./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/sll2c_prepend_unequal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/sll2c_prepend_unequal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI --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 f2f6ef7968fa573a7da88ae0a516f1d800f437d82b0fa75227e8d7d318952eb1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 01:53:12,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:53:12,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:53:12,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:53:12,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:53:12,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:53:12,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:53:12,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:53:12,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:53:12,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:53:12,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:53:12,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:53:12,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:53:12,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:53:12,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:53:12,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:53:12,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:53:12,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:53:12,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:53:12,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:53:12,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:53:12,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:53:12,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:53:12,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:53:12,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:53:12,896 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:53:12,897 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:53:12,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:53:12,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:53:12,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:53:12,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:53:12,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:53:12,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:53:12,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:53:12,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:53:12,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:53:12,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:53:12,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:53:12,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:53:12,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:53:12,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:53:12,913 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-03 01:53:12,945 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:53:12,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:53:12,946 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:53:12,946 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:53:12,947 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:53:12,947 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:53:12,948 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:53:12,948 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:53:12,948 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:53:12,949 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:53:12,949 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:53:12,959 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:53:12,959 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:53:12,960 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:53:12,960 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:53:12,960 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:53:12,960 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:53:12,961 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:53:12,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-03 01:53:12,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-03 01:53:12,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:53:12,962 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 01:53:12,963 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 01:53:12,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:53:12,963 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 01:53:12,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:53:12,964 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-03 01:53:12,964 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-03 01:53:12,964 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-03 01:53:12,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:53:12,965 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 01:53:12,965 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 01:53:12,966 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:53:12,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:53:12,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:53:12,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:53:12,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:53:12,967 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:53:12,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:53:12,968 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:53:12,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:53:12,968 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:53:12,968 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2f6ef7968fa573a7da88ae0a516f1d800f437d82b0fa75227e8d7d318952eb1 [2022-11-03 01:53:13,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:53:13,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:53:13,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:53:13,374 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:53:13,375 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:53:13,377 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/list-simple/sll2c_prepend_unequal.i [2022-11-03 01:53:13,461 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/data/3c02a69dc/7eddb3a8f66046589cc92d74e7fd370e/FLAG410e58e92 [2022-11-03 01:53:14,103 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:53:14,104 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/sv-benchmarks/c/list-simple/sll2c_prepend_unequal.i [2022-11-03 01:53:14,124 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/data/3c02a69dc/7eddb3a8f66046589cc92d74e7fd370e/FLAG410e58e92 [2022-11-03 01:53:14,361 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/data/3c02a69dc/7eddb3a8f66046589cc92d74e7fd370e [2022-11-03 01:53:14,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:53:14,369 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:53:14,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:53:14,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:53:14,378 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:53:14,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:53:14" (1/1) ... [2022-11-03 01:53:14,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7012ca17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:14, skipping insertion in model container [2022-11-03 01:53:14,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:53:14" (1/1) ... [2022-11-03 01:53:14,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:53:14,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:53:14,854 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_ffbafde6-638f-44d7-9c41-68b19a5c5a65/sv-benchmarks/c/list-simple/sll2c_prepend_unequal.i[24547,24560] [2022-11-03 01:53:14,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:53:14,867 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:53:14,924 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_ffbafde6-638f-44d7-9c41-68b19a5c5a65/sv-benchmarks/c/list-simple/sll2c_prepend_unequal.i[24547,24560] [2022-11-03 01:53:14,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:53:14,965 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:53:14,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:14 WrapperNode [2022-11-03 01:53:14,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:53:14,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:53:14,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:53:14,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:53:14,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:14" (1/1) ... [2022-11-03 01:53:15,027 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:14" (1/1) ... [2022-11-03 01:53:15,075 INFO L138 Inliner]: procedures = 127, calls = 45, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 152 [2022-11-03 01:53:15,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:53:15,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:53:15,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:53:15,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:53:15,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:14" (1/1) ... [2022-11-03 01:53:15,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:14" (1/1) ... [2022-11-03 01:53:15,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:14" (1/1) ... [2022-11-03 01:53:15,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:14" (1/1) ... [2022-11-03 01:53:15,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:14" (1/1) ... [2022-11-03 01:53:15,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:14" (1/1) ... [2022-11-03 01:53:15,139 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:14" (1/1) ... [2022-11-03 01:53:15,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:14" (1/1) ... [2022-11-03 01:53:15,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:53:15,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:53:15,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:53:15,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:53:15,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:14" (1/1) ... [2022-11-03 01:53:15,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:53:15,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:53:15,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:53:15,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:53:15,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:53:15,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:53:15,263 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2022-11-03 01:53:15,263 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2022-11-03 01:53:15,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:53:15,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:53:15,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:53:15,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:53:15,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:53:15,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:53:15,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:53:15,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:53:15,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:53:15,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:53:15,458 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:53:15,461 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:53:16,026 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:53:16,098 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:53:16,099 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-03 01:53:16,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:53:16 BoogieIcfgContainer [2022-11-03 01:53:16,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:53:16,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:53:16,106 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:53:16,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:53:16,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:53:14" (1/3) ... [2022-11-03 01:53:16,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a5f6bec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:53:16, skipping insertion in model container [2022-11-03 01:53:16,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:14" (2/3) ... [2022-11-03 01:53:16,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a5f6bec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:53:16, skipping insertion in model container [2022-11-03 01:53:16,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:53:16" (3/3) ... [2022-11-03 01:53:16,123 INFO L112 eAbstractionObserver]: Analyzing ICFG sll2c_prepend_unequal.i [2022-11-03 01:53:16,148 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:53:16,148 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2022-11-03 01:53:16,238 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:53:16,250 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@155dae3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:53:16,251 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2022-11-03 01:53:16,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 50 states have (on average 2.36) internal successors, (118), 106 states have internal predecessors, (118), 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) [2022-11-03 01:53:16,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-03 01:53:16,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:16,316 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-03 01:53:16,318 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting node_createErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:53:16,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:16,330 INFO L85 PathProgramCache]: Analyzing trace with hash 230586501, now seen corresponding path program 1 times [2022-11-03 01:53:16,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:16,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044498376] [2022-11-03 01:53:16,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:16,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:16,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:53:16,745 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:16,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044498376] [2022-11-03 01:53:16,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044498376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:53:16,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:53:16,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:53:16,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912507517] [2022-11-03 01:53:16,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:53:16,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:53:16,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:16,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:53:16,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:53:16,818 INFO L87 Difference]: Start difference. First operand has 111 states, 50 states have (on average 2.36) internal successors, (118), 106 states have internal predecessors, (118), 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-03 01:53:17,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:17,120 INFO L93 Difference]: Finished difference Result 109 states and 119 transitions. [2022-11-03 01:53:17,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:53:17,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 5 [2022-11-03 01:53:17,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:17,150 INFO L225 Difference]: With dead ends: 109 [2022-11-03 01:53:17,156 INFO L226 Difference]: Without dead ends: 107 [2022-11-03 01:53:17,159 INFO L412 NwaCegarLoop]: 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 [2022-11-03 01:53:17,163 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 6 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:17,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 152 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:53:17,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-03 01:53:17,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-11-03 01:53:17,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 49 states have (on average 2.2448979591836733) internal successors, (110), 102 states have internal predecessors, (110), 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) [2022-11-03 01:53:17,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 116 transitions. [2022-11-03 01:53:17,249 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 116 transitions. Word has length 5 [2022-11-03 01:53:17,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:17,250 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 116 transitions. [2022-11-03 01:53:17,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-03 01:53:17,252 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 116 transitions. [2022-11-03 01:53:17,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-03 01:53:17,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:17,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-03 01:53:17,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:53:17,254 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting node_createErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:53:17,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:17,255 INFO L85 PathProgramCache]: Analyzing trace with hash 230586502, now seen corresponding path program 1 times [2022-11-03 01:53:17,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:17,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868306720] [2022-11-03 01:53:17,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:17,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:17,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:53:17,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:17,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868306720] [2022-11-03 01:53:17,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868306720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:53:17,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:53:17,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:53:17,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861073570] [2022-11-03 01:53:17,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:53:17,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:53:17,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:17,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:53:17,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:53:17,440 INFO L87 Difference]: Start difference. First operand 107 states and 116 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-03 01:53:17,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:17,579 INFO L93 Difference]: Finished difference Result 105 states and 114 transitions. [2022-11-03 01:53:17,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:53:17,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 5 [2022-11-03 01:53:17,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:17,582 INFO L225 Difference]: With dead ends: 105 [2022-11-03 01:53:17,583 INFO L226 Difference]: Without dead ends: 105 [2022-11-03 01:53:17,583 INFO L412 NwaCegarLoop]: 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 [2022-11-03 01:53:17,585 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 2 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:17,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 157 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:53:17,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-11-03 01:53:17,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2022-11-03 01:53:17,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 49 states have (on average 2.204081632653061) internal successors, (108), 100 states have internal predecessors, (108), 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) [2022-11-03 01:53:17,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 114 transitions. [2022-11-03 01:53:17,598 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 114 transitions. Word has length 5 [2022-11-03 01:53:17,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:17,599 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 114 transitions. [2022-11-03 01:53:17,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-03 01:53:17,599 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 114 transitions. [2022-11-03 01:53:17,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 01:53:17,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:17,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:53:17,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:53:17,601 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:53:17,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:17,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1950908672, now seen corresponding path program 1 times [2022-11-03 01:53:17,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:17,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123004963] [2022-11-03 01:53:17,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:17,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:17,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:17,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:53:17,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:17,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123004963] [2022-11-03 01:53:17,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123004963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:53:17,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:53:17,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:53:17,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479570382] [2022-11-03 01:53:17,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:53:17,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:53:17,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:17,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:53:17,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:53:17,757 INFO L87 Difference]: Start difference. First operand 105 states and 114 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-03 01:53:17,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:17,810 INFO L93 Difference]: Finished difference Result 111 states and 121 transitions. [2022-11-03 01:53:17,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:53:17,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 10 [2022-11-03 01:53:17,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:17,813 INFO L225 Difference]: With dead ends: 111 [2022-11-03 01:53:17,813 INFO L226 Difference]: Without dead ends: 111 [2022-11-03 01:53:17,814 INFO L412 NwaCegarLoop]: 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 [2022-11-03 01:53:17,815 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 4 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:17,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 195 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:53:17,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-11-03 01:53:17,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 106. [2022-11-03 01:53:17,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 50 states have (on average 2.18) internal successors, (109), 101 states have internal predecessors, (109), 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) [2022-11-03 01:53:17,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 115 transitions. [2022-11-03 01:53:17,828 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 115 transitions. Word has length 10 [2022-11-03 01:53:17,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:17,829 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 115 transitions. [2022-11-03 01:53:17,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-03 01:53:17,829 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 115 transitions. [2022-11-03 01:53:17,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 01:53:17,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:17,831 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:53:17,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:53:17,831 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:53:17,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:17,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1604454864, now seen corresponding path program 1 times [2022-11-03 01:53:17,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:17,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071779336] [2022-11-03 01:53:17,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:17,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:18,009 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:53:18,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:18,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071779336] [2022-11-03 01:53:18,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071779336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:53:18,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:53:18,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:53:18,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993412277] [2022-11-03 01:53:18,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:53:18,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:53:18,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:18,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:53:18,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:53:18,013 INFO L87 Difference]: Start difference. First operand 106 states and 115 transitions. Second operand has 6 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 01:53:18,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:18,331 INFO L93 Difference]: Finished difference Result 106 states and 116 transitions. [2022-11-03 01:53:18,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:53:18,332 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-11-03 01:53:18,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:18,340 INFO L225 Difference]: With dead ends: 106 [2022-11-03 01:53:18,340 INFO L226 Difference]: Without dead ends: 106 [2022-11-03 01:53:18,341 INFO L412 NwaCegarLoop]: 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 [2022-11-03 01:53:18,351 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 9 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:18,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 302 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 01:53:18,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-03 01:53:18,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2022-11-03 01:53:18,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 50 states have (on average 2.16) internal successors, (108), 100 states have internal predecessors, (108), 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) [2022-11-03 01:53:18,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 114 transitions. [2022-11-03 01:53:18,368 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 114 transitions. Word has length 17 [2022-11-03 01:53:18,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:18,369 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 114 transitions. [2022-11-03 01:53:18,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 01:53:18,370 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 114 transitions. [2022-11-03 01:53:18,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 01:53:18,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:18,371 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:53:18,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 01:53:18,371 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:53:18,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:18,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1604454863, now seen corresponding path program 1 times [2022-11-03 01:53:18,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:18,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031268224] [2022-11-03 01:53:18,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:18,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:18,792 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 01:53:18,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:18,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031268224] [2022-11-03 01:53:18,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031268224] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:53:18,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:53:18,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:53:18,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959943377] [2022-11-03 01:53:18,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:53:18,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:53:18,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:18,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:53:18,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:53:18,799 INFO L87 Difference]: Start difference. First operand 105 states and 114 transitions. Second operand has 6 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 01:53:19,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:19,104 INFO L93 Difference]: Finished difference Result 105 states and 115 transitions. [2022-11-03 01:53:19,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:53:19,105 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-11-03 01:53:19,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:19,106 INFO L225 Difference]: With dead ends: 105 [2022-11-03 01:53:19,106 INFO L226 Difference]: Without dead ends: 105 [2022-11-03 01:53:19,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-03 01:53:19,108 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 7 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:19,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 326 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 01:53:19,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-11-03 01:53:19,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2022-11-03 01:53:19,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 50 states have (on average 2.14) internal successors, (107), 99 states have internal predecessors, (107), 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) [2022-11-03 01:53:19,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 113 transitions. [2022-11-03 01:53:19,117 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 113 transitions. Word has length 17 [2022-11-03 01:53:19,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:19,118 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 113 transitions. [2022-11-03 01:53:19,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 01:53:19,119 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 113 transitions. [2022-11-03 01:53:19,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 01:53:19,119 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:19,120 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:53:19,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:53:19,120 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:53:19,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:19,121 INFO L85 PathProgramCache]: Analyzing trace with hash 12336050, now seen corresponding path program 1 times [2022-11-03 01:53:19,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:19,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114453591] [2022-11-03 01:53:19,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:19,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:19,508 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 01:53:19,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:19,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114453591] [2022-11-03 01:53:19,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114453591] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:53:19,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376051950] [2022-11-03 01:53:19,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:19,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:53:19,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:53:19,512 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:53:19,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:53:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:19,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 01:53:19,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:53:19,811 INFO L390 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 [2022-11-03 01:53:19,964 INFO L356 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2022-11-03 01:53:19,965 INFO L390 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 [2022-11-03 01:53:20,075 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 01:53:20,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:53:20,555 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 01:53:20,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376051950] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:53:20,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [547225725] [2022-11-03 01:53:20,580 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-03 