse2) |v_ULTIMATE.start_main_~ptr~0#1.offset_64|) (< |v_ULTIMATE.start_main_~ptr~0#1.offset_65| 0) (< (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_65|) (and (= (select (select .cse0 .cse3) .cse4) 0) (= .cse5 0)) (< |v_ULTIMATE.start_main_~ptr~0#1.offset_64| 0) (= .cse5 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|))))))) is different from false [2021-11-25 20:45:13,817 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_append_#t~ret7#1.base_102| Int) (v_ArrVal_5909 (Array Int Int)) (v_ArrVal_5908 (Array Int Int)) (|v_ULTIMATE.start_main_~ptr~0#1.offset_64| Int) (v_ArrVal_5894 (Array Int Int)) (|v_ULTIMATE.start_dll_append_~last~0#1.offset_95| Int) (|v_ULTIMATE.start_main_~ptr~0#1.offset_65| Int) (v_ArrVal_5896 (Array Int Int)) (v_ArrVal_5891 Int) (v_ArrVal_5907 Int)) (let ((.cse11 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_102| v_ArrVal_5908)) (.cse10 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_102| v_ArrVal_5909))) (let ((.cse8 (select (select .cse11 (select (select .cse11 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select .cse10 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4)))) (let ((.cse0 (select .cse11 .cse8)) (.cse1 (+ |v_ULTIMATE.start_dll_append_~last~0#1.offset_95| 4))) (let ((.cse9 (store (store .cse11 .cse8 (store .cse0 .cse1 |v_ULTIMATE.start_dll_append_#t~ret7#1.base_102|)) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_102| v_ArrVal_5894))) (let ((.cse6 (select (select .cse9 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse7 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_65| 4))) (let ((.cse4 (select (select .cse9 .cse6) .cse7)) (.cse5 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_64| 4))) (let ((.cse3 (store (store .cse10 .cse8 (store (select .cse10 .cse8) .cse1 v_ArrVal_5891)) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_102| v_ArrVal_5896)) (.cse2 (select (select .cse9 .cse4) .cse5))) (or (< |v_ULTIMATE.start_main_~ptr~0#1.offset_65| 0) (not (= (select .cse0 .cse1) 0)) (< .cse1 0) (< |v_ULTIMATE.start_main_~ptr~0#1.offset_64| 0) (and (= .cse2 0) (= (select (select .cse3 .cse4) .cse5) 0)) (not (= (select |c_#valid| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_102|) 0)) (< (select (select .cse3 .cse6) .cse7) |v_ULTIMATE.start_main_~ptr~0#1.offset_64|) (<= |c_#StackHeapBarrier| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_102|) (< (select (store |c_#length| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_102| v_ArrVal_5907) .cse8) (+ |v_ULTIMATE.start_dll_append_~last~0#1.offset_95| 8)) (< (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_65|) (= .cse2 |v_ULTIMATE.start_dll_append_#t~ret7#1.base_102|)))))))))) is different from false [2021-11-25 20:45:13,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640856521] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:45:13,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2041286809] [2021-11-25 20:45:13,821 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2021-11-25 20:45:13,821 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:45:13,821 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:45:13,822 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:45:13,822 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:45:13,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:13,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:13,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:45:13,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:13,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:13,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:45:13,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:45:13,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:45:13,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:45:13,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:45:13,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:45:13,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:13,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:45:13,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:13,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:45:13,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:45:13,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:45:13,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:13,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:13,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:13,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:45:13,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:13,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:13,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:13,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:45:13,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:13,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:13,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:45:14,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:14,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:14,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:45:14,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:14,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:14,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:45:14,105 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:45:14,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2021-11-25 20:45:14,112 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:45:14,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:14,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:14,114 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:45:14,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:14,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:45:14,123 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:45:14,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:14,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:14,125 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:45:14,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:14,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 239 [2021-11-25 20:45:14,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:14,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:45:14,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:14,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 233 [2021-11-25 20:45:14,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:14,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 240 treesize of output 221 [2021-11-25 20:45:14,273 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:45:14,445 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-11-25 20:45:14,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 261 treesize of output 250 [2021-11-25 20:45:14,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:14,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:45:14,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:45:14,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:45:14,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:45:14,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:14,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:45:14,618 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:45:14,619 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:45:14,622 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:45:14,677 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-11-25 20:45:14,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 261 treesize of output 250 [2021-11-25 20:45:14,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:45:14,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:45:14,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:14,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:45:14,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:45:14,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:14,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:45:14,817 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:45:14,820 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:45:14,823 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:45:14,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:45:14,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:45:14,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:45:14,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:45:14,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:14,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:45:14,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:45:15,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:15,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:45:15,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:15,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:45:15,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:15,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:45:15,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:45:15,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:45:15,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:45:15,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:15,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:45:15,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:45:15,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:45:15,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:15,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:45:15,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:15,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:45:15,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:15,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:45:15,368 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:45:15,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:45:15,415 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:45:15,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 45 [2021-11-25 20:45:15,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:45:15,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:45:15,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:45:15,659 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:45:15,744 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:45:15,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:45:15,810 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:45:15,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 37 [2021-11-25 20:45:15,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:45:15,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:45:15,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:45:16,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:45:16,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:45:16,506 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:45:16,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:45:16,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:45:16,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:45:16,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:45:16,773 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-25 20:45:16,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2021-11-25 20:45:16,793 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-25 20:45:16,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:45:17,328 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:45:17,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:45:17,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:45:17,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:45:17,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:17,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:17,432 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:45:17,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-25 20:45:18,413 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:45:18,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 152 treesize of output 198 [2021-11-25 20:45:18,656 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:45:18,670 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:45:18,681 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:45:18,727 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 15 for LOIs [2021-11-25 20:45:18,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:45:18,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:45:18,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:45:18,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:45:18,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:45:18,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:45:18,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:18,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:45:18,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:18,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:45:18,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:18,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:18,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:18,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:45:18,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:45:18,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:18,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:18,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:18,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:45:18,806 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:45:28,927 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14470#(and (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (not (= (select |#valid| |ULTIMATE.start_main_~ptr~0#1.base|) 1)) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_dll_create_~new_head~0#1.offset|) (<= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= |#NULL.base| 0))' at error location [2021-11-25 20:45:28,927 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:45:28,927 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:45:28,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 38] total 67 [2021-11-25 20:45:28,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675250829] [2021-11-25 20:45:28,927 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 20:45:28,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2021-11-25 20:45:28,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:45:28,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-11-25 20:45:28,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=12014, Unknown=29, NotChecked=442, Total=12882 [2021-11-25 20:45:28,929 INFO L87 Difference]: Start difference. First operand 84 states and 89 transitions. Second operand has 69 states, 60 states have (on average 1.8166666666666667) internal successors, (109), 60 states have internal predecessors, (109), 6 states have call successors, (6), 2 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:45:33,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:45:33,674 INFO L93 Difference]: Finished difference Result 94 states and 99 transitions. [2021-11-25 20:45:33,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-25 20:45:33,674 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 60 states have (on average 1.8166666666666667) internal successors, (109), 60 states have internal predecessors, (109), 6 states have call successors, (6), 2 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 62 [2021-11-25 20:45:33,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:45:33,675 INFO L225 Difference]: With dead ends: 94 [2021-11-25 20:45:33,675 INFO L226 Difference]: Without dead ends: 94 [2021-11-25 20:45:33,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 71 SyntacticMatches, 5 SemanticMatches, 135 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 4516 ImplicationChecksByTransitivity, 21.8s TimeCoverageRelationStatistics Valid=601, Invalid=17465, Unknown=32, NotChecked=534, Total=18632 [2021-11-25 20:45:33,677 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 50 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 1817 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 2174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 324 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:45:33,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 1069 Invalid, 2174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1817 Invalid, 0 Unknown, 324 Unchecked, 1.2s Time] [2021-11-25 20:45:33,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-25 20:45:33,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 84. [2021-11-25 20:45:33,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 67 states have (on average 1.2238805970149254) internal successors, (82), 78 states have internal predecessors, (82), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:45:33,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 88 transitions. [2021-11-25 20:45:33,681 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 88 transitions. Word has length 62 [2021-11-25 20:45:33,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:45:33,681 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 88 transitions. [2021-11-25 20:45:33,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 60 states have (on average 1.8166666666666667) internal successors, (109), 60 states have internal predecessors, (109), 6 states have call successors, (6), 2 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:45:33,682 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 88 transitions. [2021-11-25 20:45:33,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-25 20:45:33,682 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:45:33,682 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:45:33,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-25 20:45:33,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-11-25 20:45:33,895 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:45:33,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:45:33,895 INFO L85 PathProgramCache]: Analyzing trace with hash 14392211, now seen corresponding path program 1 times [2021-11-25 20:45:33,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:45:33,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533857433] [2021-11-25 20:45:33,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:45:33,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:45:33,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:45:35,818 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 20:45:35,818 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:45:35,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533857433] [2021-11-25 20:45:35,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533857433] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:45:35,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917905194] [2021-11-25 20:45:35,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:45:35,818 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:45:35,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:45:35,819 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:45:35,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-25 20:45:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:45:36,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 144 conjunts are in the unsatisfiable core [2021-11-25 20:45:36,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:45:36,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:45:36,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:45:36,425 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:45:36,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-25 20:45:36,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:45:36,774 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-25 20:45:36,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2021-11-25 20:45:37,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:45:37,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:45:37,123 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:45:37,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 53 [2021-11-25 20:45:37,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 20:45:37,401 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:45:37,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 33 [2021-11-25 20:45:37,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 20:45:37,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:37,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:37,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2021-11-25 20:45:37,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:37,749 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:45:37,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 64 [2021-11-25 20:45:37,762 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-25 20:45:37,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:45:38,416 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-25 20:45:38,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 143 treesize of output 114 [2021-11-25 20:45:38,441 INFO L354 Elim1Store]: treesize reduction 112, result has 16.4 percent of original size [2021-11-25 20:45:38,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 74 treesize of output 58 [2021-11-25 20:45:38,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:38,570 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:45:38,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 105 treesize of output 85 [2021-11-25 20:45:38,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:38,583 INFO L354 Elim1Store]: treesize reduction 35, result has 12.5 percent of original size [2021-11-25 20:45:38,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 59 [2021-11-25 20:45:39,038 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:45:39,038 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:45:39,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:39,045 INFO L354 Elim1Store]: treesize reduction 3, result has 70.0 percent of original size [2021-11-25 20:45:39,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 105 treesize of output 54 [2021-11-25 20:45:39,507 INFO L354 Elim1Store]: treesize reduction 12, result has 36.8 percent of original size [2021-11-25 20:45:39,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 35 [2021-11-25 20:45:39,631 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:45:39,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:45:39,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-25 20:45:40,232 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6135 (Array Int Int)) (v_ArrVal_6136 (Array Int Int)) (|v_ULTIMATE.start_main_~ptr~0#1.offset_73| Int)) (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_6135))) (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_6136)) (.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse3 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_73| 4))) (let ((.cse4 (select (select .cse0 .cse2) .cse3))) (or (< |v_ULTIMATE.start_main_~ptr~0#1.offset_73| 0) (<= 0 (select (select .cse0 (select (select .cse1 .cse2) .cse3)) (+ .cse4 4))) (< (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_73|) (< .cse4 0)))))) is different from false [2021-11-25 20:45:40,339 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6135 (Array Int Int)) (v_ArrVal_6134 (Array Int Int)) (v_ArrVal_6136 (Array Int Int)) (|v_ULTIMATE.start_main_~ptr~0#1.offset_73| Int) (v_ArrVal_6132 Int)) (let ((.cse2 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_6134) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_6135))) (let ((.cse0 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4) v_ArrVal_6132)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_6136)) (.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse4 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_73| 4))) (let ((.cse1 (select (select .cse0 .cse3) .cse4))) (or (< |v_ULTIMATE.start_main_~ptr~0#1.offset_73| 0) (< (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_73|) (< .cse1 0) (<= 0 (select (select .cse0 (select (select .cse2 .cse3) .cse4)) (+ 4 .cse1))) (< v_ArrVal_6132 |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)))))) is different from false [2021-11-25 20:45:40,673 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6135 (Array Int Int)) (v_ArrVal_6134 (Array Int Int)) (v_ArrVal_6136 (Array Int Int)) (|v_ULTIMATE.start_main_~ptr~0#1.offset_73| Int) (v_ArrVal_6132 Int)) (let ((.cse6 (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4))) (let ((.cse5 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse6))) (let ((.cse1 (store (store |c_#memory_$Pointer$.base| .cse5 v_ArrVal_6134) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_6135))) (let ((.cse0 (store (store |c_#memory_$Pointer$.offset| .cse5 (store (select |c_#memory_$Pointer$.offset| .cse5) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse6) 4) v_ArrVal_6132)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_6136)) (.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse3 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_73| 4))) (let ((.cse4 (select (select .cse0 .cse2) .cse3))) (or (< (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_73|) (< |v_ULTIMATE.start_main_~ptr~0#1.offset_73| 0) (<= 0 (select (select .cse0 (select (select .cse1 .cse2) .cse3)) (+ .cse4 4))) (< .cse4 0) (< v_ArrVal_6132 |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)))))))) is different from false [2021-11-25 20:45:41,046 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6135 (Array Int Int)) (v_ArrVal_6134 (Array Int Int)) (v_ArrVal_6136 (Array Int Int)) (|v_ULTIMATE.start_main_~ptr~0#1.offset_73| Int) (v_ArrVal_6132 Int)) (let ((.cse6 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (.cse7 (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (let ((.cse5 (select (select |c_#memory_$Pointer$.base| .cse6) .cse7))) (let ((.cse1 (store (store |c_#memory_$Pointer$.base| .cse5 v_ArrVal_6134) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_6135))) (let ((.cse0 (store (store |c_#memory_$Pointer$.offset| .cse5 (store (select |c_#memory_$Pointer$.offset| .cse5) (+ (select (select |c_#memory_$Pointer$.offset| .cse6) .cse7) 4) v_ArrVal_6132)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_6136)) (.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse3 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_73| 4))) (let ((.cse4 (select (select .cse0 .cse2) .cse3))) (or (<= 0 (select (select .cse0 (select (select .cse1 .cse2) .cse3)) (+ 4 .cse4))) (< |v_ULTIMATE.start_main_~ptr~0#1.offset_73| 0) (< (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_73|) (< .cse4 0) (< v_ArrVal_6132 |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)))))))) is different from false [2021-11-25 20:45:41,446 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6135 (Array Int Int)) (v_ArrVal_6134 (Array Int Int)) (v_ArrVal_6136 (Array Int Int)) (|v_ULTIMATE.start_main_~ptr~0#1.offset_73| Int) (v_ArrVal_6132 Int)) (let ((.cse6 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (.cse7 (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (let ((.cse5 (select (select |c_#memory_$Pointer$.base| .cse6) .cse7))) (let ((.cse1 (store (store |c_#memory_$Pointer$.base| .cse5 v_ArrVal_6134) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_6135))) (let ((.cse0 (store (store |c_#memory_$Pointer$.offset| .cse5 (store (select |c_#memory_$Pointer$.offset| .cse5) (+ (select (select |c_#memory_$Pointer$.offset| .cse6) .cse7) 4) v_ArrVal_6132)) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_6136)) (.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse3 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_73| 4))) (let ((.cse4 (select (select .cse0 .cse2) .cse3))) (or (< |v_ULTIMATE.start_main_~ptr~0#1.offset_73| 0) (< v_ArrVal_6132 |c_ULTIMATE.start_dll_append_#t~ret7#1.offset|) (< (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_73|) (<= 0 (select (select .cse0 (select (select .cse1 .cse2) .cse3)) (+ 4 .cse4))) (< .cse4 0)))))))) is different from false [2021-11-25 20:45:41,734 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6146 (Array Int Int)) (v_ArrVal_6135 (Array Int Int)) (v_ArrVal_6145 (Array Int Int)) (v_ArrVal_6134 (Array Int Int)) (v_ArrVal_6136 (Array Int Int)) (|v_ULTIMATE.start_dll_append_#t~ret7#1.base_107| Int) (|v_ULTIMATE.start_main_~ptr~0#1.offset_73| Int) (v_ArrVal_6132 Int)) (let ((.cse5 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_107| v_ArrVal_6145)) (.cse9 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_107| v_ArrVal_6146))) (let ((.cse7 (select (select .cse9 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (.cse8 (+ (select (select .cse5 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (let ((.cse6 (select (select .cse9 .cse7) .cse8))) (let ((.cse1 (store (store .cse9 .cse6 v_ArrVal_6134) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_107| v_ArrVal_6135))) (let ((.cse0 (store (store .cse5 .cse6 (store (select .cse5 .cse6) (+ (select (select .cse5 .cse7) .cse8) 4) v_ArrVal_6132)) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_107| v_ArrVal_6136)) (.