01:53:20,580 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:53:20,586 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:53:20,592 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:53:20,593 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:53:20,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:20,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:20,672 INFO L390 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 [2022-11-03 01:53:20,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:20,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:20,785 INFO L390 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 [2022-11-03 01:53:20,833 INFO L390 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 [2022-11-03 01:53:20,841 INFO L390 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 [2022-11-03 01:53:20,866 INFO L390 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 [2022-11-03 01:53:20,876 INFO L390 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 15 treesize of output 1 [2022-11-03 01:53:20,885 INFO L390 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 [2022-11-03 01:53:20,900 INFO L390 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 [2022-11-03 01:53:20,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:20,911 INFO L390 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 [2022-11-03 01:53:20,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:20,923 INFO L390 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 [2022-11-03 01:53:20,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:20,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:20,966 INFO L390 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 [2022-11-03 01:53:21,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:21,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:21,015 INFO L390 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 [2022-11-03 01:53:21,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:21,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:21,065 INFO L390 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 [2022-11-03 01:53:21,421 INFO L356 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-03 01:53:21,422 INFO L390 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 208 treesize of output 197 [2022-11-03 01:53:21,697 INFO L390 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 9 treesize of output 3 [2022-11-03 01:53:21,713 INFO L390 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 [2022-11-03 01:53:21,727 INFO L390 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 [2022-11-03 01:53:21,744 INFO L390 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 [2022-11-03 01:53:21,757 INFO L390 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 [2022-11-03 01:53:21,785 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:21,788 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:21,792 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:21,795 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:21,797 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:21,914 INFO L356 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-03 01:53:21,915 INFO L390 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 208 treesize of output 197 [2022-11-03 01:53:22,221 INFO L390 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 [2022-11-03 01:53:22,235 INFO L390 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 [2022-11-03 01:53:22,250 INFO L390 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 9 treesize of output 3 [2022-11-03 01:53:22,264 INFO L390 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 [2022-11-03 01:53:22,277 INFO L390 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 [2022-11-03 01:53:22,294 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:22,296 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:22,299 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:22,301 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:22,305 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:22,379 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2022-11-03 01:53:22,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:22,393 INFO L390 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 11 [2022-11-03 01:53:22,411 INFO L390 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 19 treesize of output 11 [2022-11-03 01:53:22,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:22,733 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 117 [2022-11-03 01:53:22,748 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:53:22,750 INFO L390 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 129 treesize of output 117 [2022-11-03 01:53:22,763 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:53:22,765 INFO L390 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 121 treesize of output 109 [2022-11-03 01:53:23,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:23,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:23,173 INFO L390 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 [2022-11-03 01:53:23,210 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 65 for LOIs [2022-11-03 01:53:23,571 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:53:29,220 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1328#(and (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (not (= (select |#valid| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) 1)) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-03 01:53:29,220 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:53:29,220 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:53:29,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 17 [2022-11-03 01:53:29,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538952244] [2022-11-03 01:53:29,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 01:53:29,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-03 01:53:29,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:29,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-03 01:53:29,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=749, Unknown=0, NotChecked=0, Total=870 [2022-11-03 01:53:29,223 INFO L87 Difference]: Start difference. First operand 104 states and 113 transitions. Second operand has 18 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 2 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 01:53:29,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:29,703 INFO L93 Difference]: Finished difference Result 120 states and 130 transitions. [2022-11-03 01:53:29,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:53:29,703 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 2 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 19 [2022-11-03 01:53:29,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:29,705 INFO L225 Difference]: With dead ends: 120 [2022-11-03 01:53:29,705 INFO L226 Difference]: Without dead ends: 120 [2022-11-03 01:53:29,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=133, Invalid=797, Unknown=0, NotChecked=0, Total=930 [2022-11-03 01:53:29,706 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 200 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 64 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:29,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 473 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 408 Invalid, 0 Unknown, 64 Unchecked, 0.4s Time] [2022-11-03 01:53:29,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-11-03 01:53:29,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 103. [2022-11-03 01:53:29,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 50 states have (on average 2.12) internal successors, (106), 98 states have internal predecessors, (106), 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) [2022-11-03 01:53:29,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 112 transitions. [2022-11-03 01:53:29,714 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 112 transitions. Word has length 19 [2022-11-03 01:53:29,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:29,714 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 112 transitions. [2022-11-03 01:53:29,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 2 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 01:53:29,715 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 112 transitions. [2022-11-03 01:53:29,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 01:53:29,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:29,716 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:53:29,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 01:53:29,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:53:29,933 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:53:29,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:29,934 INFO L85 PathProgramCache]: Analyzing trace with hash 12336051, now seen corresponding path program 1 times [2022-11-03 01:53:29,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:29,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438633536] [2022-11-03 01:53:29,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:29,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:30,284 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 01:53:30,284 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:30,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438633536] [2022-11-03 01:53:30,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438633536] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:53:30,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995833740] [2022-11-03 01:53:30,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:30,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:53:30,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:53:30,287 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:53:30,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 01:53:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:30,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-03 01:53:30,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:53:30,458 INFO L390 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 [2022-11-03 01:53:30,465 INFO L390 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 [2022-11-03 01:53:30,753 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 01:53:30,753 INFO L390 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 18 [2022-11-03 01:53:30,771 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:53:30,772 INFO L390 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 [2022-11-03 01:53:30,844 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:53:30,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:53:31,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995833740] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:53:31,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [407204436] [2022-11-03 01:53:31,052 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-03 01:53:31,052 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:53:31,053 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:53:31,053 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:53:31,053 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:53:31,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:31,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:31,078 INFO L390 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 [2022-11-03 01:53:31,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:31,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:31,113 INFO L390 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 [2022-11-03 01:53:31,129 INFO L390 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 [2022-11-03 01:53:31,140 INFO L390 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 [2022-11-03 01:53:31,149 INFO L390 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 [2022-11-03 01:53:31,157 INFO L390 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 15 treesize of output 1 [2022-11-03 01:53:31,165 INFO L390 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 [2022-11-03 01:53:31,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:31,177 INFO L390 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 [2022-11-03 01:53:31,184 INFO L390 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 [2022-11-03 01:53:31,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:31,194 INFO L390 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 [2022-11-03 01:53:31,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:31,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:31,226 INFO L390 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 [2022-11-03 01:53:31,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:31,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:31,269 INFO L390 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 [2022-11-03 01:53:31,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:31,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:31,308 INFO L390 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 [2022-11-03 01:53:31,529 INFO L356 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-03 01:53:31,530 INFO L390 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 208 treesize of output 197 [2022-11-03 01:53:31,827 INFO L390 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 [2022-11-03 01:53:31,840 INFO L390 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 [2022-11-03 01:53:31,858 INFO L390 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 [2022-11-03 01:53:31,885 INFO L390 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 [2022-11-03 01:53:31,898 INFO L390 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 [2022-11-03 01:53:31,915 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:31,919 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:31,921 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:31,923 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:32,033 INFO L356 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-03 01:53:32,034 INFO L390 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 208 treesize of output 197 [2022-11-03 01:53:32,298 INFO L390 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 [2022-11-03 01:53:32,310 INFO L390 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 [2022-11-03 01:53:32,322 INFO L390 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 [2022-11-03 01:53:32,334 INFO L390 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 [2022-11-03 01:53:32,346 INFO L390 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 [2022-11-03 01:53:32,365 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:32,367 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:32,370 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:32,374 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:32,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:32,441 INFO L390 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 11 [2022-11-03 01:53:32,461 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2022-11-03 01:53:32,473 INFO L390 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 19 treesize of output 11 [2022-11-03 01:53:32,709 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:53:32,718 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:53:32,743 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:53:33,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:33,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:33,111 INFO L390 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 [2022-11-03 01:53:33,123 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 65 for LOIs [2022-11-03 01:53:33,412 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:53:39,149 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1654#(and (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (< (select |#length| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (+ |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 4)) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-03 01:53:39,149 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:53:39,149 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:53:39,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 17 [2022-11-03 01:53:39,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628621672] [2022-11-03 01:53:39,150 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 01:53:39,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-03 01:53:39,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:39,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-03 01:53:39,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=888, Unknown=0, NotChecked=0, Total=992 [2022-11-03 01:53:39,152 INFO L87 Difference]: Start difference. First operand 103 states and 112 transitions. Second operand has 18 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 01:53:40,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:40,062 INFO L93 Difference]: Finished difference Result 104 states and 114 transitions. [2022-11-03 01:53:40,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 01:53:40,062 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 19 [2022-11-03 01:53:40,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:40,063 INFO L225 Difference]: With dead ends: 104 [2022-11-03 01:53:40,064 INFO L226 Difference]: Without dead ends: 104 [2022-11-03 01:53:40,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=139, Invalid=1193, Unknown=0, NotChecked=0, Total=1332 [2022-11-03 01:53:40,065 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 4 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 119 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:40,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 734 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 707 Invalid, 0 Unknown, 119 Unchecked, 0.7s Time] [2022-11-03 01:53:40,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-03 01:53:40,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 102. [2022-11-03 01:53:40,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 50 states have (on average 2.1) internal successors, (105), 97 states have internal predecessors, (105), 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) [2022-11-03 01:53:40,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 111 transitions. [2022-11-03 01:53:40,085 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 111 transitions. Word has length 19 [2022-11-03 01:53:40,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:40,085 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 111 transitions. [2022-11-03 01:53:40,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 01:53:40,092 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 111 transitions. [2022-11-03 01:53:40,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 01:53:40,097 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:40,097 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:53:40,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 01:53:40,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-03 01:53:40,301 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:53:40,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:40,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1782829441, now seen corresponding path program 1 times [2022-11-03 01:53:40,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:40,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713048963] [2022-11-03 01:53:40,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:40,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:41,001 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:53:41,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:41,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713048963] [2022-11-03 01:53:41,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713048963] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:53:41,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182327436] [2022-11-03 01:53:41,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:41,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:53:41,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:53:41,004 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:53:41,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 01:53:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:41,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-03 01:53:41,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:53:41,186 INFO L390 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 [2022-11-03 01:53:41,198 INFO L390 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 [2022-11-03 01:53:41,365 INFO L356 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2022-11-03 01:53:41,366 INFO L390 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 [2022-11-03 01:53:41,504 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 01:53:41,504 INFO L390 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 [2022-11-03 01:53:41,527 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 01:53:41,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:53:42,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1182327436] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:53:42,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [106520606] [2022-11-03 01:53:42,138 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-11-03 01:53:42,138 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:53:42,139 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:53:42,139 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:53:42,139 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:53:42,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:42,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:42,163 INFO L390 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 [2022-11-03 01:53:42,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:42,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:42,227 INFO L390 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 [2022-11-03 01:53:42,241 INFO L390 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 [2022-11-03 01:53:42,246 INFO L390 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 [2022-11-03 01:53:42,256 INFO L390 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 [2022-11-03 01:53:42,263 INFO L390 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 [2022-11-03 01:53:42,269 INFO L390 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 15 treesize of output 1 [2022-11-03 01:53:42,280 INFO L390 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 [2022-11-03 01:53:42,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:42,289 INFO L390 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 [2022-11-03 01:53:42,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:42,299 INFO L390 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 [2022-11-03 01:53:42,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:42,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:42,328 INFO L390 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 [2022-11-03 01:53:42,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:42,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:42,366 INFO L390 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 [2022-11-03 01:53:42,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:42,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:42,407 INFO L390 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 [2022-11-03 01:53:42,582 INFO L356 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-03 01:53:42,583 INFO L390 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 208 treesize of output 197 [2022-11-03 01:53:42,873 INFO L390 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 [2022-11-03 01:53:42,884 INFO L390 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 [2022-11-03 01:53:42,896 INFO L390 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 [2022-11-03 01:53:42,909 INFO L390 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 [2022-11-03 01:53:42,921 INFO L390 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 [2022-11-03 01:53:42,939 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:42,941 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:42,944 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:42,946 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:43,044 INFO L356 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-03 01:53:43,045 INFO L390 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 208 treesize of output 197 [2022-11-03 01:53:43,329 INFO L390 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 [2022-11-03 01:53:43,340 INFO L390 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 9 treesize of output 3 [2022-11-03 01:53:43,357 INFO L390 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 [2022-11-03 01:53:43,371 INFO L390 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 [2022-11-03 01:53:43,385 INFO L390 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 [2022-11-03 01:53:43,400 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:43,403 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:43,405 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:43,408 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:43,414 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:53:43,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:43,490 INFO L390 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 11 [2022-11-03 01:53:43,508 INFO L390 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 19 treesize of output 11 [2022-11-03 01:53:43,526 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2022-11-03 01:53:43,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:43,827 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 117 [2022-11-03 01:53:43,845 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:53:43,846 INFO L390 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 129 treesize of output 117 [2022-11-03 01:53:43,867 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:53:43,868 INFO L390 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 125 treesize of output 113 [2022-11-03 01:53:44,229 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:53:44,257 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:53:44,271 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:53:44,445 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:53:44,451 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:53:44,452 INFO L390 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 15 treesize of output 7 [2022-11-03 01:53:44,477 INFO L390 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 [2022-11-03 01:53:44,490 INFO L390 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 [2022-11-03 01:53:44,506 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:53:44,513 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:53:44,513 INFO L390 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 15 treesize of output 7 [2022-11-03 01:53:44,717 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:53:44,724 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:53:44,725 INFO L390 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 15 treesize of output 7 [2022-11-03 01:53:44,742 INFO L390 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 [2022-11-03 01:53:44,758 INFO L390 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 [2022-11-03 01:53:44,776 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:53:44,783 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:53:44,783 INFO L390 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 15 treesize of output 7 [2022-11-03 01:53:45,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:45,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:45,010 INFO L390 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 [2022-11-03 01:53:45,023 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 21 for LOIs [2022-11-03 01:53:45,034 INFO L390 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 [2022-11-03 01:53:45,040 INFO L390 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 [2022-11-03 01:53:45,061 INFO L390 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 15 treesize of output 1 [2022-11-03 01:53:45,068 INFO L390 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 [2022-11-03 01:53:45,077 INFO L390 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 [2022-11-03 01:53:45,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:45,104 INFO L390 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 [2022-11-03 01:53:45,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:45,114 INFO L390 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 [2022-11-03 01:53:45,125 INFO L390 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 [2022-11-03 01:53:45,128 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:53:48,746 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2047#(and (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= |ULTIMATE.start_sll_circular_prepend_~data#1| 5) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (not (= (select |#valid| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) 1)) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (<= 5 |ULTIMATE.start_sll_circular_prepend_~data#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (= 0 |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset|) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |#NULL.offset| 0) (<= |ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0) (<= 5 |ULTIMATE.start_sll_circular_prepend_#in~data#1|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.base|) (<= |ULTIMATE.start_sll_circular_prepend_#in~data#1| 5) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-03 01:53:48,746 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:53:48,746 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:53:48,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 15 [2022-11-03 01:53:48,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080323896] [2022-11-03 01:53:48,747 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 01:53:48,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-03 01:53:48,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:48,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-03 01:53:48,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=1252, Unknown=0, NotChecked=0, Total=1406 [2022-11-03 01:53:48,750 INFO L87 Difference]: Start difference. First operand 102 states and 111 transitions. Second operand has 17 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 14 states have internal predecessors, (35), 3 states have call successors, (4), 1 states have call predecessors, (4), 5 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-03 01:53:49,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:49,348 INFO L93 Difference]: Finished difference Result 110 states and 120 transitions. [2022-11-03 01:53:49,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:53:49,349 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 14 states have internal predecessors, (35), 3 states have call successors, (4), 1 states have call predecessors, (4), 5 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 27 [2022-11-03 01:53:49,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:49,351 INFO L225 Difference]: With dead ends: 110 [2022-11-03 01:53:49,351 INFO L226 Difference]: Without dead ends: 110 [2022-11-03 01:53:49,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 45 SyntacticMatches, 8 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=192, Invalid=1448, Unknown=0, NotChecked=0, Total=1640 [2022-11-03 01:53:49,353 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 341 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 69 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:49,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 369 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 478 Invalid, 0 Unknown, 69 Unchecked, 0.5s Time] [2022-11-03 01:53:49,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-11-03 01:53:49,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 93. [2022-11-03 01:53:49,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 50 states have (on average 1.92) internal successors, (96), 88 states have internal predecessors, (96), 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) [2022-11-03 01:53:49,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 102 transitions. [2022-11-03 01:53:49,378 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 102 transitions. Word has length 27 [2022-11-03 01:53:49,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:49,378 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 102 transitions. [2022-11-03 01:53:49,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 14 states have internal predecessors, (35), 3 states have call successors, (4), 1 states have call predecessors, (4), 5 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-03 01:53:49,380 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 102 transitions. [2022-11-03 01:53:49,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 01:53:49,380 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:49,381 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:53:49,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 01:53:49,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:53:49,602 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:53:49,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:49,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1782829442, now seen corresponding path program 1 times [2022-11-03 01:53:49,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:49,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059987382] [2022-11-03 01:53:49,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:49,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:50,349 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 01:53:50,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:50,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059987382] [2022-11-03 01:53:50,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059987382] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:53:50,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669447538] [2022-11-03 01:53:50,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:50,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:53:50,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:53:50,352 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:53:50,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 01:53:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:50,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-03 01:53:50,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:53:50,548 INFO L390 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 [2022-11-03 01:53:50,566 INFO L390 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 [2022-11-03 01:53:51,180 WARN L833 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (or (<= 4 (select |c_#length| |c_ULTIMATE.start_main_~#s~0#1.base|)) (exists ((|v_#length_BEFORE_CALL_63| (Array Int Int))) (let ((.cse0 (@diff |v_#length_BEFORE_CALL_63| |c_#length|))) (and (<= 4 (select |v_#length_BEFORE_CALL_63| |c_ULTIMATE.start_main_~#s~0#1.base|)) (= |c_#length| (store |v_#length_BEFORE_CALL_63| .cse0 (select |c_#length| .cse0))) (<= (+ .cse0 1) |c_#StackHeapBarrier|))))) (<= (+ |c_#StackHeapBarrier| 1) |c_ULTIMATE.start_main_~#s~0#1.base|)) is different from false [2022-11-03 01:53:51,184 WARN L855 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (or (<= 4 (select |c_#length| |c_ULTIMATE.start_main_~#s~0#1.base|)) (exists ((|v_#length_BEFORE_CALL_63| (Array Int Int))) (let ((.cse0 (@diff |v_#length_BEFORE_CALL_63| |c_#length|))) (and (<= 4 (select |v_#length_BEFORE_CALL_63| |c_ULTIMATE.start_main_~#s~0#1.base|)) (= |c_#length| (store |v_#length_BEFORE_CALL_63| .cse0 (select |c_#length| .cse0))) (<= (+ .cse0 1) |c_#StackHeapBarrier|))))) (<= (+ |c_#StackHeapBarrier| 1) |c_ULTIMATE.start_main_~#s~0#1.base|)) is different from true [2022-11-03 01:53:51,239 INFO L390 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 [2022-11-03 01:53:52,237 INFO L390 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 [2022-11-03 01:53:52,368 WARN L833 $PredicateComparison]: unable to prove that (and (or (exists ((|v_#length_BEFORE_CALL_67| (Array Int Int))) (let ((.cse0 (@diff |v_#length_BEFORE_CALL_67| |c_#length|))) (and (<= 4 (select |v_#length_BEFORE_CALL_67| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|)) (= (store |v_#length_BEFORE_CALL_67| .cse0 (select |c_#length| .cse0)) |c_#length|) (<= (+ 2 .cse0) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|)))) (<= 4 (select |c_#length| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|))) (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0)) is different from false [2022-11-03 01:53:52,372 WARN L855 $PredicateComparison]: unable to prove that (and (or (exists ((|v_#length_BEFORE_CALL_67| (Array Int Int))) (let ((.cse0 (@diff |v_#length_BEFORE_CALL_67| |c_#length|))) (and (<= 4 (select |v_#length_BEFORE_CALL_67| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|)) (= (store |v_#length_BEFORE_CALL_67| .cse0 (select |c_#length| .cse0)) |c_#length|) (<= (+ 2 .cse0) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|)))) (<= 4 (select |c_#length| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|))) (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0)) is different from true [2022-11-03 01:53:52,391 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 01:53:52,391 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:53:52,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669447538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:53:52,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 01:53:52,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 12 [2022-11-03 01:53:52,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335622392] [2022-11-03 01:53:52,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:53:52,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 01:53:52,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:52,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 01:53:52,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=102, Unknown=4, NotChecked=42, Total=182 [2022-11-03 01:53:52,394 INFO L87 Difference]: Start difference. First operand 93 states and 102 transitions. Second operand has 9 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-03 01:53:52,442 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (<= 4 (select |c_#length| |c_ULTIMATE.start_main_~#s~0#1.base|)))) (and (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (or .cse0 (exists ((|v_#length_BEFORE_CALL_63| (Array Int Int))) (let ((.cse1 (@diff |v_#length_BEFORE_CALL_63| |c_#length|))) (and (<= 4 (select |v_#length_BEFORE_CALL_63| |c_ULTIMATE.start_main_~#s~0#1.base|)) (= |c_#length| (store |v_#length_BEFORE_CALL_63| .cse1 (select |c_#length| .cse1))) (<= (+ .cse1 1) |c_#StackHeapBarrier|))))) .cse0 (<= (+ |c_#StackHeapBarrier| 1) |c_ULTIMATE.start_main_~#s~0#1.base|))) is different from false [2022-11-03 01:53:52,445 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse0 (<= 4 (select |c_#length| |c_ULTIMATE.start_main_~#s~0#1.base|)))) (and (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (or .cse0 (exists ((|v_#length_BEFORE_CALL_63| (Array Int Int))) (let ((.cse1 (@diff |v_#length_BEFORE_CALL_63| |c_#length|))) (and (<= 4 (select |v_#length_BEFORE_CALL_63| |c_ULTIMATE.start_main_~#s~0#1.base|)) (= |c_#length| (store |v_#length_BEFORE_CALL_63| .cse1 (select |c_#length| .cse1))) (<= (+ .cse1 1) |c_#StackHeapBarrier|))))) .cse0 (<= (+ |c_#StackHeapBarrier| 1) |c_ULTIMATE.start_main_~#s~0#1.base|))) is different from true [2022-11-03 01:53:52,520 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (<= 4 (select |c_#length| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|))) (.cse2 (+ |c_#StackHeapBarrier| 1))) (and (or (exists ((|v_#length_BEFORE_CALL_67| (Array Int Int))) (let ((.cse0 (@diff |v_#length_BEFORE_CALL_67| |c_#length|))) (and (<= 4 (select |v_#length_BEFORE_CALL_67| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|)) (= (store |v_#length_BEFORE_CALL_67| .cse0 (select |c_#length| .cse0)) |c_#length|) (<= (+ 2 .cse0) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|)))) .cse1) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) .cse1 (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0) (<= 4 (select |c_#length| |c_ULTIMATE.start_main_~#s~0#1.base|)) (<= .cse2 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) (<= .cse2 |c_ULTIMATE.start_main_~#s~0#1.base|))) is different from false [2022-11-03 01:53:52,523 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse1 (<= 4 (select |c_#length| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|))) (.cse2 (+ |c_#StackHeapBarrier| 1))) (and (or (exists ((|v_#length_BEFORE_CALL_67| (Array Int Int))) (let ((.cse0 (@diff |v_#length_BEFORE_CALL_67| |c_#length|))) (and (<= 4 (select |v_#length_BEFORE_CALL_67| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|)) (= (store |v_#length_BEFORE_CALL_67| .cse0 (select |c_#length| .cse0)) |c_#length|) (<= (+ 2 .cse0) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|)))) .cse1) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) .cse1 (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0) (<= 4 (select |c_#length| |c_ULTIMATE.start_main_~#s~0#1.base|)) (<= .cse2 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) (<= .cse2 |c_ULTIMATE.start_main_~#s~0#1.base|))) is different from true [2022-11-03 01:53:52,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:52,729 INFO L93 Difference]: Finished difference Result 87 states and 96 transitions. [2022-11-03 01:53:52,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 01:53:52,730 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2022-11-03 01:53:52,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:52,730 INFO L225 Difference]: With dead ends: 87 [2022-11-03 01:53:52,731 INFO L226 Difference]: Without dead ends: 87 [2022-11-03 01:53:52,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=43, Invalid=121, Unknown=8, NotChecked=100, Total=272 [2022-11-03 01:53:52,732 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 78 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 186 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:52,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 171 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 201 Invalid, 0 Unknown, 186 Unchecked, 0.3s Time] [2022-11-03 01:53:52,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-03 01:53:52,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-11-03 01:53:52,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 50 states have (on average 1.8) internal successors, (90), 82 states have internal predecessors, (90), 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) [2022-11-03 01:53:52,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 96 transitions. [2022-11-03 01:53:52,737 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 96 transitions. Word has length 27 [2022-11-03 01:53:52,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:52,737 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 96 transitions. [2022-11-03 01:53:52,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-03 01:53:52,737 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 96 transitions. [2022-11-03 01:53:52,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-03 01:53:52,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:52,738 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:53:52,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 01:53:52,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-03 01:53:52,939 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:53:52,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:52,940 INFO L85 PathProgramCache]: Analyzing trace with hash 706300488, now seen corresponding path program 1 times [2022-11-03 01:53:52,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:52,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494080613] [2022-11-03 01:53:52,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:52,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:53,078 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 01:53:53,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:53,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494080613] [2022-11-03 01:53:53,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494080613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:53:53,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:53:53,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:53:53,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495793814] [2022-11-03 01:53:53,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:53:53,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:53:53,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:53,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:53:53,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:53:53,081 INFO L87 Difference]: Start difference. First operand 87 states and 96 transitions. Second operand has 6 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:53:53,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:53,300 INFO L93 Difference]: Finished difference Result 102 states and 112 transitions. [2022-11-03 01:53:53,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:53:53,301 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2022-11-03 01:53:53,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:53,302 INFO L225 Difference]: With dead ends: 102 [2022-11-03 01:53:53,302 INFO L226 Difference]: Without dead ends: 102 [2022-11-03 01:53:53,303 INFO L412 NwaCegarLoop]: 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 [2022-11-03 01:53:53,303 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 70 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:53,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 193 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:53:53,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-11-03 01:53:53,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 85. [2022-11-03 01:53:53,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 50 states have (on average 1.76) internal successors, (88), 80 states have internal predecessors, (88), 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) [2022-11-03 01:53:53,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2022-11-03 01:53:53,308 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 30 [2022-11-03 01:53:53,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:53,308 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2022-11-03 01:53:53,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:53:53,311 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2022-11-03 01:53:53,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-03 01:53:53,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:53,316 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:53:53,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 01:53:53,317 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:53:53,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:53,318 INFO L85 PathProgramCache]: Analyzing trace with hash 706300489, now seen corresponding path program 1 times [2022-11-03 01:53:53,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:53,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363415132] [2022-11-03 01:53:53,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:53,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:53,561 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 01:53:53,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:53,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363415132] [2022-11-03 01:53:53,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363415132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:53:53,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:53:53,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:53:53,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296369942] [2022-11-03 01:53:53,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:53:53,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:53:53,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:53,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:53:53,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:53:53,564 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand has 6 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:53:53,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:53,763 INFO L93 Difference]: Finished difference Result 83 states and 92 transitions. [2022-11-03 01:53:53,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:53:53,763 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2022-11-03 01:53:53,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:53,765 INFO L225 Difference]: With dead ends: 83 [2022-11-03 01:53:53,765 INFO L226 Difference]: Without dead ends: 83 [2022-11-03 01:53:53,765 INFO L412 NwaCegarLoop]: 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 [2022-11-03 01:53:53,766 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 71 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:53,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 194 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:53:53,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-03 01:53:53,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-11-03 01:53:53,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 50 states have (on average 1.72) internal successors, (86), 78 states have internal predecessors, (86), 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) [2022-11-03 01:53:53,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 92 transitions. [2022-11-03 01:53:53,771 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 92 transitions. Word has length 30 [2022-11-03 01:53:53,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:53,772 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 92 transitions. [2022-11-03 01:53:53,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 01:53:53,772 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 92 transitions. [2022-11-03 01:53:53,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-03 01:53:53,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:53,773 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:53:53,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 01:53:53,774 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:53:53,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:53,774 INFO L85 PathProgramCache]: Analyzing trace with hash 706313738, now seen corresponding path program 1 times [2022-11-03 01:53:53,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:53,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445165039] [2022-11-03 01:53:53,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:53,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:54,556 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:53:54,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:54,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445165039] [2022-11-03 01:53:54,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445165039] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:53:54,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228328160] [2022-11-03 01:53:54,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:54,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:53:54,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:53:54,562 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:53:54,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 01:53:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:54,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-03 01:53:54,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:53:54,910 INFO L390 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 [2022-11-03 01:53:55,131 INFO L356 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-11-03 01:53:55,133 INFO L390 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 21 treesize of output 29 [2022-11-03 01:53:55,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:55,141 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2022-11-03 01:53:55,194 INFO L390 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 [2022-11-03 01:53:55,197 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-03 01:53:55,197 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:53:55,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228328160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:53:55,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 01:53:55,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 21 [2022-11-03 01:53:55,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503675139] [2022-11-03 01:53:55,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:53:55,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 01:53:55,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:55,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 01:53:55,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=402, Unknown=2, NotChecked=0, Total=462 [2022-11-03 01:53:55,206 INFO L87 Difference]: Start difference. First operand 83 states and 92 transitions. Second operand has 11 states, 8 states have (on average 2.5) internal successors, (20), 10 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-03 01:53:55,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:55,598 INFO L93 Difference]: Finished difference Result 130 states and 145 transitions. [2022-11-03 01:53:55,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 01:53:55,599 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 2.5) internal successors, (20), 10 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2022-11-03 01:53:55,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:55,600 INFO L225 Difference]: With dead ends: 130 [2022-11-03 01:53:55,600 INFO L226 Difference]: Without dead ends: 130 [2022-11-03 01:53:55,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=477, Unknown=2, NotChecked=0, Total=552 [2022-11-03 01:53:55,601 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 75 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 158 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:55,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 515 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 342 Invalid, 0 Unknown, 158 Unchecked, 0.3s Time] [2022-11-03 01:53:55,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-11-03 01:53:55,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 82. [2022-11-03 01:53:55,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 51 states have (on average 1.6862745098039216) internal successors, (86), 77 states have internal predecessors, (86), 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) [2022-11-03 01:53:55,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 92 transitions. [2022-11-03 01:53:55,606 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 92 transitions. Word has length 30 [2022-11-03 01:53:55,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:55,606 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 92 transitions. [2022-11-03 01:53:55,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 2.5) internal successors, (20), 10 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-03 01:53:55,607 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions. [2022-11-03 01:53:55,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-03 01:53:55,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:55,608 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:53:55,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 01:53:55,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-03 01:53:55,809 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:53:55,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:55,809 INFO L85 PathProgramCache]: Analyzing trace with hash 706313739, now seen corresponding path program 1 times [2022-11-03 01:53:55,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:55,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114560016] [2022-11-03 01:53:55,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:55,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:56,992 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 01:53:56,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:56,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114560016] [2022-11-03 01:53:56,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114560016] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:53:56,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972787273] [2022-11-03 01:53:56,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:56,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:53:56,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:53:56,994 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:53:56,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 01:53:57,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:57,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-03 01:53:57,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:53:57,245 INFO L390 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 [2022-11-03 01:53:57,533 INFO L390 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 19 treesize of output 11 [2022-11-03 01:53:57,540 INFO L390 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 [2022-11-03 01:53:57,679 WARN L855 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int) (v_ArrVal_836 (Array Int Int)) (v_ArrVal_835 (Array Int Int))) (and (<= (+ |node_create_~temp~0#1.base| 1) |c_#StackHeapBarrier|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |node_create_~temp~0#1.base| v_ArrVal_836)) (= (store |c_old(#length)| |node_create_~temp~0#1.base| (select |c_#length| |node_create_~temp~0#1.base|)) |c_#length|) (= (store |c_old(#memory_$Pointer$.offset)| |node_create_~temp~0#1.base| v_ArrVal_835) |c_#memory_$Pointer$.offset|) (= 0 (select |c_old(#valid)| |node_create_~temp~0#1.base|)))) is different from true [2022-11-03 01:53:57,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:57,708 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2022-11-03 01:53:57,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:57,716 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-03 01:53:57,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:57,723 INFO L390 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 18 treesize of output 13 [2022-11-03 01:53:57,737 INFO L356 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-11-03 01:53:57,738 INFO L390 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 [2022-11-03 01:53:57,812 INFO L390 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 [2022-11-03 01:53:57,814 INFO L390 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 [2022-11-03 01:53:57,819 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2022-11-03 01:53:57,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:53:59,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972787273] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:53:59,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [765869835] [2022-11-03 01:53:59,701 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-03 01:53:59,701 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:53:59,702 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:53:59,702 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:53:59,702 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:53:59,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:59,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:59,731 INFO L390 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 [2022-11-03 01:53:59,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:59,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:59,776 INFO L390 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 [2022-11-03 01:53:59,799 INFO L390 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 [2022-11-03 01:53:59,804 INFO L390 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 [2022-11-03 01:53:59,813 INFO L390 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 15 treesize of output 1 [2022-11-03 01:53:59,819 INFO L390 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 [2022-11-03 01:53:59,825 INFO L390 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 [2022-11-03 01:53:59,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:59,847 INFO L390 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 [2022-11-03 01:53:59,854 INFO L390 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 [2022-11-03 01:53:59,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:59,863 INFO L390 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 [2022-11-03 01:53:59,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:59,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:59,892 INFO L390 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 [2022-11-03 01:53:59,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:59,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:59,932 INFO L390 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 [2022-11-03 01:53:59,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:59,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:53:59,966 INFO L390 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 [2022-11-03 01:54:00,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:00,064 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:00,064 INFO L390 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 [2022-11-03 01:54:00,101 INFO L390 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 [2022-11-03 01:54:00,114 INFO L390 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 [2022-11-03 01:54:00,127 INFO L390 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 [2022-11-03 01:54:00,151 INFO L390 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 [2022-11-03 01:54:00,165 INFO L390 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 [2022-11-03 01:54:00,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:00,203 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:00,203 INFO L390 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 [2022-11-03 01:54:00,239 INFO L390 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 [2022-11-03 01:54:00,250 INFO L390 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 [2022-11-03 01:54:00,267 INFO L390 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 [2022-11-03 01:54:00,281 INFO L390 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 [2022-11-03 01:54:00,293 INFO L390 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 [2022-11-03 01:54:00,427 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:00,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:00,431 INFO L390 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 250 treesize of output 234 [2022-11-03 01:54:00,449 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:00,450 INFO L390 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 248 treesize of output 236 [2022-11-03 01:54:00,468 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:00,470 INFO L390 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 264 treesize of output 252 [2022-11-03 01:54:00,736 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2022-11-03 01:54:00,748 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2022-11-03 01:54:00,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:00,761 INFO L390 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 11 [2022-11-03 01:54:00,984 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:54:00,998 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:54:01,013 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:54:01,119 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:01,126 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:54:01,126 INFO L390 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 15 treesize of output 7 [2022-11-03 01:54:01,142 INFO L390 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 [2022-11-03 01:54:01,157 INFO L390 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 [2022-11-03 01:54:01,175 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:01,181 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:54:01,182 INFO L390 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 15 treesize of output 7 [2022-11-03 01:54:01,326 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:01,333 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:54:01,334 INFO L390 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 15 treesize of output 7 [2022-11-03 01:54:01,356 INFO L390 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 [2022-11-03 01:54:01,372 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:01,378 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:54:01,379 INFO L390 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 15 treesize of output 7 [2022-11-03 01:54:01,395 INFO L390 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 [2022-11-03 01:54:01,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:01,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:01,715 INFO L390 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 [2022-11-03 01:54:01,729 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 13 for LOIs [2022-11-03 01:54:01,737 INFO L390 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 [2022-11-03 01:54:01,743 INFO L390 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 [2022-11-03 01:54:01,756 INFO L390 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 [2022-11-03 01:54:01,763 INFO L390 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 15 treesize of output 1 [2022-11-03 01:54:01,770 INFO L390 