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse3 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_73| 4))) (let ((.cse4 (select (select .cse0 .cse2) .cse3))) (or (< |v_ULTIMATE.start_main_~ptr~0#1.offset_73| 0) (< (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_73|) (<= |c_#StackHeapBarrier| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_107|) (<= 0 (select (select .cse0 (select (select .cse1 .cse2) .cse3)) (+ .cse4 4))) (< .cse4 0) (not (= (select |c_#valid| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_107|) 0)) (< v_ArrVal_6132 0))))))))) is different from false [2021-11-25 20:45:41,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917905194] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:45:41,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [750085347] [2021-11-25 20:45:41,737 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2021-11-25 20:45:41,737 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:45:41,737 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:45:41,737 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:45:41,737 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:45:41,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:41,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:41,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:45:41,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:41,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:41,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:45:41,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:45:41,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:45:41,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:45:41,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:45:41,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:45:41,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:45:41,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:41,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:45:41,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:41,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:45:41,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:41,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:41,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:41,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:45:41,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:41,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:41,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:41,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:45:41,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:45:41,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:41,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:41,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:45:41,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:41,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:41,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:45:41,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:41,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:41,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:45:41,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:45:41,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:45:42,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:45:42,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:45:42,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,039 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:45:42,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:45:42,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,049 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:45:42,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:45:42,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,130 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:45:42,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:45:42,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:45:42,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:45:42,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:45:42,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:45:42,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:45:42,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,216 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:45:42,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:45:42,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:45:42,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:45:42,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:45:42,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:45:42,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:45:42,344 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:45:42,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2021-11-25 20:45:42,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:45:42,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:45:42,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,419 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:45:42,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 231 [2021-11-25 20:45:42,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,427 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:45:42,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 223 [2021-11-25 20:45:42,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:45:42,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,516 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:45:42,526 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:45:42,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 225 treesize of output 223 [2021-11-25 20:45:42,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,535 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:45:42,547 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 20:45:42,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 225 treesize of output 227 [2021-11-25 20:45:42,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:45:42,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:45:42,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:45:42,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:45:42,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:45:42,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:45:42,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:45:42,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:45:42,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:45:42,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:45:42,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:45:42,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:45:42,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:45:42,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:45:42,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:45:42,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:45:42,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:45:42,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:45:42,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:42,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:45:43,029 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:45:43,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:45:43,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:45:43,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:45:43,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:45:43,270 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:45:43,359 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:45:43,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:45:43,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:45:43,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:43,488 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:45:43,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 37 [2021-11-25 20:45:43,702 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:45:43,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:45:43,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:45:43,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:45:43,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:45:43,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:45:43,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:45:43,987 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-25 20:45:43,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2021-11-25 20:45:44,012 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-25 20:45:44,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:45:44,553 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:45:44,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:45:44,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:45:44,844 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:45:44,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 152 treesize of output 198 [2021-11-25 20:45:44,973 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:45:44,977 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:45:45,007 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 15 for LOIs [2021-11-25 20:45:45,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:45:45,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:45:45,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:45:45,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:45:45,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:45:45,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:45,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:45:45,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:45:45,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:45,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:45:45,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:45,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:45,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:45,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:45:45,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:45:45,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:45,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:45,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:45:45,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:45:45,104 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:45:53,510 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '15075#(and (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (or (< |ULTIMATE.start_main_~ptr~0#1.offset| 0) (< (select |#length| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4))) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_dll_create_~new_head~0#1.offset|) (<= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= |#NULL.base| 0))' at error location [2021-11-25 20:45:53,510 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:45:53,510 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:45:53,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 32] total 60 [2021-11-25 20:45:53,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386763257] [2021-11-25 20:45:53,511 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 20:45:53,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2021-11-25 20:45:53,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:45:53,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-11-25 20:45:53,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=9166, Unknown=8, NotChecked=1182, Total=10712 [2021-11-25 20:45:53,513 INFO L87 Difference]: Start difference. First operand 84 states and 88 transitions. Second operand has 62 states, 54 states have (on average 2.0185185185185186) internal successors, (109), 53 states have internal predecessors, (109), 6 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:45:57,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:45:57,038 INFO L93 Difference]: Finished difference Result 105 states and 110 transitions. [2021-11-25 20:45:57,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-25 20:45:57,039 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 54 states have (on average 2.0185185185185186) internal successors, (109), 53 states have internal predecessors, (109), 6 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 64 [2021-11-25 20:45:57,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:45:57,039 INFO L225 Difference]: With dead ends: 105 [2021-11-25 20:45:57,040 INFO L226 Difference]: Without dead ends: 105 [2021-11-25 20:45:57,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 90 SyntacticMatches, 8 SemanticMatches, 124 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 3897 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=612, Invalid=13684, Unknown=8, NotChecked=1446, Total=15750 [2021-11-25 20:45:57,041 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 115 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 1632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 158 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:45:57,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 1147 Invalid, 1632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1439 Invalid, 0 Unknown, 158 Unchecked, 0.8s Time] [2021-11-25 20:45:57,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-11-25 20:45:57,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 86. [2021-11-25 20:45:57,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 69 states have (on average 1.2318840579710144) internal successors, (85), 80 states have internal predecessors, (85), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:45:57,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2021-11-25 20:45:57,044 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 64 [2021-11-25 20:45:57,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:45:57,044 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2021-11-25 20:45:57,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 54 states have (on average 2.0185185185185186) internal successors, (109), 53 states have internal predecessors, (109), 6 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:45:57,045 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2021-11-25 20:45:57,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-25 20:45:57,045 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:45:57,045 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:45:57,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-11-25 20:45:57,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-11-25 20:45:57,258 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:45:57,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:45:57,258 INFO L85 PathProgramCache]: Analyzing trace with hash 14392258, now seen corresponding path program 1 times [2021-11-25 20:45:57,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:45:57,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019780569] [2021-11-25 20:45:57,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:45:57,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:45:57,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:45:59,025 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 20:45:59,025 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:45:59,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019780569] [2021-11-25 20:45:59,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019780569] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:45:59,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069759378] [2021-11-25 20:45:59,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:45:59,026 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:45:59,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:45:59,026 