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 [2022-11-03 01:54:01,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:01,789 INFO L390 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 [2022-11-03 01:54:01,797 INFO L390 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 [2022-11-03 01:54:01,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:01,806 INFO L390 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 [2022-11-03 01:54:01,808 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:54:08,322 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3369#(and (or (not (<= (+ |ULTIMATE.start_sll_circular_prepend_~last~1#1.offset| 4) (select |#length| |ULTIMATE.start_sll_circular_prepend_~last~1#1.base|))) (not (<= 0 |ULTIMATE.start_sll_circular_prepend_~last~1#1.offset|))) (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (= |ULTIMATE.start_sll_circular_prepend_~data#1| (select (select |#memory_int| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) 4)) (< |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| |#StackHeapBarrier|) (= |ULTIMATE.start_sll_circular_prepend_#in~head#1.base| |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (= |ULTIMATE.start_sll_circular_prepend_#in~head#1.base| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) 0) 0) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (= 8 (select |#length| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|)) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) |ULTIMATE.start_sll_circular_prepend_~last~1#1.base|) (<= (+ |ULTIMATE.start_sll_circular_prepend_~head#1.offset| 4) (select |#length| |ULTIMATE.start_sll_circular_prepend_~head#1.base|)) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_sll_circular_prepend_~data#1| 5) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (= (select |#valid| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) 1) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (<= 5 |ULTIMATE.start_sll_circular_prepend_~data#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (= |ULTIMATE.start_sll_circular_create_~head~0#1.base| |ULTIMATE.start_sll_circular_create_#res#1.base|) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) 0) 0) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|) (<= |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) 0))) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0) (<= 5 |ULTIMATE.start_sll_circular_prepend_#in~data#1|) (not (= |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| 0)) (= 1 (select |#valid| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|)) (= |ULTIMATE.start_sll_circular_prepend_#in~data#1| |ULTIMATE.start_main_~uneq~0#1|) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= |ULTIMATE.start_sll_circular_prepend_#in~data#1| 5) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.base|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_sll_circular_prepend_~last~1#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) |ULTIMATE.start_sll_circular_prepend_~head#1.offset|)) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-03 01:54:08,323 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:54:08,323 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:54:08,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 23 [2022-11-03 01:54:08,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517900647] [2022-11-03 01:54:08,324 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 01:54:08,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-03 01:54:08,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:54:08,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-03 01:54:08,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=1730, Unknown=1, NotChecked=84, Total=1980 [2022-11-03 01:54:08,326 INFO L87 Difference]: Start difference. First operand 82 states and 92 transitions. Second operand has 24 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 21 states have internal predecessors, (40), 4 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-03 01:54:10,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:10,395 INFO L93 Difference]: Finished difference Result 138 states and 153 transitions. [2022-11-03 01:54:10,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 01:54:10,396 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 21 states have internal predecessors, (40), 4 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 30 [2022-11-03 01:54:10,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:10,397 INFO L225 Difference]: With dead ends: 138 [2022-11-03 01:54:10,398 INFO L226 Difference]: Without dead ends: 138 [2022-11-03 01:54:10,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 34 SyntacticMatches, 3 SemanticMatches, 51 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 760 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=238, Invalid=2417, Unknown=1, NotChecked=100, Total=2756 [2022-11-03 01:54:10,399 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 241 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 1618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 149 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:10,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 864 Invalid, 1618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1437 Invalid, 0 Unknown, 149 Unchecked, 1.6s Time] [2022-11-03 01:54:10,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-11-03 01:54:10,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 89. [2022-11-03 01:54:10,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 58 states have (on average 1.603448275862069) 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) [2022-11-03 01:54:10,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 99 transitions. [2022-11-03 01:54:10,405 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 99 transitions. Word has length 30 [2022-11-03 01:54:10,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:10,406 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 99 transitions. [2022-11-03 01:54:10,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 21 states have internal predecessors, (40), 4 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-03 01:54:10,406 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 99 transitions. [2022-11-03 01:54:10,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 01:54:10,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:10,407 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:54:10,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:10,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-03 01:54:10,608 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:54:10,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:10,609 INFO L85 PathProgramCache]: Analyzing trace with hash 149937962, now seen corresponding path program 1 times [2022-11-03 01:54:10,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:54:10,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225245586] [2022-11-03 01:54:10,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:10,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:54:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:10,927 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 01:54:10,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:54:10,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225245586] [2022-11-03 01:54:10,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225245586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:10,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:54:10,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:54:10,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938356624] [2022-11-03 01:54:10,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:10,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 01:54:10,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:54:10,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 01:54:10,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-03 01:54:10,931 INFO L87 Difference]: Start difference. First operand 89 states and 99 transitions. Second operand has 7 states, 5 states have (on average 3.6) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-03 01:54:11,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:11,058 INFO L93 Difference]: Finished difference Result 86 states and 96 transitions. [2022-11-03 01:54:11,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:54:11,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.6) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2022-11-03 01:54:11,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:11,060 INFO L225 Difference]: With dead ends: 86 [2022-11-03 01:54:11,060 INFO L226 Difference]: Without dead ends: 86 [2022-11-03 01:54:11,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:54:11,062 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 200 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:11,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 71 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:54:11,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-03 01:54:11,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-11-03 01:54:11,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 58 states have (on average 1.5517241379310345) internal successors, (90), 81 states have internal predecessors, (90), 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) [2022-11-03 01:54:11,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 96 transitions. [2022-11-03 01:54:11,067 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 96 transitions. Word has length 32 [2022-11-03 01:54:11,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:11,069 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 96 transitions. [2022-11-03 01:54:11,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.6) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-03 01:54:11,069 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 96 transitions. [2022-11-03 01:54:11,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-03 01:54:11,071 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:11,071 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:54:11,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-03 01:54:11,071 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:54:11,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:11,072 INFO L85 PathProgramCache]: Analyzing trace with hash 353113554, now seen corresponding path program 1 times [2022-11-03 01:54:11,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:54:11,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237000519] [2022-11-03 01:54:11,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:11,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:54:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:12,074 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 01:54:12,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:54:12,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237000519] [2022-11-03 01:54:12,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237000519] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:54:12,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492127248] [2022-11-03 01:54:12,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:12,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:54:12,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:54:12,082 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:54:12,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-03 01:54:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:12,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-03 01:54:12,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:12,562 INFO L390 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 [2022-11-03 01:54:12,612 WARN L855 $PredicateComparison]: unable to prove that (and (< |c_node_create_~temp~0#1.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_1052 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_node_create_~temp~0#1.base| v_ArrVal_1052) |c_#memory_$Pointer$.base|))) is different from true [2022-11-03 01:54:12,623 WARN L855 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int)) (and (< |node_create_~temp~0#1.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_1053 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |node_create_~temp~0#1.base| v_ArrVal_1053))))) is different from true [2022-11-03 01:54:12,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:12,634 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2022-11-03 01:54:12,681 INFO L390 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 [2022-11-03 01:54:12,709 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2022-11-03 01:54:12,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:54:12,792 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1057 (Array Int Int)) (|v_node_create_~temp~0#1.base_42| Int)) (or (not (= (select (select (store |c_#memory_$Pointer$.base| |v_node_create_~temp~0#1.base_42| v_ArrVal_1057) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|) 0)) (not (< |v_node_create_~temp~0#1.base_42| |c_#StackHeapBarrier|)))) is different from false [2022-11-03 01:54:12,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492127248] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:54:12,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1873960585] [2022-11-03 01:54:12,796 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-03 01:54:12,797 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:54:12,797 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:54:12,797 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:54:12,797 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:54:12,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:12,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:12,826 INFO L390 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 [2022-11-03 01:54:12,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:12,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:12,865 INFO L390 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 [2022-11-03 01:54:12,883 INFO L390 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 [2022-11-03 01:54:12,888 INFO L390 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 [2022-11-03 01:54:12,896 INFO L390 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 15 treesize of output 1 [2022-11-03 01:54:12,902 INFO L390 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 [2022-11-03 01:54:12,911 INFO L390 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 [2022-11-03 01:54:12,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:12,923 INFO L390 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 [2022-11-03 01:54:12,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:12,931 INFO L390 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 [2022-11-03 01:54:12,938 INFO L390 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 [2022-11-03 01:54:12,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:12,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:12,968 INFO L390 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 [2022-11-03 01:54:12,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:12,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:13,005 INFO L390 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 [2022-11-03 01:54:13,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:13,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:13,051 INFO L390 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 [2022-11-03 01:54:13,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:13,126 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:13,126 INFO L390 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 [2022-11-03 01:54:13,164 INFO L390 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 [2022-11-03 01:54:13,179 INFO L390 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 [2022-11-03 01:54:13,190 INFO L390 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 [2022-11-03 01:54:13,203 INFO L390 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 [2022-11-03 01:54:13,219 INFO L390 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 [2022-11-03 01:54:13,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:13,252 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:13,253 INFO L390 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 [2022-11-03 01:54:13,288 INFO L390 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 [2022-11-03 01:54:13,306 INFO L390 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 [2022-11-03 01:54:13,317 INFO L390 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 [2022-11-03 01:54:13,329 INFO L390 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 [2022-11-03 01:54:13,339 INFO L390 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 [2022-11-03 01:54:13,484 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:13,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:13,487 INFO L390 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 250 treesize of output 234 [2022-11-03 01:54:13,504 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:13,506 INFO L390 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 248 treesize of output 236 [2022-11-03 01:54:13,522 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:13,524 INFO L390 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 264 treesize of output 252 [2022-11-03 01:54:13,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:13,760 INFO L390 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 11 [2022-11-03 01:54:13,775 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2022-11-03 01:54:13,789 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2022-11-03 01:54:14,017 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:54:14,034 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:54:14,046 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:54:14,146 INFO L390 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 [2022-11-03 01:54:14,162 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:14,169 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:54:14,169 INFO L390 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 15 treesize of output 7 [2022-11-03 01:54:14,183 INFO L390 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 [2022-11-03 01:54:14,199 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:14,205 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:54:14,206 INFO L390 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 15 treesize of output 7 [2022-11-03 01:54:14,302 INFO L390 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 [2022-11-03 01:54:14,317 INFO L390 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 [2022-11-03 01:54:14,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:14,341 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:54:14,341 INFO L390 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 15 treesize of output 7 [2022-11-03 01:54:14,357 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:14,363 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:54:14,364 INFO L390 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 15 treesize of output 7 [2022-11-03 01:54:14,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:14,613 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 172 [2022-11-03 01:54:14,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:14,652 INFO L356 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-11-03 01:54:14,653 INFO L390 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 191 treesize of output 186 [2022-11-03 01:54:14,673 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:14,691 INFO L356 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-03 01:54:14,692 INFO L390 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 183 treesize of output 174 [2022-11-03 01:54:14,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:14,837 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 170 [2022-11-03 01:54:14,857 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:14,858 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:14,881 INFO L356 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-03 01:54:14,881 INFO L390 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 189 treesize of output 180 [2022-11-03 01:54:14,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:14,902 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:14,936 INFO L356 Elim1Store]: treesize reduction 16, result has 50.0 percent of original size [2022-11-03 01:54:14,937 INFO L390 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 181 treesize of output 180 [2022-11-03 01:54:15,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:15,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:15,368 INFO L390 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 [2022-11-03 01:54:15,382 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 21 for LOIs [2022-11-03 01:54:15,393 INFO L390 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 [2022-11-03 01:54:15,400 INFO L390 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 [2022-11-03 01:54:15,422 INFO L390 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 [2022-11-03 01:54:15,431 INFO L390 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 [2022-11-03 01:54:15,439 INFO L390 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 15 treesize of output 1 [2022-11-03 01:54:15,459 INFO L390 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 [2022-11-03 01:54:15,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:15,468 INFO L390 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 [2022-11-03 01:54:15,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:15,483 INFO L390 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 [2022-11-03 01:54:15,489 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:54:22,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1873960585] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:54:22,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:54:22,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [19, 15] total 49 [2022-11-03 01:54:22,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56930881] [2022-11-03 01:54:22,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:54:22,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-03 01:54:22,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:54:22,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-03 01:54:22,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=2064, Unknown=3, NotChecked=282, Total=2550 [2022-11-03 01:54:22,918 INFO L87 Difference]: Start difference. First operand 86 states and 96 transitions. Second operand has 21 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 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) [2022-11-03 01:54:24,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:24,867 INFO L93 Difference]: Finished difference Result 121 states and 135 transitions. [2022-11-03 01:54:24,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-03 01:54:24,868 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 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) Word has length 33 [2022-11-03 01:54:24,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:24,869 INFO L225 Difference]: With dead ends: 121 [2022-11-03 01:54:24,869 INFO L226 Difference]: Without dead ends: 121 [2022-11-03 01:54:24,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=201, Invalid=2064, Unknown=3, NotChecked=282, Total=2550 [2022-11-03 01:54:24,871 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 169 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:24,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 207 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-03 01:54:24,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-03 01:54:24,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 96. [2022-11-03 01:54:24,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 68 states have (on average 1.5) internal successors, (102), 91 states have internal predecessors, (102), 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) [2022-11-03 01:54:24,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 108 transitions. [2022-11-03 01:54:24,876 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 108 transitions. Word has length 33 [2022-11-03 01:54:24,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:24,877 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 108 transitions. [2022-11-03 01:54:24,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 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) [2022-11-03 01:54:24,877 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 108 transitions. [2022-11-03 01:54:24,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-03 01:54:24,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:24,878 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:54:24,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:25,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-03 01:54:25,101 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:54:25,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:25,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1707330583, now seen corresponding path program 1 times [2022-11-03 01:54:25,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:54:25,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920421879] [2022-11-03 01:54:25,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:25,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:54:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:26,811 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:54:26,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:54:26,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920421879] [2022-11-03 01:54:26,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920421879] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:54:26,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937287099] [2022-11-03 01:54:26,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:26,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:54:26,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:54:26,814 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:54:26,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-03 01:54:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:27,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 90 conjunts are in the unsatisfiable core [2022-11-03 01:54:27,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:27,110 INFO L390 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 [2022-11-03 01:54:27,351 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:27,352 INFO L390 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 [2022-11-03 01:54:27,483 INFO L390 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 [2022-11-03 01:54:27,612 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-03 01:54:27,613 INFO L390 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 49 [2022-11-03 01:54:27,701 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:27,702 INFO L390 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 47 treesize of output 22 [2022-11-03 01:54:27,712 INFO L390 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 [2022-11-03 01:54:27,718 INFO L390 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 [2022-11-03 01:54:27,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:28,007 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 01:54:28,007 INFO L390 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 53 treesize of output 51 [2022-11-03 01:54:28,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:28,017 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 49 [2022-11-03 01:54:28,071 INFO L356 Elim1Store]: treesize reduction 88, result has 36.7 percent of original size [2022-11-03 01:54:28,072 INFO L390 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 40 treesize of output 60 [2022-11-03 01:54:28,303 INFO L390 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 68 treesize of output 48 [2022-11-03 01:54:28,549 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:28,550 INFO L390 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 70 treesize of output 33 [2022-11-03 01:54:28,629 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:54:28,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:54:28,749 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1187 (Array Int Int)) (|v_node_create_~temp~0#1.base_45| Int) (v_ArrVal_1186 (Array Int Int))) (or (= (select (store |c_#valid| |v_node_create_~temp~0#1.base_45| 1) (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |v_node_create_~temp~0#1.base_45| v_ArrVal_1187))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|))) (select (select (store |c_#memory_$Pointer$.offset| |v_node_create_~temp~0#1.base_45| v_ArrVal_1186) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|))) 1) (not (= (select |c_#valid| |v_node_create_~temp~0#1.base_45|) 0)) (not (< |v_node_create_~temp~0#1.base_45| |c_#StackHeapBarrier|)))) is different from false [2022-11-03 01:54:28,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937287099] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:54:28,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1266597394] [2022-11-03 01:54:28,754 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-03 01:54:28,754 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:54:28,754 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:54:28,754 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:54:28,755 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:54:28,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:28,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:28,777 INFO L390 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 [2022-11-03 01:54:28,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:28,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:28,810 INFO L390 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 [2022-11-03 01:54:28,824 INFO L390 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 [2022-11-03 01:54:28,829 INFO L390 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 [2022-11-03 01:54:28,838 INFO L390 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 15 treesize of output 1 [2022-11-03 01:54:28,843 INFO L390 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 [2022-11-03 01:54:28,848 INFO L390 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 [2022-11-03 01:54:28,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:28,859 INFO L390 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 [2022-11-03 01:54:28,866 INFO L390 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 [2022-11-03 01:54:28,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:28,876 INFO L390 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 [2022-11-03 01:54:28,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:28,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:28,905 INFO L390 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 [2022-11-03 01:54:28,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:28,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:28,936 INFO L390 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 [2022-11-03 01:54:28,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:28,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:28,971 INFO L390 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 [2022-11-03 01:54:29,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:29,035 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:29,035 INFO L390 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 [2022-11-03 01:54:29,072 INFO L390 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 [2022-11-03 01:54:29,084 INFO L390 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 [2022-11-03 01:54:29,095 INFO L390 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 [2022-11-03 01:54:29,111 INFO L390 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 [2022-11-03 01:54:29,122 INFO L390 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 [2022-11-03 01:54:29,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:29,150 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:29,151 INFO L390 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 [2022-11-03 01:54:29,191 INFO L390 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 [2022-11-03 01:54:29,203 INFO L390 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 [2022-11-03 01:54:29,216 INFO L390 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 [2022-11-03 01:54:29,227 INFO L390 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 [2022-11-03 01:54:29,239 INFO L390 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 [2022-11-03 01:54:29,300 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2022-11-03 01:54:29,312 INFO L390 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 19 treesize of output 11 [2022-11-03 01:54:29,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:29,333 INFO L390 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 11 [2022-11-03 01:54:29,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:29,413 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:29,413 INFO L390 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 [2022-11-03 01:54:29,467 INFO L390 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 [2022-11-03 01:54:29,478 INFO L390 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 [2022-11-03 01:54:29,490 INFO L390 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 [2022-11-03 01:54:29,500 INFO L390 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 [2022-11-03 01:54:29,512 INFO L390 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 [2022-11-03 01:54:29,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:29,551 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:29,552 INFO L390 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 [2022-11-03 01:54:29,587 INFO L390 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 [2022-11-03 01:54:29,598 INFO L390 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 [2022-11-03 01:54:29,613 INFO L390 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 [2022-11-03 01:54:29,624 INFO L390 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 [2022-11-03 01:54:29,645 INFO L390 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 [2022-11-03 01:54:29,787 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:29,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:29,790 INFO L390 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 250 treesize of output 234 [2022-11-03 01:54:29,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:29,808 INFO L390 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 248 treesize of output 236 [2022-11-03 01:54:29,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:29,825 INFO L390 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 264 treesize of output 252 [2022-11-03 01:54:29,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:29,936 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:29,936 INFO L390 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 [2022-11-03 01:54:29,974 INFO L390 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 [2022-11-03 01:54:29,985 INFO L390 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 [2022-11-03 01:54:30,001 INFO L390 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 [2022-11-03 01:54:30,015 INFO L390 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 [2022-11-03 01:54:30,026 INFO L390 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 [2022-11-03 01:54:30,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:30,061 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:30,061 INFO L390 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 [2022-11-03 01:54:30,097 INFO L390 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 [2022-11-03 01:54:30,112 INFO L390 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 [2022-11-03 01:54:30,128 INFO L390 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 [2022-11-03 01:54:30,140 INFO L390 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 [2022-11-03 01:54:30,154 INFO L390 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 [2022-11-03 01:54:30,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:30,285 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:30,286 INFO L390 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 [2022-11-03 01:54:30,386 INFO L356 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-03 01:54:30,387 INFO L390 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 19 treesize of output 18 [2022-11-03 01:54:30,406 INFO L390 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 23 treesize of output 11 [2022-11-03 01:54:30,442 INFO L356 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-03 01:54:30,443 INFO L390 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 19 treesize of output 18 [2022-11-03 01:54:30,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:30,505 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:30,505 INFO L390 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 [2022-11-03 01:54:30,592 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:54:30,592 INFO L390 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 7 [2022-11-03 01:54:30,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:30,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:30,620 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:54:30,621 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-03 01:54:30,638 INFO L390 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 [2022-11-03 01:54:30,663 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:54:30,664 INFO L390 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 20 treesize of output 22 [2022-11-03 01:54:30,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:30,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:30,694 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:54:30,695 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-03 01:54:30,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:30,754 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:30,755 INFO L390 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 [2022-11-03 01:54:30,830 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:54:30,831 INFO L390 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 7 [2022-11-03 01:54:30,871 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:54:30,872 INFO L390 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 20 treesize of output 22 [2022-11-03 01:54:30,896 INFO L390 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 [2022-11-03 01:54:30,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:30,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:30,929 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:54:30,929 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-03 01:54:30,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:30,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:30,965 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:54:30,965 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-03 01:54:32,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:32,034 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:32,035 INFO L390 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 [2022-11-03 01:54:32,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:32,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:32,079 INFO L390 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 [2022-11-03 01:54:32,094 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 13 for LOIs [2022-11-03 01:54:32,125 INFO L390 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 [2022-11-03 01:54:32,130 INFO L390 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 [2022-11-03 01:54:32,147 INFO L390 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 [2022-11-03 01:54:32,153 INFO L390 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 [2022-11-03 01:54:32,159 INFO L390 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 15 treesize of output 1 [2022-11-03 01:54:32,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:32,175 INFO L390 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 [2022-11-03 01:54:32,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:32,184 INFO L390 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 [2022-11-03 01:54:32,192 INFO L390 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 [2022-11-03 01:54:32,195 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:54:41,522 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4368#(and (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_sll_circular_create_~len#1|) (= |ULTIMATE.start_main_~uneq~0#1| 5) (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (not (= (select |#valid| |ULTIMATE.start_sll_circular_prepend_~last~1#1.base|) 1)) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= |ULTIMATE.start_sll_circular_prepend_~data#1| 5) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (<= 5 |ULTIMATE.start_sll_circular_prepend_~data#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (= 0 |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0) (<= 5 |ULTIMATE.start_sll_circular_prepend_#in~data#1|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.base|) (<= |ULTIMATE.start_sll_circular_prepend_#in~data#1| 5) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 01:54:41,522 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:54:41,522 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:54:41,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20] total 35 [2022-11-03 01:54:41,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990260613] [2022-11-03 01:54:41,523 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 01:54:41,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-03 01:54:41,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:54:41,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-03 01:54:41,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=2871, Unknown=1, NotChecked=108, Total=3192 [2022-11-03 01:54:41,525 INFO L87 Difference]: Start difference. First operand 96 states and 108 transitions. Second operand has 36 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 30 states have internal predecessors, (55), 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) [2022-11-03 01:54:42,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:54:42,681 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2022-11-03 01:54:42,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 01:54:42,682 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 30 states have internal predecessors, (55), 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 34 [2022-11-03 01:54:42,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:54:42,684 INFO L225 Difference]: With dead ends: 97 [2022-11-03 01:54:42,685 INFO L226 Difference]: Without dead ends: 97 [2022-11-03 01:54:42,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1091 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=282, Invalid=3627, Unknown=1, NotChecked=122, Total=4032 [2022-11-03 01:54:42,687 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 14 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 138 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:54:42,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 874 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 676 Invalid, 0 Unknown, 138 Unchecked, 0.7s Time] [2022-11-03 01:54:42,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-03 01:54:42,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-11-03 01:54:42,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 69 states have (on average 1.5072463768115942) internal successors, (104), 92 states have internal predecessors, (104), 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) [2022-11-03 01:54:42,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 110 transitions. [2022-11-03 01:54:42,693 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 110 transitions. Word has length 34 [2022-11-03 01:54:42,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:54:42,694 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 110 transitions. [2022-11-03 01:54:42,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 30 states have internal predecessors, (55), 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) [2022-11-03 01:54:42,694 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 110 transitions. [2022-11-03 01:54:42,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-03 01:54:42,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:54:42,695 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:54:42,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-03 01:54:42,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-03 01:54:42,897 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:54:42,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:54:42,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1707330584, now seen corresponding path program 1 times [2022-11-03 01:54:42,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:54:42,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535630351] [2022-11-03 01:54:42,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:42,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:54:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:45,072 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:54:45,072 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:54:45,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535630351] [2022-11-03 01:54:45,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535630351] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:54:45,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356515930] [2022-11-03 01:54:45,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:54:45,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:54:45,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:54:45,074 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:54:45,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-03 01:54:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:54:45,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 111 conjunts are in the unsatisfiable core [2022-11-03 01:54:45,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:54:45,354 INFO L390 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 [2022-11-03 01:54:45,764 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 01:54:45,764 INFO L390 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 [2022-11-03 01:54:45,965 INFO L390 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 [2022-11-03 01:54:45,973 INFO L390 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 [2022-11-03 01:54:46,124 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-03 01:54:46,124 INFO L390 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 91 treesize of output 72 [2022-11-03 01:54:46,140 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2022-11-03 01:54:46,285 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:46,285 INFO L390 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 79 treesize of output 38 [2022-11-03 01:54:46,294 INFO L390 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 0 case distinctions, treesize of input 19 treesize of output 10 [2022-11-03 01:54:46,469 WARN L855 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int) (v_ArrVal_1312 (Array Int Int)) (v_ArrVal_1311 (Array Int Int))) (and (<= (+ |node_create_~temp~0#1.base| 1) |c_#StackHeapBarrier|) (= (store |c_old(#length)| |node_create_~temp~0#1.base| (select |c_#length| |node_create_~temp~0#1.base|)) |c_#length|) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |node_create_~temp~0#1.base| v_ArrVal_1312)) (= (store |c_old(#memory_$Pointer$.base)| |node_create_~temp~0#1.base| v_ArrVal_1311) |c_#memory_$Pointer$.base|) (= 0 (select |c_old(#valid)| |node_create_~temp~0#1.base|)))) is different from true [2022-11-03 01:54:46,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:46,512 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 01:54:46,513 INFO L390 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 85 treesize of output 75 [2022-11-03 01:54:46,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:46,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:46,528 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-03 01:54:46,529 INFO L390 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 83 treesize of output 80 [2022-11-03 01:54:46,557 INFO L356 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2022-11-03 01:54:46,558 INFO L390 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 32 treesize of output 34 [2022-11-03 01:54:46,565 INFO L390 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 26 treesize of output 21 [2022-11-03 01:54:46,954 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:46,954 INFO L390 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 83 treesize of output 42 [2022-11-03 01:54:46,963 INFO L390 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 0 case distinctions, treesize of input 30 treesize of output 13 [2022-11-03 01:54:47,016 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-11-03 01:54:47,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:54:49,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356515930] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:54:49,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [202814167] [2022-11-03 01:54:49,213 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-03 01:54:49,213 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:54:49,214 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:54:49,214 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:54:49,214 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:54:49,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:49,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:49,237 INFO L390 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 [2022-11-03 01:54:49,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:49,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:49,271 INFO L390 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 [2022-11-03 01:54:49,283 INFO L390 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 [2022-11-03 01:54:49,288 INFO L390 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 [2022-11-03 01:54:49,296 INFO L390 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 15 treesize of output 1 [2022-11-03 01:54:49,301 INFO L390 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 [2022-11-03 01:54:49,307 INFO L390 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 [2022-11-03 01:54:49,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:49,317 INFO L390 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 [2022-11-03 01:54:49,325 INFO L390 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 [2022-11-03 01:54:49,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:49,333 INFO L390 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 [2022-11-03 01:54:49,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:49,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:49,364 INFO L390 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 [2022-11-03 01:54:49,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:49,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:49,393 INFO L390 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 [2022-11-03 01:54:49,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:49,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:49,431 INFO L390 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 [2022-11-03 01:54:49,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:49,525 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:49,525 INFO L390 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 [2022-11-03 01:54:49,560 INFO L390 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 [2022-11-03 01:54:49,571 INFO L390 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 [2022-11-03 01:54:49,582 INFO L390 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 [2022-11-03 01:54:49,597 INFO L390 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 [2022-11-03 01:54:49,620 INFO L390 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 9 treesize of output 3 [2022-11-03 01:54:49,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:49,657 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:49,658 INFO L390 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 [2022-11-03 01:54:49,692 INFO L390 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 [2022-11-03 01:54:49,703 INFO L390 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 [2022-11-03 01:54:49,716 INFO L390 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 [2022-11-03 01:54:49,727 INFO L390 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 [2022-11-03 01:54:49,742 INFO L390 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 9 treesize of output 3 [2022-11-03 01:54:49,804 INFO L390 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 19 treesize of output 11 [2022-11-03 01:54:49,818 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2022-11-03 01:54:49,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:49,838 INFO L390 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 11 [2022-11-03 01:54:49,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:49,916 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:49,917 INFO L390 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 [2022-11-03 01:54:49,960 INFO L390 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 [2022-11-03 01:54:49,971 INFO L390 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 [2022-11-03 01:54:49,983 INFO L390 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 9 treesize of output 3 [2022-11-03 01:54:49,997 INFO L390 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 [2022-11-03 01:54:50,009 INFO L390 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 [2022-11-03 01:54:50,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:50,045 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:50,045 INFO L390 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 [2022-11-03 01:54:50,082 INFO L390 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 [2022-11-03 01:54:50,095 INFO L390 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 9 treesize of output 3 [2022-11-03 01:54:50,108 INFO L390 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 [2022-11-03 01:54:50,124 INFO L390 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 [2022-11-03 01:54:50,136 INFO L390 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 [2022-11-03 01:54:50,285 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:50,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:50,288 INFO L390 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 250 treesize of output 234 [2022-11-03 01:54:50,304 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:50,306 INFO L390 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 248 treesize of output 236 [2022-11-03 01:54:50,324 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:54:50,325 INFO L390 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 [2022-11-03 01:54:50,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:50,434 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:50,434 INFO L390 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 [2022-11-03 01:54:50,473 INFO L390 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 [2022-11-03 01:54:50,485 INFO L390 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 [2022-11-03 01:54:50,495 INFO L390 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 [2022-11-03 01:54:50,507 INFO L390 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 9 treesize of output 3 [2022-11-03 01:54:50,524 INFO L390 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 [2022-11-03 01:54:50,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:50,560 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:50,561 INFO L390 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 [2022-11-03 01:54:50,599 INFO L390 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 9 treesize of output 3 [2022-11-03 01:54:50,609 INFO L390 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 [2022-11-03 01:54:50,625 INFO L390 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 [2022-11-03 01:54:50,635 INFO L390 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 [2022-11-03 01:54:50,647 INFO L390 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 [2022-11-03 01:54:50,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:50,717 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:50,717 INFO L390 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 [2022-11-03 01:54:50,796 INFO L356 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-03 01:54:50,796 INFO L390 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 19 treesize of output 18 [2022-11-03 01:54:50,817 INFO L390 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 23 treesize of output 11 [2022-11-03 01:54:50,851 INFO L356 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-03 01:54:50,851 INFO L390 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 19 treesize of output 18 [2022-11-03 01:54:50,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:50,915 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:50,915 INFO L390 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 [2022-11-03 01:54:50,989 INFO L390 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 [2022-11-03 01:54:51,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:51,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:51,014 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:54:51,014 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-03 01:54:51,037 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:54:51,037 INFO L390 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 7 [2022-11-03 01:54:51,068 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:54:51,068 INFO L390 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 20 treesize of output 22 [2022-11-03 01:54:51,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:51,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:51,104 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:54:51,104 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-03 01:54:51,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:51,157 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:51,157 INFO L390 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 [2022-11-03 01:54:51,220 INFO L390 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 [2022-11-03 01:54:51,247 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:54:51,248 INFO L390 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 20 treesize of output 22 [2022-11-03 01:54:51,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:51,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:51,280 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:54:51,281 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-03 01:54:51,318 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:54:51,319 INFO L390 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 7 [2022-11-03 01:54:51,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:51,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:51,347 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:54:51,347 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-03 01:54:51,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:51,874 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:54:51,874 INFO L390 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 [2022-11-03 01:54:51,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:51,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:51,919 INFO L390 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 [2022-11-03 01:54:51,935 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 13 for LOIs [2022-11-03 01:54:51,942 INFO L390 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 [2022-11-03 01:54:51,948 INFO L390 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 [2022-11-03 01:54:51,961 INFO L390 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 15 treesize of output 1 [2022-11-03 01:54:51,966 INFO L390 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 [2022-11-03 01:54:51,972 INFO L390 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 [2022-11-03 01:54:51,984 INFO L390 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 [2022-11-03 01:54:51,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:51,992 INFO L390 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 [2022-11-03 01:54:52,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:54:52,001 INFO L390 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 [2022-11-03 01:54:52,003 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:55:00,091 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4771#(and (or (not (<= (+ |ULTIMATE.start_sll_circular_prepend_~last~1#1.offset| 4) (select |#length| |ULTIMATE.start_sll_circular_prepend_~last~1#1.base|))) (not (<= 0 |ULTIMATE.start_sll_circular_prepend_~last~1#1.offset|))) (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_sll_circular_create_~len#1|) (= |ULTIMATE.start_main_~uneq~0#1| 5) (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= |ULTIMATE.start_sll_circular_prepend_~data#1| 5) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (<= 5 |ULTIMATE.start_sll_circular_prepend_~data#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (= 0 |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0) (<= 5 |ULTIMATE.start_sll_circular_prepend_#in~data#1|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.base|) (<= |ULTIMATE.start_sll_circular_prepend_#in~data#1| 5) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 01:55:00,092 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:55:00,092 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:55:00,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21] total 39 [2022-11-03 01:55:00,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804130154] [2022-11-03 01:55:00,092 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 01:55:00,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-11-03 01:55:00,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:55:00,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-11-03 01:55:00,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=3793, Unknown=1, NotChecked=124, Total=4160 [2022-11-03 01:55:00,096 INFO L87 Difference]: Start difference. First operand 97 states and 110 transitions. Second operand has 40 states, 29 states have (on average 1.8275862068965518) internal successors, (53), 32 states have internal predecessors, (53), 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) [2022-11-03 01:55:04,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:04,251 INFO L93 Difference]: Finished difference Result 194 states and 215 transitions. [2022-11-03 01:55:04,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-03 01:55:04,251 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 29 states have (on average 1.8275862068965518) internal successors, (53), 32 states have internal predecessors, (53), 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 34 [2022-11-03 01:55:04,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:04,253 INFO L225 Difference]: With dead ends: 194 [2022-11-03 01:55:04,253 INFO L226 Difference]: Without dead ends: 194 [2022-11-03 01:55:04,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1613 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=405, Invalid=5604, Unknown=1, NotChecked=152, Total=6162 [2022-11-03 01:55:04,257 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 325 mSDsluCounter, 1774 mSDsCounter, 0 mSdLazyCounter, 2587 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 2875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 227 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:04,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 1776 Invalid, 2875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2587 Invalid, 0 Unknown, 227 Unchecked, 2.5s Time] [2022-11-03 01:55:04,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-11-03 01:55:04,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 100. [2022-11-03 01:55:04,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 72 states have (on average 1.4861111111111112) internal successors, (107), 95 states have internal predecessors, (107), 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) [2022-11-03 01:55:04,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 113 transitions. [2022-11-03 01:55:04,262 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 113 transitions. Word has length 34 [2022-11-03 01:55:04,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:04,263 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 113 transitions. [2022-11-03 01:55:04,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 29 states have (on average 1.8275862068965518) internal successors, (53), 32 states have internal predecessors, (53), 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) [2022-11-03 01:55:04,263 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 113 transitions. [2022-11-03 01:55:04,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-03 01:55:04,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:04,264 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:04,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:04,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-03 01:55:04,481 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:55:04,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:04,482 INFO L85 PathProgramCache]: Analyzing trace with hash 39711172, now seen