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:45:59,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-25 20:45:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:45:59,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 155 conjunts are in the unsatisfiable core [2021-11-25 20:45:59,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:45:59,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:45:59,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:45:59,624 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:45:59,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-25 20:45:59,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:45:59,913 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-25 20:45:59,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2021-11-25 20:46:00,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:00,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:00,226 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:46:00,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 53 [2021-11-25 20:46:00,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 20:46:00,493 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:46:00,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 33 [2021-11-25 20:46:00,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 20:46:00,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:00,726 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:46:00,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 64 [2021-11-25 20:46:00,742 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-25 20:46:00,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:46:00,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:00,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2021-11-25 20:46:01,374 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-25 20:46:01,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 143 treesize of output 114 [2021-11-25 20:46:01,398 INFO L354 Elim1Store]: treesize reduction 112, result has 16.4 percent of original size [2021-11-25 20:46:01,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 74 treesize of output 58 [2021-11-25 20:46:01,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:01,514 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:46:01,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 71 [2021-11-25 20:46:01,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:01,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2021-11-25 20:46:01,925 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:46:01,927 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:46:01,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 45 [2021-11-25 20:46:02,355 INFO L354 Elim1Store]: treesize reduction 12, result has 36.8 percent of original size [2021-11-25 20:46:02,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 27 [2021-11-25 20:46:02,366 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:46:02,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:46:02,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-25 20:46:03,030 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~ptr~0#1.offset_81| Int) (v_ArrVal_6373 (Array Int Int)) (v_ArrVal_6372 (Array Int Int))) (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_6373))) (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_6372)) (.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse3 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_81| 4))) (let ((.cse4 (select (select .cse0 .cse2) .cse3))) (or (<= 0 (select (select .cse0 (select (select .cse1 .cse2) .cse3)) (+ .cse4 4))) (< |v_ULTIMATE.start_main_~ptr~0#1.offset_81| 0) (< (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_81|) (< .cse4 0)))))) is different from false [2021-11-25 20:46:03,069 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~ptr~0#1.offset_81| Int) (v_ArrVal_6370 (Array Int Int)) (v_ArrVal_6373 (Array Int Int)) (v_ArrVal_6372 (Array Int Int))) (let ((.cse1 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_6370) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_6373))) (let ((.cse0 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4) |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_6372)) (.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse3 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_81| 4))) (let ((.cse4 (select (select .cse0 .cse2) .cse3))) (or (< (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_81|) (< |v_ULTIMATE.start_main_~ptr~0#1.offset_81| 0) (<= 0 (select (select .cse0 (select (select .cse1 .cse2) .cse3)) (+ 4 .cse4))) (< .cse4 0)))))) is different from false [2021-11-25 20:46:03,184 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~ptr~0#1.offset_81| Int) (v_ArrVal_6370 (Array Int Int)) (v_ArrVal_6373 (Array Int Int)) (v_ArrVal_6372 (Array Int Int))) (let ((.cse6 (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4))) (let ((.cse5 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse6))) (let ((.cse1 (store (store |c_#memory_$Pointer$.base| .cse5 v_ArrVal_6370) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_6373))) (let ((.cse0 (store (store |c_#memory_$Pointer$.offset| .cse5 (store (select |c_#memory_$Pointer$.offset| .cse5) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse6) 4) |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_6372)) (.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse3 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_81| 4))) (let ((.cse4 (select (select .cse0 .cse2) .cse3))) (or (< |v_ULTIMATE.start_main_~ptr~0#1.offset_81| 0) (< (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_81|) (<= 0 (select (select .cse0 (select (select .cse1 .cse2) .cse3)) (+ .cse4 4))) (< .cse4 0)))))))) is different from false [2021-11-25 20:46:03,306 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~ptr~0#1.offset_81| Int) (v_ArrVal_6370 (Array Int Int)) (v_ArrVal_6373 (Array Int Int)) (v_ArrVal_6372 (Array Int Int))) (let ((.cse6 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (.cse7 (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (let ((.cse5 (select (select |c_#memory_$Pointer$.base| .cse6) .cse7))) (let ((.cse2 (store (store |c_#memory_$Pointer$.base| .cse5 v_ArrVal_6370) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_6373))) (let ((.cse1 (store (store |c_#memory_$Pointer$.offset| .cse5 (store (select |c_#memory_$Pointer$.offset| .cse5) (+ (select (select |c_#memory_$Pointer$.offset| .cse6) .cse7) 4) |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_6372)) (.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse4 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_81| 4))) (let ((.cse0 (select (select .cse1 .cse3) .cse4))) (or (< .cse0 0) (<= 0 (select (select .cse1 (select (select .cse2 .cse3) .cse4)) (+ .cse0 4))) (< |v_ULTIMATE.start_main_~ptr~0#1.offset_81| 0) (< (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_81|)))))))) is different from false [2021-11-25 20:46:03,431 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~ptr~0#1.offset_81| Int) (v_ArrVal_6370 (Array Int Int)) (v_ArrVal_6373 (Array Int Int)) (v_ArrVal_6372 (Array Int Int))) (let ((.cse6 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (.cse7 (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (let ((.cse5 (select (select |c_#memory_$Pointer$.base| .cse6) .cse7))) (let ((.cse1 (store (store |c_#memory_$Pointer$.base| .cse5 v_ArrVal_6370) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_6373))) (let ((.cse0 (store (store |c_#memory_$Pointer$.offset| .cse5 (store (select |c_#memory_$Pointer$.offset| .cse5) (+ (select (select |c_#memory_$Pointer$.offset| .cse6) .cse7) 4) |c_ULTIMATE.start_dll_append_#t~ret7#1.offset|)) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_6372)) (.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse3 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_81| 4))) (let ((.cse4 (select (select .cse0 .cse2) .cse3))) (or (<= 0 (select (select .cse0 (select (select .cse1 .cse2) .cse3)) (+ .cse4 4))) (< |v_ULTIMATE.start_main_~ptr~0#1.offset_81| 0) (< (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_81|) (< .cse4 0)))))))) is different from false [2021-11-25 20:46:03,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069759378] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:46:03,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [352325254] [2021-11-25 20:46:03,939 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2021-11-25 20:46:03,940 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:46:03,940 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:46:03,940 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:46:03,940 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:46:03,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:03,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:03,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:46:03,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:03,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:03,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:46:03,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:46:03,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:46:04,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:46:04,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:04,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:04,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:46:04,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:46:04,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:46:04,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:46:04,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:46:04,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:46:04,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:46:04,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:46:04,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:46:04,177 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:46:04,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2021-11-25 20:46:04,185 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:46:04,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,187 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:46:04,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:46:04,196 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:46:04,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,198 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:46:04,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 239 [2021-11-25 20:46:04,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:46:04,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 233 [2021-11-25 20:46:04,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 240 treesize of output 221 [2021-11-25 20:46:04,346 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:46:04,546 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-11-25 20:46:04,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 261 treesize of output 250 [2021-11-25 20:46:04,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:46:04,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:04,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:46:04,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:46:04,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:46:04,735 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:46:04,738 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:46:04,741 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:46:04,794 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-11-25 20:46:04,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 261 treesize of output 250 [2021-11-25 20:46:04,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:46:04,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:46:04,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:46:04,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:04,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:46:04,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:04,994 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:46:04,995 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:46:04,998 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:46:05,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:46:05,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:46:05,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:46:05,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:05,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:05,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:46:05,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:05,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:05,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:46:05,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:05,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:46:05,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:05,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:46:05,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:46:05,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:46:05,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:46:05,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:05,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:05,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:05,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:46:05,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:05,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:46:05,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:05,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:46:05,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:05,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:46:05,529 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:46:05,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:46:05,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:46:05,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:46:05,774 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:46:05,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:05,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2021-11-25 20:46:05,787 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:46:06,002 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:46:06,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:46:06,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:46:06,110 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:46:06,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:46:06,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:46:06,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:46:06,244 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:46:06,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:46:06,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:46:06,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:46:06,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:46:06,649 