corresponding path program 1 times [2022-11-03 01:55:04,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:04,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57512963] [2022-11-03 01:55:04,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:04,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:05,068 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 01:55:05,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:05,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57512963] [2022-11-03 01:55:05,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57512963] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:55:05,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035554930] [2022-11-03 01:55:05,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:05,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:55:05,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:55:05,071 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:55:05,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-03 01:55:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:05,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-03 01:55:05,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:05,559 INFO L390 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 [2022-11-03 01:55:05,615 WARN L855 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int) (v_ArrVal_1461 (Array Int Int))) (and (<= (+ |node_create_~temp~0#1.base| 1) |c_#StackHeapBarrier|) (= (store |c_old(#memory_$Pointer$.base)| |node_create_~temp~0#1.base| v_ArrVal_1461) |c_#memory_$Pointer$.base|))) is different from true [2022-11-03 01:55:05,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:05,632 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2022-11-03 01:55:05,667 INFO L390 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 [2022-11-03 01:55:05,689 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2022-11-03 01:55:05,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:55:05,754 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_node_create_~temp~0#1.base_51| Int) (v_ArrVal_1465 (Array Int Int))) (or (not (= (select (select (store |c_#memory_$Pointer$.base| |v_node_create_~temp~0#1.base_51| v_ArrVal_1465) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|) 0)) (not (< |v_node_create_~temp~0#1.base_51| |c_#StackHeapBarrier|)))) is different from false [2022-11-03 01:55:05,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035554930] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:55:05,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [873838902] [2022-11-03 01:55:05,758 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-11-03 01:55:05,758 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:55:05,759 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:55:05,759 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:55:05,759 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:55:05,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:05,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:05,788 INFO L390 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 [2022-11-03 01:55:05,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:05,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:05,822 INFO L390 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 [2022-11-03 01:55:05,835 INFO L390 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 [2022-11-03 01:55:05,840 INFO L390 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 [2022-11-03 01:55:05,849 INFO L390 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 [2022-11-03 01:55:05,854 INFO L390 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 [2022-11-03 01:55:05,859 INFO L390 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 15 treesize of output 1 [2022-11-03 01:55:05,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:05,871 INFO L390 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 [2022-11-03 01:55:05,877 INFO L390 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 [2022-11-03 01:55:05,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:05,886 INFO L390 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 [2022-11-03 01:55:05,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:05,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:05,915 INFO L390 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 [2022-11-03 01:55:05,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:05,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:05,945 INFO L390 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 [2022-11-03 01:55:05,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:05,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:05,980 INFO L390 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 [2022-11-03 01:55:06,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:06,041 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:55:06,041 INFO L390 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 [2022-11-03 01:55:06,087 INFO L390 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 [2022-11-03 01:55:06,102 INFO L390 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 [2022-11-03 01:55:06,117 INFO L390 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 [2022-11-03 01:55:06,130 INFO L390 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 [2022-11-03 01:55:06,142 INFO L390 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 [2022-11-03 01:55:06,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:06,168 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:55:06,168 INFO L390 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 [2022-11-03 01:55:06,207 INFO L390 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 [2022-11-03 01:55:06,219 INFO L390 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 [2022-11-03 01:55:06,229 INFO L390 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 [2022-11-03 01:55:06,247 INFO L390 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 [2022-11-03 01:55:06,261 INFO L390 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 [2022-11-03 01:55:06,317 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2022-11-03 01:55:06,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:06,333 INFO L390 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 11 [2022-11-03 01:55:06,345 INFO L390 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 19 treesize of output 11 [2022-11-03 01:55:06,466 INFO L356 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-03 01:55:06,467 INFO L390 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 233 treesize of output 222 [2022-11-03 01:55:06,648 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:06,651 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:06,653 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:06,655 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:06,672 INFO L390 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 [2022-11-03 01:55:06,684 INFO L390 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 [2022-11-03 01:55:06,695 INFO L390 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 [2022-11-03 01:55:06,708 INFO L390 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 [2022-11-03 01:55:06,748 INFO L390 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 [2022-11-03 01:55:06,860 INFO L356 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-03 01:55:06,861 INFO L390 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 233 treesize of output 222 [2022-11-03 01:55:07,031 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:07,033 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:07,035 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:07,038 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:07,052 INFO L390 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 [2022-11-03 01:55:07,064 INFO L390 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 [2022-11-03 01:55:07,076 INFO L390 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 [2022-11-03 01:55:07,088 INFO L390 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 [2022-11-03 01:55:07,105 INFO L390 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 [2022-11-03 01:55:07,169 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2022-11-03 01:55:07,184 INFO L390 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 19 treesize of output 11 [2022-11-03 01:55:07,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:07,201 INFO L390 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 11 [2022-11-03 01:55:07,336 INFO L356 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-03 01:55:07,337 INFO L390 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 233 treesize of output 222 [2022-11-03 01:55:07,571 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:07,573 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:07,575 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:07,577 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:07,592 INFO L390 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 [2022-11-03 01:55:07,604 INFO L390 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 [2022-11-03 01:55:07,616 INFO L390 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 [2022-11-03 01:55:07,629 INFO L390 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 [2022-11-03 01:55:07,640 INFO L390 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 [2022-11-03 01:55:07,727 INFO L356 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-03 01:55:07,727 INFO L390 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 233 treesize of output 222 [2022-11-03 01:55:08,012 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:08,015 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:08,016 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:08,019 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:08,034 INFO L390 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 [2022-11-03 01:55:08,046 INFO L390 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 [2022-11-03 01:55:08,059 INFO L390 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 [2022-11-03 01:55:08,072 INFO L390 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 [2022-11-03 01:55:08,084 INFO L390 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 [2022-11-03 01:55:08,213 INFO L356 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-03 01:55:08,214 INFO L390 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 233 treesize of output 222 [2022-11-03 01:55:08,438 INFO L356 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-03 01:55:08,439 INFO L390 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 19 treesize of output 18 [2022-11-03 01:55:08,485 INFO L356 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-03 01:55:08,485 INFO L390 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 19 treesize of output 18 [2022-11-03 01:55:08,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:08,511 INFO L390 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 23 treesize of output 11 [2022-11-03 01:55:08,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:08,569 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:55:08,570 INFO L390 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 [2022-11-03 01:55:08,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:08,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:08,631 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:55:08,632 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-03 01:55:08,645 INFO L390 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 [2022-11-03 01:55:08,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:08,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:08,676 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:55:08,677 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-03 01:55:08,708 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:55:08,708 INFO L390 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 7 [2022-11-03 01:55:08,737 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:55:08,738 INFO L390 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 20 treesize of output 22 [2022-11-03 01:55:08,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:08,797 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:55:08,799 INFO L390 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 [2022-11-03 01:55:08,863 INFO L390 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 [2022-11-03 01:55:08,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:08,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:08,893 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:55:08,893 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-03 01:55:08,920 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:55:08,920 INFO L390 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 20 treesize of output 22 [2022-11-03 01:55:08,949 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:55:08,949 INFO L390 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 7 [2022-11-03 01:55:08,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:08,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:08,976 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:55:08,977 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-03 01:55:09,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:09,178 INFO L390 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 26 treesize of output 21 [2022-11-03 01:55:09,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:09,198 INFO L390 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 11 [2022-11-03 01:55:09,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:09,219 INFO L390 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 26 treesize of output 21 [2022-11-03 01:55:09,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:09,317 INFO L390 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 26 treesize of output 21 [2022-11-03 01:55:09,338 INFO L390 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 11 [2022-11-03 01:55:09,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:09,366 INFO L390 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 26 treesize of output 21 [2022-11-03 01:55:09,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:09,520 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:55:09,521 INFO L390 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 [2022-11-03 01:55:09,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:09,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:09,559 INFO L390 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 [2022-11-03 01:55:09,574 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 21 for LOIs [2022-11-03 01:55:09,584 INFO L390 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 [2022-11-03 01:55:09,594 INFO L390 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 [2022-11-03 01:55:09,610 INFO L390 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 [2022-11-03 01:55:09,618 INFO L390 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 [2022-11-03 01:55:09,627 INFO L390 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 15 treesize of output 1 [2022-11-03 01:55:09,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:09,644 INFO L390 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 [2022-11-03 01:55:09,652 INFO L390 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 [2022-11-03 01:55:09,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:09,661 INFO L390 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 [2022-11-03 01:55:09,667 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:55:18,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [873838902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:18,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:55:18,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [15, 15] total 43 [2022-11-03 01:55:18,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494625919] [2022-11-03 01:55:18,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:18,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-03 01:55:18,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:55:18,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-03 01:55:18,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=1570, Unknown=2, NotChecked=166, Total=1980 [2022-11-03 01:55:18,970 INFO L87 Difference]: Start difference. First operand 100 states and 113 transitions. Second operand has 22 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 states have internal predecessors, (21), 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) [2022-11-03 01:55:20,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:20,951 INFO L93 Difference]: Finished difference Result 125 states and 139 transitions. [2022-11-03 01:55:20,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 01:55:20,953 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 states have internal predecessors, (21), 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) Word has length 35 [2022-11-03 01:55:20,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:20,955 INFO L225 Difference]: With dead ends: 125 [2022-11-03 01:55:20,955 INFO L226 Difference]: Without dead ends: 125 [2022-11-03 01:55:20,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=242, Invalid=1570, Unknown=2, NotChecked=166, Total=1980 [2022-11-03 01:55:20,957 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 49 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:20,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 190 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-03 01:55:20,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-11-03 01:55:20,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 100. [2022-11-03 01:55:20,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 72 states have (on average 1.4722222222222223) internal successors, (106), 95 states have internal predecessors, (106), 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) [2022-11-03 01:55:20,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 112 transitions. [2022-11-03 01:55:20,961 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 112 transitions. Word has length 35 [2022-11-03 01:55:20,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:20,962 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 112 transitions. [2022-11-03 01:55:20,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 states have internal predecessors, (21), 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) [2022-11-03 01:55:20,962 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 112 transitions. [2022-11-03 01:55:20,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-03 01:55:20,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:20,963 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-03 01:55:20,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:21,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-03 01:55:21,165 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:55:21,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:21,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1922632036, now seen corresponding path program 1 times [2022-11-03 01:55:21,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:21,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292176599] [2022-11-03 01:55:21,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:21,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:21,764 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 01:55:21,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:21,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292176599] [2022-11-03 01:55:21,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292176599] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:55:21,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989821045] [2022-11-03 01:55:21,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:21,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:55:21,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:55:21,766 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:55:21,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-03 01:55:21,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:22,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-03 01:55:22,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:22,205 INFO L390 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 [2022-11-03 01:55:22,265 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1603 (Array Int Int)) (|node_create_~temp~0#1.base| Int)) (and (<= (+ |node_create_~temp~0#1.base| 1) |c_#StackHeapBarrier|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |node_create_~temp~0#1.base| v_ArrVal_1603)))) is different from true [2022-11-03 01:55:22,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:22,277 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2022-11-03 01:55:22,314 INFO L390 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 [2022-11-03 01:55:22,337 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2022-11-03 01:55:22,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:55:22,398 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_node_create_~temp~0#1.base_54| Int) (v_ArrVal_1607 (Array Int Int))) (or (not (= (select (select (store |c_#memory_$Pointer$.base| |v_node_create_~temp~0#1.base_54| v_ArrVal_1607) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|) 0)) (not (< |v_node_create_~temp~0#1.base_54| |c_#StackHeapBarrier|)))) is different from false [2022-11-03 01:55:22,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989821045] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:55:22,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [911344492] [2022-11-03 01:55:22,402 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2022-11-03 01:55:22,402 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:55:22,403 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:55:22,403 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:55:22,403 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:55:22,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:22,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:22,437 INFO L390 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 [2022-11-03 01:55:22,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:22,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:22,469 INFO L390 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 [2022-11-03 01:55:22,484 INFO L390 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 [2022-11-03 01:55:22,489 INFO L390 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 [2022-11-03 01:55:22,500 INFO L390 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 [2022-11-03 01:55:22,506 INFO L390 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 15 treesize of output 1 [2022-11-03 01:55:22,511 INFO L390 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 [2022-11-03 01:55:22,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:22,523 INFO L390 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 [2022-11-03 01:55:22,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:22,531 INFO L390 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 [2022-11-03 01:55:22,538 INFO L390 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 [2022-11-03 01:55:22,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:22,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:22,562 INFO L390 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 [2022-11-03 01:55:22,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:22,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:22,596 INFO L390 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 [2022-11-03 01:55:22,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:22,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:22,627 INFO L390 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 [2022-11-03 01:55:22,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:22,696 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:55:22,696 INFO L390 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 [2022-11-03 01:55:22,732 INFO L390 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 [2022-11-03 01:55:22,744 INFO L390 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 [2022-11-03 01:55:22,756 INFO L390 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 [2022-11-03 01:55:22,770 INFO L390 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 [2022-11-03 01:55:22,782 INFO L390 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 [2022-11-03 01:55:22,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:22,827 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:55:22,827 INFO L390 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 [2022-11-03 01:55:22,862 INFO L390 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 [2022-11-03 01:55:22,873 INFO L390 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 [2022-11-03 01:55:22,890 INFO L390 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 [2022-11-03 01:55:22,905 INFO L390 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 [2022-11-03 01:55:22,914 INFO L390 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 [2022-11-03 01:55:22,962 INFO L390 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 19 treesize of output 11 [2022-11-03 01:55:22,980 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2022-11-03 01:55:22,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:22,994 INFO L390 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 11 [2022-11-03 01:55:23,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:23,061 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:55:23,061 INFO L390 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 [2022-11-03 01:55:23,098 INFO L390 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 [2022-11-03 01:55:23,113 INFO L390 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 [2022-11-03 01:55:23,123 INFO L390 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 [2022-11-03 01:55:23,134 INFO L390 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 [2022-11-03 01:55:23,146 INFO L390 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 [2022-11-03 01:55:23,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:23,178 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:55:23,178 INFO L390 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 [2022-11-03 01:55:23,211 INFO L390 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 [2022-11-03 01:55:23,224 INFO L390 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 [2022-11-03 01:55:23,235 INFO L390 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 [2022-11-03 01:55:23,252 INFO L390 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 [2022-11-03 01:55:23,264 INFO L390 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 [2022-11-03 01:55:23,363 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:55:23,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:23,371 INFO L390 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 250 treesize of output 234 [2022-11-03 01:55:23,389 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:55:23,390 INFO L390 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 248 treesize of output 236 [2022-11-03 01:55:23,408 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:55:23,409 INFO L390 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 [2022-11-03 01:55:23,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:23,522 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:55:23,522 INFO L390 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 [2022-11-03 01:55:23,550 INFO L390 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 [2022-11-03 01:55:23,561 INFO L390 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 [2022-11-03 01:55:23,571 INFO L390 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 [2022-11-03 01:55:23,583 INFO L390 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 [2022-11-03 01:55:23,595 INFO L390 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 [2022-11-03 01:55:23,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:23,632 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:55:23,632 INFO L390 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 [2022-11-03 01:55:23,670 INFO L390 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 [2022-11-03 01:55:23,686 INFO L390 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 [2022-11-03 01:55:23,699 INFO L390 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 [2022-11-03 01:55:23,710 INFO L390 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 [2022-11-03 01:55:23,720 INFO L390 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 [2022-11-03 01:55:23,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:23,793 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:55:23,794 INFO L390 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 [2022-11-03 01:55:23,880 INFO L356 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-03 01:55:23,880 INFO L390 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 19 treesize of output 18 [2022-11-03 01:55:23,913 INFO L356 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-03 01:55:23,914 INFO L390 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 19 treesize of output 18 [2022-11-03 01:55:23,936 INFO L390 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 23 treesize of output 11 [2022-11-03 01:55:23,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:23,996 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:55:23,997 INFO L390 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 [2022-11-03 01:55:24,075 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:55:24,075 INFO L390 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 7 [2022-11-03 01:55:24,106 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:55:24,107 INFO L390 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 20 treesize of output 22 [2022-11-03 01:55:24,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:24,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:24,146 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:55:24,146 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-03 01:55:24,162 INFO L390 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 [2022-11-03 01:55:24,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:24,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:24,189 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:55:24,189 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-03 01:55:24,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:24,236 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:55:24,236 INFO L390 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 [2022-11-03 01:55:24,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:24,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:24,329 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:55:24,330 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-03 01:55:24,370 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:55:24,370 INFO L390 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 20 treesize of output 22 [2022-11-03 01:55:24,390 INFO L390 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 [2022-11-03 01:55:24,411 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:55:24,412 INFO L390 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 7 [2022-11-03 01:55:24,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:24,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:24,443 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:55:24,444 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-03 01:55:24,742 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:55:24,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:24,746 INFO L390 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 334 treesize of output 318 [2022-11-03 01:55:24,771 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:55:24,773 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:55:24,794 INFO L356 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-03 01:55:24,795 INFO L390 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 339 treesize of output 330 [2022-11-03 01:55:24,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:55:24,823 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:55:24,865 INFO L356 Elim1Store]: treesize reduction 51, result has 22.7 percent of original size [2022-11-03 01:55:24,866 INFO L390 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 3 new quantified variables, introduced 5 case distinctions, treesize of input 339 treesize of output 337 [2022-11-03 01:55:25,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:25,033 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 326 treesize of output 308 [2022-11-03 01:55:25,058 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:55:25,059 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:55:25,081 INFO L356 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-03 01:55:25,082 INFO L390 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 329 treesize of output 320 [2022-11-03 01:55:25,103 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:55:25,123 INFO L356 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-03 01:55:25,124 INFO L390 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 321 treesize of output 312 [2022-11-03 01:55:25,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:25,610 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:55:25,610 INFO L390 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 [2022-11-03 01:55:25,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:25,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:25,658 INFO L390 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 [2022-11-03 01:55:25,674 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 13 for LOIs [2022-11-03 01:55:25,681 INFO L390 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 [2022-11-03 01:55:25,686 INFO L390 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 [2022-11-03 01:55:25,699 INFO L390 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 [2022-11-03 01:55:25,705 INFO L390 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 15 treesize of output 1 [2022-11-03 01:55:25,711 INFO L390 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 [2022-11-03 01:55:25,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:25,724 INFO L390 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 [2022-11-03 01:55:25,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:25,732 INFO L390 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 [2022-11-03 01:55:25,739 INFO L390 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 [2022-11-03 01:55:25,743 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:55:40,706 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5696#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) |ULTIMATE.start_main_~ptr~0#1.base|) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#s~0#1.base|) (< |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| |#StackHeapBarrier|) (< |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |#StackHeapBarrier|) (= |ULTIMATE.start_main_~count~0#1| 1) (= |ULTIMATE.start_sll_circular_prepend_#in~head#1.base| |ULTIMATE.start_main_~#s~0#1.base|) (= (select (select |#memory_int| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) (+ 4 |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|)) |ULTIMATE.start_sll_circular_prepend_~data#1|) (<= |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_sll_circular_create_~len#1|) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (= (select |ULTIMATE.start_main_old_#valid#1| 1) 1) (= (select |ULTIMATE.start_main_old_#valid#1| 2) 1) (= |ULTIMATE.start_sll_circular_prepend_#in~head#1.base| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (= 8 (select |#length| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|)) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) (= |ULTIMATE.start_sll_circular_create_~head~0#1.base| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base|) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_sll_circular_prepend_~data#1| 5) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (< |ULTIMATE.start_sll_circular_create_~last~0#1.base| |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (not (= |ULTIMATE.start_sll_circular_create_~last~0#1.base| 0)) (<= (+ |ULTIMATE.start_main_~#s~0#1.offset| 4) (select |#length| |ULTIMATE.start_main_~#s~0#1.base|)) (= (select |#valid| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) 1) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (= |ULTIMATE.start_sll_circular_create_#in~data#1| |ULTIMATE.start_sll_circular_create_~data#1|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|)) (<= 5 |ULTIMATE.start_sll_circular_prepend_~data#1|) (= (select |ULTIMATE.start_main_old_#valid#1| 0) 0) (= |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_sll_circular_create_#in~len#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (= |ULTIMATE.start_sll_circular_create_~head~0#1.base| |ULTIMATE.start_sll_circular_create_#res#1.base|) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (= (select |ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_main_~#s~0#1.base|) 0) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) |ULTIMATE.start_main_~ptr~0#1.offset|) (<= |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (not (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| 0)) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0) (<= 5 |ULTIMATE.start_sll_circular_prepend_#in~data#1|) (not (= |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| 0)) (= 1 (select |#valid| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|)) (= |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|)) (= |ULTIMATE.start_sll_circular_prepend_#in~data#1| |ULTIMATE.start_main_~uneq~0#1|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_prepend_~head#1.base|) |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= |ULTIMATE.start_sll_circular_prepend_#in~data#1| 5) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 01:55:40,707 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:55:40,707 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:55:40,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 23 [2022-11-03 01:55:40,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214940985] [2022-11-03 01:55:40,707 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 01:55:40,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-03 01:55:40,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:55:40,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-03 01:55:40,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=1713, Unknown=2, NotChecked=174, Total=2162 [2022-11-03 01:55:40,709 INFO L87 Difference]: Start difference. First operand 100 states and 112 transitions. Second operand has 23 states, 18 states have (on average 2.388888888888889) internal successors, (43), 20 states have internal predecessors, (43), 4 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-03 01:55:41,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:41,338 INFO L93 Difference]: Finished difference Result 88 states and 97 transitions. [2022-11-03 01:55:41,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 01:55:41,339 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 18 states have (on average 2.388888888888889) internal successors, (43), 20 states have internal predecessors, (43), 4 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 38 [2022-11-03 01:55:41,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:41,340 INFO L225 Difference]: With dead ends: 88 [2022-11-03 01:55:41,340 INFO L226 Difference]: Without dead ends: 88 [2022-11-03 01:55:41,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 55 SyntacticMatches, 4 SemanticMatches, 51 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=352, Invalid=2204, Unknown=2, NotChecked=198, Total=2756 [2022-11-03 01:55:41,342 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 287 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 82 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:41,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 513 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 367 Invalid, 0 Unknown, 82 Unchecked, 0.3s Time] [2022-11-03 01:55:41,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-03 01:55:41,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-11-03 01:55:41,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 60 states have (on average 1.5166666666666666) internal successors, (91), 83 states have internal predecessors, (91), 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) [2022-11-03 01:55:41,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 97 transitions. [2022-11-03 01:55:41,347 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 97 transitions. Word has length 38 [2022-11-03 01:55:41,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:41,348 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 97 transitions. [2022-11-03 01:55:41,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 18 states have (on average 2.388888888888889) internal successors, (43), 20 states have internal predecessors, (43), 4 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-03 01:55:41,349 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 97 transitions. [2022-11-03 01:55:41,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-03 01:55:41,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:41,350 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:41,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-11-03 01:55:41,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:55:41,569 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:55:41,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:41,570 INFO L85 PathProgramCache]: Analyzing trace with hash 139348900, now seen corresponding path program 2 times [2022-11-03 01:55:41,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:41,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056687391] [2022-11-03 01:55:41,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:41,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:41,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:43,728 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:55:43,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:43,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056687391] [2022-11-03 01:55:43,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056687391] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:55:43,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488040061] [2022-11-03 01:55:43,729 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 01:55:43,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:55:43,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:55:43,734 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:55:43,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-03 01:55:44,115 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 01:55:44,116 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 01:55:44,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 114 conjunts are in the unsatisfiable core [2022-11-03 01:55:44,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:44,174 INFO L390 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 [2022-11-03 01:55:44,554 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:55:44,554 INFO L390 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 [2022-11-03 01:55:44,774 INFO L390 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 [2022-11-03 01:55:44,794 INFO L390 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 [2022-11-03 01:55:44,925 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:55:44,937 INFO L356 Elim1Store]: treesize reduction 37, result has 28.8 percent of original size [2022-11-03 01:55:44,938 INFO L390 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 95 treesize of output 49 [2022-11-03 01:55:44,949 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2022-11-03 01:55:45,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:55:45,080 INFO L356 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-03 01:55:45,080 INFO L390 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 85 treesize of output 39 [2022-11-03 01:55:45,089 INFO L390 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 0 case distinctions, treesize of input 26 treesize of output 13 [2022-11-03 01:55:45,229 WARN L855 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int) (v_ArrVal_1732 (Array Int Int)) (v_ArrVal_1731 (Array Int Int))) (and (<= (+ |node_create_~temp~0#1.base| 1) |c_#StackHeapBarrier|) (= (store |c_old(#memory_$Pointer$.offset)| |node_create_~temp~0#1.base| v_ArrVal_1732) |c_#memory_$Pointer$.offset|) (= (store |c_old(#memory_$Pointer$.base)| |node_create_~temp~0#1.base| v_ArrVal_1731) |c_#memory_$Pointer$.base|) (= 0 (select |c_old(#valid)| |node_create_~temp~0#1.base|)))) is different from true [2022-11-03 01:55:45,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:45,288 INFO L356 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2022-11-03 01:55:45,288 INFO L390 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 91 treesize of output 85 [2022-11-03 01:55:45,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:45,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:45,306 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-03 01:55:45,307 INFO L390 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 96 treesize of output 91 [2022-11-03 01:55:45,343 INFO L356 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2022-11-03 01:55:45,343 INFO L390 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 32 treesize of output 34 [2022-11-03 01:55:45,769 INFO L356 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-03 01:55:45,769 INFO L390 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 62 [2022-11-03 01:55:45,951 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:55:45,959 INFO L356 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-03 01:55:45,960 INFO L390 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 60 treesize of output 26 [2022-11-03 01:55:46,007 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-11-03 01:55:46,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:55:46,132 INFO L356 Elim1Store]: treesize reduction 5, result has 75.0 percent of original size [2022-11-03 01:55:46,133 INFO L390 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 24 treesize of output 23 [2022-11-03 01:55:46,362 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1740 (Array Int Int)) (|v_node_create_~temp~0#1.base_57| Int) (v_ArrVal_1739 (Array Int Int))) (or (let ((.cse0 (store |c_#memory_$Pointer$.base| |v_node_create_~temp~0#1.base_57| v_ArrVal_1740))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|))) (= (let ((.cse3 (store |c_#memory_$Pointer$.offset| |v_node_create_~temp~0#1.base_57| v_ArrVal_1739))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|))) (select (select .cse0 (select (select .cse0 .cse1) .cse2)) (select (select .cse3 .cse1) .cse2)))) .cse1))) (not (= (select |c_#valid| |v_node_create_~temp~0#1.base_57|) 0)) (not (< |v_node_create_~temp~0#1.base_57| |c_#StackHeapBarrier|)))) is different from false [2022-11-03 01:55:46,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488040061] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:55:46,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1455825577] [2022-11-03 01:55:46,366 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-03 01:55:46,367 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:55:46,367 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:55:46,368 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:55:46,368 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:55:46,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:46,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:46,391 INFO L390 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 [2022-11-03 01:55:46,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:46,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:46,420 INFO L390 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 [2022-11-03 01:55:46,431 INFO L390 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 [2022-11-03 01:55:46,436 INFO L390 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 [2022-11-03 01:55:46,443 INFO L390 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 [2022-11-03 01:55:46,448 INFO L390 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 15 treesize of output 1 [2022-11-03 01:55:46,453 INFO L390 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 [2022-11-03 01:55:46,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:46,465 INFO L390 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 [2022-11-03 01:55:46,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:46,473 INFO L390 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 [2022-11-03 01:55:46,479 INFO L390 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 [2022-11-03 01:55:46,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:46,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:46,507 INFO L390 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 [2022-11-03 01:55:46,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:46,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:46,536 INFO L390 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 [2022-11-03 01:55:46,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:46,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:46,566 INFO L390 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 [2022-11-03 01:55:46,696 INFO L356 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-03 01:55:46,697 INFO L390 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 208 treesize of output 197 [2022-11-03 01:55:46,868 INFO L390 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 [2022-11-03 01:55:46,883 INFO L390 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 [2022-11-03 01:55:46,897 INFO L390 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 9 treesize of output 3 [2022-11-03 01:55:46,915 INFO L390 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 [2022-11-03 01:55:46,926 INFO L390 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 [2022-11-03 01:55:46,942 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:46,944 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:46,946 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:46,949 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:46,951 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:47,038 INFO L356 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-03 01:55:47,039 INFO L390 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 208 treesize of output 197 [2022-11-03 01:55:47,217 INFO L390 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 [2022-11-03 01:55:47,228 INFO L390 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 [2022-11-03 01:55:47,241 INFO L390 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 [2022-11-03 01:55:47,253 INFO L390 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 [2022-11-03 01:55:47,264 INFO L390 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 [2022-11-03 01:55:47,276 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:47,278 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:47,280 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:47,284 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:47,285 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:55:47,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:47,343 INFO L390 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 11 [2022-11-03 01:55:47,354 INFO L390 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 19 treesize of output 11 [2022-11-03 01:55:47,367 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2022-11-03 01:55:47,554 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:55:47,564 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:55:47,573 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:55:47,862 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:55:47,875 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:55:47,894 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:55:48,050 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:55:48,057 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:55:48,058 INFO L390 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 15 treesize of output 7 [2022-11-03 01:55:48,073 INFO L390 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 [2022-11-03 01:55:48,090 INFO L390 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 [2022-11-03 01:55:48,105 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:55:48,112 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:55:48,113 INFO L390 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 15 treesize of output 7 [2022-11-03 01:55:48,270 INFO L390 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 [2022-11-03 01:55:48,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:55:48,298 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:55:48,298 INFO L390 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 15 treesize of output 7 [2022-11-03 01:55:48,312 INFO L390 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 [2022-11-03 01:55:48,329 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:55:48,336 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:55:48,337 INFO L390 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 15 treesize of output 7 [2022-11-03 01:55:48,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:48,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:48,837 INFO L390 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 [2022-11-03 01:55:48,848 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 21 for LOIs [2022-11-03 01:55:48,860 INFO L390 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 [2022-11-03 01:55:48,866 INFO L390 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 [2022-11-03 01:55:48,886 INFO L390 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 [2022-11-03 01:55:48,893 INFO L390 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 15 treesize of output 1 [2022-11-03 01:55:48,901 INFO L390 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 [2022-11-03 01:55:48,923 INFO L390 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 [2022-11-03 01:55:48,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:48,932 INFO L390 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 [2022-11-03 01:55:48,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:55:48,941 INFO L390 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 [2022-11-03 01:55:48,948 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:55:54,809 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6105#(and (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (= |ULTIMATE.start_main_~uneq~0#1| 5) (not (= (select |#valid| |ULTIMATE.start_sll_circular_prepend_~last~1#1.base|) 1)) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= |ULTIMATE.start_sll_circular_prepend_~data#1| 5) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (<= 5 |ULTIMATE.start_sll_circular_prepend_~data#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (= 0 |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0) (<= 5 |ULTIMATE.start_sll_circular_prepend_#in~data#1|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.base|) (<= |ULTIMATE.start_sll_circular_prepend_#in~data#1| 5) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 01:55:54,809 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:55:54,809 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:55:54,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 23] total 41 [2022-11-03 01:55:54,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169505340] [2022-11-03 01:55:54,809 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 01:55:54,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-03 01:55:54,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:55:54,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-03 01:55:54,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=3689, Unknown=2, NotChecked=246, Total=4160 [2022-11-03 01:55:54,813 INFO L87 Difference]: Start difference. First operand 88 states and 97 transitions. Second operand has 41 states, 32 states have (on average 1.875) internal successors, (60), 34 states have internal predecessors, (60), 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) [2022-11-03 01:55:56,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:56,537 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions. [2022-11-03 01:55:56,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-03 01:55:56,538 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 32 states have (on average 1.875) internal successors, (60), 34 states have internal predecessors, (60), 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 38 [2022-11-03 01:55:56,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:56,538 INFO L225 Difference]: With dead ends: 93 [2022-11-03 01:55:56,538 INFO L226 Difference]: Without dead ends: 93 [2022-11-03 01:55:56,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 47 SyntacticMatches, 5 SemanticMatches, 73 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1608 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=312, Invalid=4950, Unknown=2, NotChecked=286, Total=5550 [2022-11-03 01:55:56,541 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 60 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 986 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 208 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:56,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 841 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 986 Invalid, 0 Unknown, 208 Unchecked, 0.9s Time] [2022-11-03 01:55:56,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-03 01:55:56,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 75. [2022-11-03 01:55:56,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 51 states have (on average 1.4901960784313726) internal successors, (76), 70 states have internal predecessors, (76), 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) [2022-11-03 01:55:56,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 82 transitions. [2022-11-03 01:55:56,546 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 82 transitions. Word has length 38 [2022-11-03 01:55:56,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:56,547 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 82 transitions. [2022-11-03 01:55:56,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 32 states have (on average 1.875) internal successors, (60), 34 states have internal predecessors, (60), 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) [2022-11-03 01:55:56,548 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 82 transitions. [2022-11-03 01:55:56,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-03 01:55:56,548 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:56,548 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-03 01:55:56,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-03 01:55:56,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:55:56,753 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:55:56,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:56,754 INFO L85 PathProgramCache]: Analyzing trace with hash 699217306, now seen corresponding path program 1 times [2022-11-03 01:55:56,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:56,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299248080] [2022-11-03 01:55:56,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:56,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:57,395 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 01:55:57,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:57,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299248080] [2022-11-03 01:55:57,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299248080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:57,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:57,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 01:55:57,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151905291] [2022-11-03 01:55:57,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:57,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 01:55:57,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:55:57,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 01:55:57,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:55:57,397 INFO L87 Difference]: Start difference. First operand 75 states and 82 transitions. Second operand has 10 states, 7 states have (on average 3.857142857142857) internal successors, (27), 9 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-03 01:55:57,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:57,760 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2022-11-03 01:55:57,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 01:55:57,761 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 3.857142857142857) internal successors, (27), 9 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2022-11-03 01:55:57,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:57,762 INFO L225 Difference]: With dead ends: 91 [2022-11-03 01:55:57,762 INFO L226 Difference]: Without dead ends: 91 [2022-11-03 01:55:57,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-03 01:55:57,763 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 205 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:57,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 221 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 01:55:57,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-03 01:55:57,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 72. [2022-11-03 01:55:57,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 67 states have internal predecessors, (73), 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) [2022-11-03 01:55:57,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 79 transitions. [2022-11-03 01:55:57,768 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 79 transitions. Word has length 39 [2022-11-03 01:55:57,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:57,768 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 79 transitions. [2022-11-03 01:55:57,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 3.857142857142857) internal successors, (27), 9 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-03 01:55:57,769 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 79 transitions. [2022-11-03 01:55:57,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-03 01:55:57,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:57,769 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-03 01:55:57,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-03 01:55:57,770 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:55:57,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:57,770 INFO L85 PathProgramCache]: Analyzing trace with hash 699217307, now seen corresponding path program 1 times [2022-11-03 01:55:57,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:57,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443033168] [2022-11-03 01:55:57,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:57,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:59,229 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 01:55:59,229 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:59,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443033168] [2022-11-03 01:55:59,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443033168] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:55:59,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721855112] [2022-11-03 01:55:59,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:59,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:55:59,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:55:59,232 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:55:59,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-03 01:55:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:59,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-03 01:55:59,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:59,897 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:55:59,910 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:55:59,999 INFO L356 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-03 01:55:59,999 INFO L390 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 31 treesize of output 26 [2022-11-03 01:56:00,017 INFO L356 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-03 01:56:00,018 INFO L390 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 38 treesize of output 29 [2022-11-03 01:56:00,121 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-03 01:56:00,122 INFO L390 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 41 treesize of output 21 [2022-11-03 01:56:00,132 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-03 01:56:00,133 INFO L390 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 30 treesize of output 14 [2022-11-03 01:56:00,173 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 01:56:00,174 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:56:00,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721855112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:56:00,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 01:56:00,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [18] total 27 [2022-11-03 01:56:00,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500612599] [2022-11-03 01:56:00,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:56:00,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 01:56:00,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:56:00,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 