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-25 20:46:06,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2021-11-25 20:46:06,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:46:06,680 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-25 20:46:06,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:46:07,183 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:46:07,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:46:07,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:46:07,440 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:46:07,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 152 treesize of output 198 [2021-11-25 20:46:07,486 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:46:07,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 49 [2021-11-25 20:46:07,614 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 21 for LOIs [2021-11-25 20:46:07,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:46:07,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:46:07,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:07,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:07,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:46:07,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:07,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:46:07,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:46:07,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:07,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:46:07,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:46:07,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:07,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:07,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:07,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:46:07,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:07,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:07,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:07,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:46:07,710 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:46:16,572 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '15689#(and (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (or (< |ULTIMATE.start_main_~ptr~0#1.offset| 0) (< (select |#length| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4))) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_dll_create_~new_head~0#1.offset|) (<= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= |#NULL.base| 0))' at error location [2021-11-25 20:46:16,572 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:46:16,572 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:46:16,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 31] total 52 [2021-11-25 20:46:16,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654560954] [2021-11-25 20:46:16,573 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 20:46:16,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2021-11-25 20:46:16,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:46:16,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-11-25 20:46:16,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=347, Invalid=8039, Unknown=6, NotChecked=920, Total=9312 [2021-11-25 20:46:16,574 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand has 54 states, 46 states have (on average 2.217391304347826) internal successors, (102), 45 states have internal predecessors, (102), 6 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:46:18,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:46:18,269 INFO L93 Difference]: Finished difference Result 104 states and 110 transitions. [2021-11-25 20:46:18,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-25 20:46:18,270 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 46 states have (on average 2.217391304347826) internal successors, (102), 45 states have internal predecessors, (102), 6 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 64 [2021-11-25 20:46:18,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:46:18,270 INFO L225 Difference]: With dead ends: 104 [2021-11-25 20:46:18,270 INFO L226 Difference]: Without dead ends: 104 [2021-11-25 20:46:18,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 89 SyntacticMatches, 8 SemanticMatches, 111 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 3374 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=532, Invalid=11038, Unknown=6, NotChecked=1080, Total=12656 [2021-11-25 20:46:18,271 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 65 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 77 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:46:18,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 953 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1074 Invalid, 0 Unknown, 77 Unchecked, 0.6s Time] [2021-11-25 20:46:18,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-11-25 20:46:18,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 87. [2021-11-25 20:46:18,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 70 states have (on average 1.2285714285714286) internal successors, (86), 81 states have internal predecessors, (86), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:46:18,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 92 transitions. [2021-11-25 20:46:18,274 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 92 transitions. Word has length 64 [2021-11-25 20:46:18,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:46:18,274 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 92 transitions. [2021-11-25 20:46:18,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 46 states have (on average 2.217391304347826) internal successors, (102), 45 states have internal predecessors, (102), 6 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:46:18,275 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 92 transitions. [2021-11-25 20:46:18,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-25 20:46:18,275 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:46:18,275 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:46:18,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-11-25 20:46:18,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:46:18,476 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:46:18,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:46:18,477 INFO L85 PathProgramCache]: Analyzing trace with hash 946014904, now seen corresponding path program 2 times [2021-11-25 20:46:18,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:46:18,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307539608] [2021-11-25 20:46:18,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:46:18,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:46:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:46:21,524 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 16 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:46:21,525 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:46:21,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307539608] [2021-11-25 20:46:21,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307539608] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:46:21,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649080412] [2021-11-25 20:46:21,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 20:46:21,525 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:46:21,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:46:21,526 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:46:21,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-11-25 20:46:22,816 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 20:46:22,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:46:22,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 169 conjunts are in the unsatisfiable core [2021-11-25 20:46:22,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:46:22,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:46:22,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:46:23,044 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:46:23,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:46:23,440 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:46:23,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:46:23,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:23,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:23,794 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:46:23,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 53 [2021-11-25 20:46:23,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 20:46:24,122 INFO L354 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2021-11-25 20:46:24,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 35 [2021-11-25 20:46:24,133 INFO L354 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2021-11-25 20:46:24,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2021-11-25 20:46:24,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:46:24,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:46:24,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:24,664 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 20:46:24,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 92 treesize of output 82 [2021-11-25 20:46:24,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:24,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:24,673 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-25 20:46:24,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 87 [2021-11-25 20:46:24,690 INFO L354 Elim1Store]: treesize reduction 8, result has 77.1 percent of original size [2021-11-25 20:46:24,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 36 [2021-11-25 20:46:25,490 INFO L354 Elim1Store]: treesize reduction 92, result has 18.6 percent of original size [2021-11-25 20:46:25,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 203 treesize of output 97 [2021-11-25 20:46:25,511 INFO L354 Elim1Store]: treesize reduction 84, result has 18.4 percent of original size [2021-11-25 20:46:25,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 184 treesize of output 136 [2021-11-25 20:46:25,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:46:25,700 INFO L354 Elim1Store]: treesize reduction 66, result has 19.5 percent of original size [2021-11-25 20:46:25,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 464 treesize of output 313 [2021-11-25 20:46:25,731 INFO L354 Elim1Store]: treesize reduction 86, result has 18.9 percent of original size [2021-11-25 20:46:25,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 431 treesize of output 333 [2021-11-25 20:46:25,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:25,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 122 [2021-11-25 20:46:27,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:27,146 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:46:27,172 INFO L354 Elim1Store]: treesize reduction 93, result has 10.6 percent of original size [2021-11-25 20:46:27,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 10 case distinctions, treesize of input 305 treesize of output 120 [2021-11-25 20:46:27,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:27,189 INFO L354 Elim1Store]: treesize reduction 24, result has 22.6 percent of original size [2021-11-25 20:46:27,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 37 [2021-11-25 20:46:27,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 20:46:27,278 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 12 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:46:27,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:46:27,955 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~ptr~0#1.offset_89| Int) (v_ArrVal_6616 Int) (v_ArrVal_6614 (Array Int Int)) (v_ArrVal_6617 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_6614))) (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_6617)) (.cse5 (select (select .cse2 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse6 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_89| 4))) (let ((.cse1 (select (select .cse0 .cse5) .cse6))) (or (< (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_89|) (< |v_ULTIMATE.start_main_~ptr~0#1.offset_89| 0) (< .cse1 0) (= |c_ULTIMATE.start_main_~uneq~0#1| (let ((.cse3 (select (select .cse2 .cse5) .cse6)) (.cse4 (+ .cse1 4))) (select (select (store |c_#memory_int| |c_ULTIMATE.start_dll_append_~new_last~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~new_last~0#1.offset| 8) v_ArrVal_6616)) (select (select .cse2 .cse3) .cse4)) (select (select .cse0 .cse3) .cse4))))))))) is different from false [2021-11-25 20:46:28,988 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~ptr~0#1.offset_89| Int) (v_ArrVal_6616 Int) (v_ArrVal_6611 (Array Int Int)) (v_ArrVal_6614 (Array Int Int)) (v_ArrVal_6617 (Array Int Int))) (let ((.cse10 (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4))) (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse10)) (.cse9 (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse10) 4))) (let ((.cse3 (store (store |c_#memory_$Pointer$.base| .cse2 (store (select |c_#memory_$Pointer$.base| .cse2) .cse9 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_6614))) (let ((.cse6 (store (store |c_#memory_$Pointer$.offset| .cse2 (store (select |c_#memory_$Pointer$.offset| .cse2) .cse9 |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_6617)) (.cse7 (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse8 (+ |v_ULTIMATE.start_main_~ptr~0#1.offset_89| 4))) (let ((.cse0 (select (select .cse6 .cse7) .cse8))) (or (< .cse0 0) (< |v_ULTIMATE.start_main_~ptr~0#1.offset_89| 0) (= |c_ULTIMATE.start_main_~uneq~0#1| (let ((.cse4 (select (select .cse3 .cse7) .cse8)) (.cse5 (+ .cse0 4))) (select (select (let ((.cse1 (store |c_#memory_int| .cse2 v_ArrVal_6611))) (store .cse1 |c_ULTIMATE.start_dll_append_~new_last~0#1.base| (store (select .cse1 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~new_last~0#1.offset| 8) v_ArrVal_6616))) (select (select .cse3 .cse4) .cse5)) (select (select .cse6 .cse4) .cse5)))) (< (select (select .cse6 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |v_ULTIMATE.start_main_~ptr~0#1.offset_89|)))))))) is different from false [2021-11-25 20:46:31,016 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:46:31,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 1015 treesize of output 1008 [2021-11-25 20:46:31,058 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:46:31,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23060 treesize of output 21652 [2021-11-25 20:46:31,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24940 treesize of output 21196 [2021-11-25 20:46:35,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 471 treesize of output 3 [2021-11-25 20:46:35,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 471 treesize of output 3 [2021-11-25 20:46:39,279 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:46:39,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4745 treesize of output 3813 [2021-11-25 20:46:43,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649080412] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:46:43,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [839005368] [2021-11-25 20:46:43,447 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2021-11-25 20:46:43,448 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:46:43,448 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:46:43,448 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:46:43,448 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:46:43,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:46:43,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:46:43,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:46:43,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:46:43,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:43,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:43,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:46:43,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:46:43,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:46:43,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:46:43,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:46:43,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:46:43,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:46:43,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:46:43,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:46:43,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:46:43,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:46:43,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:46:43,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:46:43,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:46:43,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,751 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:46:43,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:46:43,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,764 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:46:43,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:46:43,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,813 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:46:43,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:46:43,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:46:43,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:46:43,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:43,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:46:43,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:46:43,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,894 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:46:43,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:46:43,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:46:43,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:46:43,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:43,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:43,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:46:43,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:46:44,030 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:46:44,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2021-11-25 20:46:44,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:44,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:44,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:46:44,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:44,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:44,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:46:44,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:44,106 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:46:44,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 231 [2021-11-25 20:46:44,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:44,115 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:46:44,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 223 [2021-11-25 20:46:44,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:44,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:46:44,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:44,209 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:46:44,219 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:46:44,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 225 treesize of output 223 [2021-11-25 20:46:44,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:44,230 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:46:44,241 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 20:46:44,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 225 treesize of output 227 [2021-11-25 20:46:44,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:44,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:46:44,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:46:44,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:46:44,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:46:44,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:44,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:44,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:46:44,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:44,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:44,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:46:44,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:44,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:46:44,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:44,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:46:44,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:46:44,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:46:44,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:46:44,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:44,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:44,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:44,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:46:44,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:44,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:46:44,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:44,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:46:44,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:44,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:46:44,779 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:46:44,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:46:44,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:46:44,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:46:44,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:44,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:44,878 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:46:44,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2021-11-25 20:46:44,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:46:46,217 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:46:46,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:46:46,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:46:46,325 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:46:46,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:46:46,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:46:46,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:46,409 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:46:46,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2021-11-25 20:46:46,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:46:46,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:46:47,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:46:47,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:46:47,260 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:46:47,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:46:47,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:46:47,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:46:47,617 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-25 20:46:47,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:46:47,644 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-25 20:46:47,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2021-11-25 20:46:47,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:46:48,234 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:46:48,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:46:48,318 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:46:48,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 49 [2021-11-25 20:46:48,458 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:46:48,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 152 treesize of output 198 [2021-11-25 20:46:48,541 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:46:48,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 49 [2021-11-25 20:46:48,592 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 13 for LOIs [2021-11-25 20:46:48,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:46:48,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:46:48,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:48,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:46:48,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:46:48,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:48,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:46:48,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:48,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:46:48,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:46:48,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:48,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:48,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:48,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:46:48,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:48,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:48,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:46:48,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:46:48,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:46:48,668 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:46:59,176 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16313#(and (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (= (select |#valid| |ULTIMATE.start_main_~ptr~0#1.base|) 1) (<= (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4) (select |#length| |ULTIMATE.start_main_~ptr~0#1.base|)) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (not (= |ULTIMATE.start_main_~uneq~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) |ULTIMATE.start_main_~ptr~0#1.offset|))) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_dll_create_~new_head~0#1.offset|) (<= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~ptr~0#1.offset|))' at error location [2021-11-25 20:46:59,176 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:46:59,176 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:46:59,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 33] total 68 [2021-11-25 20:46:59,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113907635] [2021-11-25 20:46:59,176 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 20:46:59,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2021-11-25 20:46:59,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:46:59,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-11-25 20:46:59,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=377, Invalid=11376, Unknown=27, NotChecked=430, Total=12210 [2021-11-25 20:46:59,178 INFO L87 Difference]: Start difference. First operand 87 states and 92 transitions. Second operand has 69 states, 61 states have (on average 1.9344262295081966) internal successors, (118), 58 states have internal predecessors, (118), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:47:03,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:47:03,498 INFO L93 Difference]: Finished difference Result 107 states and 113 transitions. [2021-11-25 20:47:03,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-25 20:47:03,498 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 61 states have (on average 1.9344262295081966) internal successors, (118), 58 states have internal predecessors, (118), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 66 [2021-11-25 20:47:03,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:47:03,499 INFO L225 Difference]: With dead ends: 107 [2021-11-25 20:47:03,500 INFO L226 Difference]: Without dead ends: 107 [2021-11-25 20:47:03,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 91 SyntacticMatches, 5 SemanticMatches, 131 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 4663 ImplicationChecksByTransitivity, 21.5s TimeCoverageRelationStatistics Valid=614, Invalid=16397, Unknown=27, NotChecked=518, Total=17556 [2021-11-25 20:47:03,501 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 80 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 2178 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 2284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 58 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:47:03,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 1443 Invalid, 2284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2178 Invalid, 0 Unknown, 58 Unchecked, 1.3s Time] [2021-11-25 20:47:03,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-11-25 20:47:03,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 88. [2021-11-25 20:47:03,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 82 states have internal predecessors, (87), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:47:03,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 93 transitions. [2021-11-25 20:47:03,505 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 93 transitions. Word has length 66 [2021-11-25 20:47:03,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:47:03,505 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 93 transitions. [2021-11-25 20:47:03,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 61 states have (on average 1.9344262295081966) internal successors, (118), 58 states have internal predecessors, (118), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:47:03,506 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 93 transitions. [2021-11-25 20:47:03,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-25 20:47:03,506 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:47:03,506 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:47:03,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-11-25 20:47:03,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-11-25 20:47:03,731 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:47:03,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:47:03,731 INFO L85 PathProgramCache]: Analyzing trace with hash 946059606, now seen corresponding path program 2 times [2021-11-25 20:47:03,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:47:03,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849597240] [2021-11-25 20:47:03,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:47:03,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:47:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:47:05,940 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 26 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 20:47:05,941 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:47:05,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849597240] [2021-11-25 20:47:05,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849597240] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:47:05,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656958017] [2021-11-25 20:47:05,941 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 20:47:05,941 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:47:05,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:47:05,942 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:47:05,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-11-25 20:47:06,743 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 20:47:06,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:47:06,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 173 conjunts are in the unsatisfiable core [2021-11-25 20:47:06,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:47:06,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:47:06,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:47:06,916 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:47:06,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:47:07,195 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:47:07,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:47:07,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:47:07,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:47:07,512 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:47:07,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 53 [2021-11-25 20:47:07,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 20:47:07,783 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:47:07,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 29 [2021-11-25 20:47:07,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:47:07,791 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:47:07,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 20:47:16,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:16,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:16,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:16,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:16,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:16,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:16,178 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:47:16,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 50 [2021-11-25 20:47:16,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:16,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:16,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:16,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:16,191 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:47:16,200 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:47:16,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 83 treesize of output 68 [2021-11-25 20:47:16,220 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-25 20:47:16,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:47:17,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:17,087 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:47:17,088 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:47:17,118 INFO L354 Elim1Store]: treesize reduction 165, result has 14.1 percent of original size [2021-11-25 20:47:17,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 168 treesize of output 94 [2021-11-25 20:47:17,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:17,126 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 20:47:17,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 73 [2021-11-25 20:47:17,282 INFO L354 Elim1Store]: treesize reduction 69, result has 9.2 percent of original size [2021-11-25 20:47:17,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 382 treesize of output 134 [2021-11-25 20:47:17,312 INFO L354 Elim1Store]: treesize reduction 212, result has 8.2 percent of original size [2021-11-25 20:47:17,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 11 case distinctions, treesize of input 310 treesize of output 178 [2021-11-25 20:47:19,202 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:47:19,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:19,244 INFO L354 Elim1Store]: treesize reduction 240, result has 5.5 percent of original size [2021-11-25 20:47:19,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 14 new quantified variables, introduced 21 case distinctions, treesize of input 339 treesize of output 147 [2021-11-25 20:47:19,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:19,265 INFO L354 Elim1Store]: treesize reduction 35, result has 22.2 percent of original size [2021-11-25 20:47:19,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 6 case distinctions, treesize of input 71 treesize of output 48 [2021-11-25 20:47:19,360 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 20 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 20:47:19,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:47:34,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656958017] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:47:34,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [914177897] [2021-11-25 20:47:34,520 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2021-11-25 20:47:34,520 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:47:34,520 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:47:34,520 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:47:34,521 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:47:34,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:47:34,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:47:34,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:47:34,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:47:34,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:47:34,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:47:34,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:47:34,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:47:34,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:47:34,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:47:34,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:47:34,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:47:34,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:47:34,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:47:34,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:47:34,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:47:34,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:47:34,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:47:34,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:47:34,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,782 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:47:34,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:47:34,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,792 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:47:34,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:47:34,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:47:34,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,850 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:47:34,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:47:34,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:47:34,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:47:34,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:47:34,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:47:34,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:47:34,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,935 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:47:34,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:47:34,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:47:34,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:47:34,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:47:34,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:34,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:47:34,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:47:35,079 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:47:35,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2021-11-25 20:47:35,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:35,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:35,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:47:35,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:35,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:35,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:47:35,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:35,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:47:35,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:35,186 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:47:35,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 231 [2021-11-25 20:47:35,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:35,195 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:47:35,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 223 [2021-11-25 20:47:35,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:35,274 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:47:35,284 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:47:35,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 225 treesize of output 223 [2021-11-25 20:47:35,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:35,293 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:47:35,305 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 20:47:35,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 225 treesize of output 227 [2021-11-25 20:47:35,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:35,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:47:35,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:47:35,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:47:35,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:47:35,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:35,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:47:35,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:47:35,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:47:35,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:35,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:47:35,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:35,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:47:35,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:35,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:47:35,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:47:35,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:47:35,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:47:35,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:47:35,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:47:35,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:35,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:47:35,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:35,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:47:35,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:35,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:47:35,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:35,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:47:35,797 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:47:35,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:47:36,061 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:47:36,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 144 [2021-11-25 20:47:36,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:47:36,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:47:36,451 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:47:36,537 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:47:36,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:47:36,650 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:47:36,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 98 [2021-11-25 20:47:36,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:47:36,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:47:36,759 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:47:36,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:47:36,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:47:36,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:47:37,023 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-25 20:47:37,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2021-11-25 20:47:37,042 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-25 20:47:37,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:47:37,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:47:37,600 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:47:37,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:47:37,845 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:47:37,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 28 [2021-11-25 20:47:37,868 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:47:37,890 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:47:37,898 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:47:37,906 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:47:37,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:37,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2021-11-25 20:47:38,159 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:47:38,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 152 treesize of output 198 [2021-11-25 20:47:38,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:47:38,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:38,442 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:47:38,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 20 [2021-11-25 20:47:38,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:47:38,507 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:47:38,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:38,528 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:47:38,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2021-11-25 20:47:38,658 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 1 for LOIs [2021-11-25 20:47:38,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:47:38,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:47:38,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:47:38,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:47:38,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:47:38,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:38,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:47:38,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:47:38,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:38,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:47:38,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:47:38,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:38,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:38,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:38,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:47:38,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:38,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:38,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:38,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:47:38,744 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:47:47,313 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16940#(and (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_dll_create_~new_head~0#1.offset|) (<= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~ptr~0#1.offset|))' at error location [2021-11-25 20:47:47,313 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:47:47,313 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:47:47,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 31] total 56 [2021-11-25 20:47:47,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177504114] [2021-11-25 20:47:47,314 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 20:47:47,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2021-11-25 20:47:47,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:47:47,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-11-25 20:47:47,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=312, Invalid=8804, Unknown=4, NotChecked=0, Total=9120 [2021-11-25 20:47:47,316 INFO L87 Difference]: Start difference. First operand 88 states and 93 transitions. Second operand has 57 states, 51 states have (on average 2.019607843137255) internal successors, (103), 48 states have internal predecessors, (103), 6 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:47:55,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:47:55,386 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2021-11-25 20:47:55,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-25 20:47:55,387 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 51 states have (on average 2.019607843137255) internal successors, (103), 48 states have internal predecessors, (103), 6 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 66 [2021-11-25 20:47:55,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:47:55,387 INFO L225 Difference]: With dead ends: 75 [2021-11-25 20:47:55,388 INFO L226 Difference]: Without dead ends: 75 [2021-11-25 20:47:55,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 98 SyntacticMatches, 6 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3191 ImplicationChecksByTransitivity, 41.7s TimeCoverageRelationStatistics Valid=437, Invalid=11989, Unknown=6, NotChecked=0, Total=12432 [2021-11-25 20:47:55,389 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 27 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 84 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:47:55,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 860 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1192 Invalid, 0 Unknown, 84 Unchecked, 0.8s Time] [2021-11-25 20:47:55,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-25 20:47:55,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-11-25 20:47:55,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 63 states have (on average 1.1111111111111112) internal successors, (70), 69 states have internal predecessors, (70), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-25 20:47:55,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 76 transitions. [2021-11-25 20:47:55,391 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 76 transitions. Word has length 66 [2021-11-25 20:47:55,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:47:55,392 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 76 transitions. [2021-11-25 20:47:55,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 51 states have (on average 2.019607843137255) internal successors, (103), 48 states have internal predecessors, (103), 6 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-25 20:47:55,392 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2021-11-25 20:47:55,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-25 20:47:55,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:47:55,393 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:47:55,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-11-25 20:47:55,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-11-25 20:47:55,615 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 43 more)] === [2021-11-25 20:47:55,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:47:55,616 INFO L85 PathProgramCache]: Analyzing trace with hash -738307926, now seen corresponding path program 1 times [2021-11-25 20:47:55,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:47:55,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743813415] [2021-11-25 20:47:55,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:47:55,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:47:55,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:47:55,722 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-25 20:47:55,722 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:47:55,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743813415] [2021-11-25 20:47:55,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743813415] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:47:55,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685953015] [2021-11-25 20:47:55,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:47:55,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:47:55,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:47:55,730 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:47:55,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_508bd230-0c8e-43ef-ab9a-e796c1353ccf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-11-25 20:47:56,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:47:56,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-25 20:47:56,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:47:56,411 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-25 20:47:56,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:47:56,553 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-25 20:47:56,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685953015] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:47:56,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [100588246] [2021-11-25 20:47:56,554 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-25 20:47:56,554 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:47:56,555 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:47:56,555 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:47:56,555 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:47:56,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:47:56,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:47:56,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:47:56,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:47:56,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:47:56,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:47:56,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:47:56,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:47:56,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:47:56,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:47:56,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:47:56,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:47:56,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:47:56,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:47:56,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:47:56,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:47:56,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:47:56,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:47:56,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:47:56,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:47:56,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,817 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:47:56,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:47:56,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,826 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:47:56,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:47:56,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,881 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:47:56,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:47:56,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:47:56,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:47:56,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:47:56,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:47:56,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:47:56,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:56,988 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:47:56,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 20:47:57,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 20:47:57,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:47:57,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:57,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:47:57,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:47:57,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:57,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:47:57,115 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:47:57,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 244 [2021-11-25 20:47:57,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:57,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:57,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:47:57,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:57,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:57,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 235 [2021-11-25 20:47:57,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:57,189 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:47:57,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 231 [2021-11-25 20:47:57,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:57,197 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:47:57,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 223 [2021-11-25 20:47:57,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:57,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:47:57,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:57,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:47:57,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:57,299 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:47:57,308 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:47:57,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 225 treesize of output 223 [2021-11-25 20:47:57,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:57,318 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:47:57,329 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 20:47:57,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 225 treesize of output 227 [2021-11-25 20:47:57,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:47:57,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:47:57,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:47:57,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:47:57,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:47:57,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:57,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:47:57,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:57,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:47:57,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:57,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:47:57,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:57,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:47:57,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:47:57,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:47:57,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:47:57,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:47:57,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:57,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:47:57,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:47:57,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:57,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:47:57,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:57,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:47:57,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:57,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:47:57,788 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:47:57,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:47:57,863 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:47:57,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 49 [2021-11-25 20:47:57,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:47:57,942 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:47:57,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:47:58,045 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:47:58,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:47:58,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-25 20:47:58,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:47:58,129 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:47:58,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 37 [2021-11-25 20:47:58,349 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:47:58,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:47:58,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:47:58,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:47:58,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:47:58,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:47:58,639 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-25 20:47:58,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2021-11-25 20:47:58,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:47:58,666 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-25 20:47:58,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:47:59,259 INFO L354 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2021-11-25 20:47:59,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 141 treesize of output 187 [2021-11-25 20:47:59,319 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:47:59,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 49