01:56:00,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2022-11-03 01:56:00,176 INFO L87 Difference]: Start difference. First operand 72 states and 79 transitions. Second operand has 11 states, 8 states have (on average 3.625) internal successors, (29), 10 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-03 01:56:00,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:00,501 INFO L93 Difference]: Finished difference Result 72 states and 78 transitions. [2022-11-03 01:56:00,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 01:56:00,502 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 3.625) internal successors, (29), 10 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2022-11-03 01:56:00,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:00,503 INFO L225 Difference]: With dead ends: 72 [2022-11-03 01:56:00,503 INFO L226 Difference]: Without dead ends: 72 [2022-11-03 01:56:00,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=92, Invalid=838, Unknown=0, NotChecked=0, Total=930 [2022-11-03 01:56:00,505 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 109 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:00,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 223 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 209 Invalid, 0 Unknown, 16 Unchecked, 0.2s Time] [2022-11-03 01:56:00,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-03 01:56:00,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2022-11-03 01:56:00,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 51 states have (on average 1.392156862745098) internal successors, (71), 65 states have internal predecessors, (71), 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) [2022-11-03 01:56:00,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2022-11-03 01:56:00,509 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 39 [2022-11-03 01:56:00,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:00,509 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2022-11-03 01:56:00,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 3.625) internal successors, (29), 10 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-03 01:56:00,510 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2022-11-03 01:56:00,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-03 01:56:00,510 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:00,511 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1] [2022-11-03 01:56:00,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:00,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-03 01:56:00,712 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:56:00,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:00,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1932935052, now seen corresponding path program 1 times [2022-11-03 01:56:00,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:56:00,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348830676] [2022-11-03 01:56:00,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:00,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:56:00,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:02,149 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:56:02,149 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:56:02,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348830676] [2022-11-03 01:56:02,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348830676] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:56:02,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65788741] [2022-11-03 01:56:02,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:02,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:56:02,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:56:02,152 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:56:02,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-03 01:56:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:02,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 86 conjunts are in the unsatisfiable core [2022-11-03 01:56:02,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:02,510 INFO L390 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 [2022-11-03 01:56:02,727 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:56:02,727 INFO L390 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 [2022-11-03 01:56:02,866 INFO L390 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 [2022-11-03 01:56:02,992 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-03 01:56:02,993 INFO L390 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 31 treesize of output 30 [2022-11-03 01:56:03,084 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:56:03,085 INFO L390 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 26 treesize of output 17 [2022-11-03 01:56:03,092 INFO L390 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 [2022-11-03 01:56:03,098 INFO L390 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 [2022-11-03 01:56:03,220 WARN L855 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int) (v_ArrVal_2126 (Array Int Int)) (v_ArrVal_2125 (Array Int Int))) (and (<= (+ |node_create_~temp~0#1.base| 1) |c_#StackHeapBarrier|) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |node_create_~temp~0#1.base| v_ArrVal_2126)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |node_create_~temp~0#1.base| v_ArrVal_2125)) (= 0 (select |c_old(#valid)| |node_create_~temp~0#1.base|)))) is different from true [2022-11-03 01:56:03,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:03,254 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 01:56:03,255 INFO L390 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 32 treesize of output 36 [2022-11-03 01:56:03,272 INFO L356 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-11-03 01:56:03,273 INFO L390 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 [2022-11-03 01:56:03,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:03,281 INFO L390 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 [2022-11-03 01:56:03,369 INFO L390 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 [2022-11-03 01:56:03,480 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:56:03,480 INFO L390 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 35 treesize of output 18 [2022-11-03 01:56:03,514 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-11-03 01:56:03,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:03,731 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_node_create_~temp~0#1.base_60| Int) (v_ArrVal_2134 (Array Int Int)) (v_ArrVal_2133 (Array Int Int))) (or (not (= (select |c_#valid| |v_node_create_~temp~0#1.base_60|) 0)) (not (let ((.cse0 (store |c_#memory_$Pointer$.base| |v_node_create_~temp~0#1.base_60| v_ArrVal_2134))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|))) (= (select (select .cse0 .cse1) (select (select (store |c_#memory_$Pointer$.offset| |v_node_create_~temp~0#1.base_60| v_ArrVal_2133) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|)) .cse1)))) (not (< |v_node_create_~temp~0#1.base_60| |c_#StackHeapBarrier|)))) is different from false [2022-11-03 01:56:03,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65788741] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:56:03,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2032719320] [2022-11-03 01:56:03,736 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2022-11-03 01:56:03,736 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:56:03,737 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:56:03,737 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:56:03,737 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:56:03,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:03,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:03,763 INFO L390 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 [2022-11-03 01:56:03,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:03,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:03,795 INFO L390 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 [2022-11-03 01:56:03,808 INFO L390 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 [2022-11-03 01:56:03,813 INFO L390 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 [2022-11-03 01:56:03,821 INFO L390 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 [2022-11-03 01:56:03,826 INFO L390 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 15 treesize of output 1 [2022-11-03 01:56:03,831 INFO L390 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 [2022-11-03 01:56:03,842 INFO L390 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 [2022-11-03 01:56:03,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:03,852 INFO L390 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 [2022-11-03 01:56:03,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:03,860 INFO L390 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 [2022-11-03 01:56:03,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:03,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:03,885 INFO L390 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 [2022-11-03 01:56:03,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:03,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:03,917 INFO L390 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 [2022-11-03 01:56:03,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:03,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:03,951 INFO L390 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 [2022-11-03 01:56:04,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:04,013 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:56:04,014 INFO L390 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 [2022-11-03 01:56:04,049 INFO L390 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 [2022-11-03 01:56:04,061 INFO L390 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 [2022-11-03 01:56:04,074 INFO L390 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 [2022-11-03 01:56:04,086 INFO L390 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 [2022-11-03 01:56:04,100 INFO L390 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 [2022-11-03 01:56:04,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:04,132 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:56:04,132 INFO L390 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 [2022-11-03 01:56:04,163 INFO L390 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 [2022-11-03 01:56:04,173 INFO L390 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 [2022-11-03 01:56:04,186 INFO L390 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 [2022-11-03 01:56:04,202 INFO L390 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 [2022-11-03 01:56:04,212 INFO L390 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 [2022-11-03 01:56:04,312 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:56:04,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:04,314 INFO L390 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 250 treesize of output 234 [2022-11-03 01:56:04,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:56:04,333 INFO L390 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 248 treesize of output 236 [2022-11-03 01:56:04,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:56:04,355 INFO L390 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 [2022-11-03 01:56:04,574 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:56:04,582 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:56:04,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:56:04,786 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:56:04,802 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:56:04,815 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:56:04,910 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:56:04,917 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:56:04,917 INFO L390 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 15 treesize of output 7 [2022-11-03 01:56:04,931 INFO L390 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 [2022-11-03 01:56:04,948 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:56:04,955 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:56:04,955 INFO L390 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 15 treesize of output 7 [2022-11-03 01:56:04,970 INFO L390 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 [2022-11-03 01:56:05,074 INFO L390 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 [2022-11-03 01:56:05,091 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:56:05,097 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:56:05,098 INFO L390 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 15 treesize of output 7 [2022-11-03 01:56:05,112 INFO L390 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 [2022-11-03 01:56:05,126 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:56:05,132 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:56:05,133 INFO L390 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 15 treesize of output 7 [2022-11-03 01:56:05,345 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:56:05,377 INFO L356 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2022-11-03 01:56:05,377 INFO L390 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 3 case distinctions, treesize of input 51 treesize of output 41 [2022-11-03 01:56:05,399 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:56:05,440 INFO L356 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2022-11-03 01:56:05,440 INFO L390 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 3 case distinctions, treesize of input 51 treesize of output 41 [2022-11-03 01:56:05,469 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:56:05,514 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:56:05,546 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:56:05,590 INFO L356 Elim1Store]: treesize reduction 60, result has 31.0 percent of original size [2022-11-03 01:56:05,590 INFO L390 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 3 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 43 [2022-11-03 01:56:05,622 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:56:05,659 INFO L356 Elim1Store]: treesize reduction 68, result has 21.8 percent of original size [2022-11-03 01:56:05,659 INFO L390 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 3 new quantified variables, introduced 5 case distinctions, treesize of input 54 treesize of output 44 [2022-11-03 01:56:05,888 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:56:05,904 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:56:06,107 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:56:06,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:06,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:06,898 INFO L390 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 [2022-11-03 01:56:06,912 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 13 for LOIs [2022-11-03 01:56:06,920 INFO L390 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 [2022-11-03 01:56:06,925 INFO L390 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 [2022-11-03 01:56:06,939 INFO L390 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 [2022-11-03 01:56:06,944 INFO L390 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 15 treesize of output 1 [2022-11-03 01:56:06,950 INFO L390 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 [2022-11-03 01:56:06,975 INFO L390 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 [2022-11-03 01:56:06,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:06,984 INFO L390 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 [2022-11-03 01:56:06,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:06,994 INFO L390 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 [2022-11-03 01:56:06,998 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:56:19,437 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6995#(and (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |#NULL.base|) (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= 5 |ULTIMATE.start_main_~uneq~0#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_sll_circular_prepend_~new_head~1#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_prepend_~last~1#1.base|) |ULTIMATE.start_sll_circular_prepend_~last~1#1.offset|)) (= (select |#valid| |ULTIMATE.start_main_~#s~0#1.base|) 1) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= (select |#valid| |ULTIMATE.start_sll_circular_prepend_~last~1#1.base|) 1) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_~last~1#1.offset|) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.offset|) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_sll_circular_prepend_~data#1| 5) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= (+ |ULTIMATE.start_main_~#s~0#1.offset| 4) (select |#length| |ULTIMATE.start_main_~#s~0#1.base|)) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (<= (+ |ULTIMATE.start_sll_circular_prepend_~last~1#1.offset| 4) (select |#length| |ULTIMATE.start_sll_circular_prepend_~last~1#1.base|)) (<= 5 |ULTIMATE.start_sll_circular_prepend_~data#1|) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |#NULL.base| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_prepend_~last~1#1.base|) |ULTIMATE.start_sll_circular_prepend_~last~1#1.offset|) |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|) (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| 4)))) (<= |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0) (<= 5 |ULTIMATE.start_sll_circular_prepend_#in~data#1|) (<= 0 (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_prepend_~head#1.base|) (<= |ULTIMATE.start_sll_circular_prepend_#in~data#1| 5) (<= 1 |ULTIMATE.start_main_~data~0#1|) (<= 0 |ULTIMATE.start_sll_circular_prepend_#in~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|))' at error location [2022-11-03 01:56:19,437 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:56:19,437 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:56:19,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 37 [2022-11-03 01:56:19,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372411037] [2022-11-03 01:56:19,438 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 01:56:19,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-03 01:56:19,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:56:19,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-03 01:56:19,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=4029, Unknown=2, NotChecked=258, Total=4556 [2022-11-03 01:56:19,441 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand has 37 states, 28 states have (on average 2.0357142857142856) internal successors, (57), 31 states have internal predecessors, (57), 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) [2022-11-03 01:56:21,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:21,063 INFO L93 Difference]: Finished difference Result 70 states and 76 transitions. [2022-11-03 01:56:21,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 01:56:21,063 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 28 states have (on average 2.0357142857142856) internal successors, (57), 31 states have internal predecessors, (57), 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 41 [2022-11-03 01:56:21,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:21,064 INFO L225 Difference]: With dead ends: 70 [2022-11-03 01:56:21,064 INFO L226 Difference]: Without dead ends: 70 [2022-11-03 01:56:21,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 54 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1647 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=371, Invalid=5335, Unknown=2, NotChecked=298, Total=6006 [2022-11-03 01:56:21,066 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 135 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 1079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 74 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:21,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 838 Invalid, 1079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 962 Invalid, 0 Unknown, 74 Unchecked, 0.8s Time] [2022-11-03 01:56:21,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-03 01:56:21,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-11-03 01:56:21,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 65 states have internal predecessors, (70), 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) [2022-11-03 01:56:21,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 76 transitions. [2022-11-03 01:56:21,071 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 76 transitions. Word has length 41 [2022-11-03 01:56:21,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:21,071 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 76 transitions. [2022-11-03 01:56:21,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 28 states have (on average 2.0357142857142856) internal successors, (57), 31 states have internal predecessors, (57), 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) [2022-11-03 01:56:21,072 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 76 transitions. [2022-11-03 01:56:21,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-03 01:56:21,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:21,073 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1] [2022-11-03 01:56:21,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-11-03 01:56:21,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-03 01:56:21,274 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2022-11-03 01:56:21,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:21,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1380673697, now seen corresponding path program 1 times [2022-11-03 01:56:21,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:56:21,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048068989] [2022-11-03 01:56:21,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:21,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:56:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:24,350 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:56:24,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:56:24,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048068989] [2022-11-03 01:56:24,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048068989] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:56:24,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081444296] [2022-11-03 01:56:24,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:24,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:56:24,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:56:24,352 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:56:24,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffbafde6-638f-44d7-9c41-68b19a5c5a65/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-03 01:56:24,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:24,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 156 conjunts are in the unsatisfiable core [2022-11-03 01:56:24,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:24,736 INFO L390 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 [2022-11-03 01:56:24,911 INFO L390 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 [2022-11-03 01:56:25,122 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 01:56:25,123 INFO L390 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 [2022-11-03 01:56:25,348 INFO L390 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 [2022-11-03 01:56:25,498 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-03 01:56:25,498 INFO L390 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 57 treesize of output 44 [2022-11-03 01:56:25,649 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:56:25,649 INFO L390 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 52 treesize of output 27 [2022-11-03 01:56:25,657 INFO L390 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 [2022-11-03 01:56:25,662 INFO L390 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 [2022-11-03 01:56:25,846 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:56:26,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:26,936 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2022-11-03 01:56:26,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:26,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:26,968 INFO L356 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-03 01:56:26,968 INFO L390 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 68 treesize of output 53 [2022-11-03 01:56:26,999 INFO L356 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-11-03 01:56:26,999 INFO L390 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 [2022-11-03 01:56:28,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:28,100 INFO L390 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 21 [2022-11-03 01:56:28,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:28,515 INFO L356 Elim1Store]: treesize reduction 81, result has 9.0 percent of original size [2022-11-03 01:56:28,515 INFO L390 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 7 new quantified variables, introduced 12 case distinctions, treesize of input 90 treesize of output 47 [2022-11-03 01:56:28,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:28,830 INFO L390 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 21 treesize of output 20 [2022-11-03 01:56:28,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:28,871 INFO L390 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 16 treesize of output 18 [2022-11-03 01:56:28,892 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 01:56:28,901 INFO L390 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 [2022-11-03 01:56:29,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:29,020 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 37 [2022-11-03 01:56:29,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:29,032 INFO L390 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 40 treesize of output 31 [2022-11-03 01:56:29,039 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 26 [2022-11-03 01:56:29,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:29,239 INFO L390 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 53 treesize of output 29 [2022-11-03 01:56:29,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:29,246 INFO L390 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 39 treesize of output 19 [2022-11-03 01:56:29,290 INFO L390 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 [2022-11-03 01:56:29,294 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:56:29,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:29,441 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2304 (Array Int Int))) (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|)) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|)) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) is different from false [2022-11-03 01:56:29,450 INFO L390 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 230 treesize of output 226 [2022-11-03 01:56:29,456 INFO L390 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 526 treesize of output 510 [2022-11-03 01:56:33,293 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse32 (= |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|)) (.cse10 (= |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset| |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse9 (+ |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| 4))) (let ((.cse26 (forall ((v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int))) (let ((.cse71 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304))) (let ((.cse68 (select .cse71 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse68 .cse9)) (forall ((v_arrayElimCell_1092 Int)) (let ((.cse69 (select .cse71 v_arrayElimCell_1092))) (or (forall ((v_arrayElimCell_1093 Int)) (let ((.cse70 (+ v_arrayElimCell_1093 4))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse69 .cse70)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse68 .cse70))))) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse69 .cse9)))))))))) (.cse27 (forall ((v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int))) (let ((.cse66 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select .cse66 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse9)) (forall ((v_arrayElimCell_1092 Int)) (let ((.cse67 (select .cse66 v_arrayElimCell_1092))) (or (forall ((v_arrayElimCell_1093 Int)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse67 (+ v_arrayElimCell_1093 4)))) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse67 .cse9))))))))) (.cse14 (forall ((v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int)) (v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304) v_arrayElimCell_1092) (+ v_arrayElimCell_1093 4))))) (.cse15 (forall ((v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int)) (v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (let ((.cse65 (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304) v_arrayElimCell_1092))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse65 (+ v_arrayElimCell_1093 4))) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse65 .cse9)))))) (.cse11 (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|)) (.cse1 (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse48 (forall ((v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int)) (v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (let ((.cse64 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304))) (let ((.cse62 (select .cse64 v_arrayElimCell_1092)) (.cse63 (+ v_arrayElimCell_1093 4))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse62 .cse63)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse62 .cse9)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select .cse64 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse63))))))) (.cse53 (forall ((v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int)) (v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (let ((.cse60 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304)) (.cse61 (+ v_arrayElimCell_1093 4))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select .cse60 v_arrayElimCell_1092) .cse61)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select .cse60 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse61)))))) (.cse54 (forall ((v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int)) (v_arrayElimCell_1092 Int)) (let ((.cse59 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304))) (let ((.cse57 (select .cse59 v_arrayElimCell_1092))) (or (forall ((v_arrayElimCell_1093 Int)) (let ((.cse58 (+ v_arrayElimCell_1093 4))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse57 .cse58)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select .cse59 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse58))))) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse57 .cse9))))))) (.cse33 (forall ((v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int)) (v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (let ((.cse55 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304))) (let ((.cse56 (select .cse55 v_arrayElimCell_1092))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select .cse55 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse9)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse56 (+ v_arrayElimCell_1093 4))) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse56 .cse9))))))) (.cse3 (not .cse10)) (.cse4 (not .cse32))) (let ((.cse34 (or .cse33 .cse3 .cse4)) (.cse36 (or .cse32 .cse54)) (.cse37 (or .cse10 .cse54)) (.cse21 (or .cse32 .cse53)) (.cse23 (or .cse53 .cse10)) (.cse24 (or .cse32 .cse48)) (.cse25 (forall ((v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int)) (v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (let ((.cse52 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304))) (let ((.cse50 (select .cse52 v_arrayElimCell_1092)) (.cse49 (select .cse52 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|)) (.cse51 (+ v_arrayElimCell_1093 4))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse49 .cse9)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse50 .cse51)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse50 .cse9)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse49 .cse51))))))) (.cse29 (or .cse48 .cse10)) (.cse6 (not .cse1)) (.cse5 (forall ((v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int))) (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse9)))) (.cse7 (not .cse11)) (.cse39 (and .cse14 .cse15)) (.cse38 (and .cse26 .cse27)) (.cse2 (forall ((v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int))) (let ((.cse47 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304))) (let ((.cse44 (select .cse47 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse44 .cse9)) (forall ((v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (let ((.cse45 (select .cse47 v_arrayElimCell_1092)) (.cse46 (+ v_arrayElimCell_1093 4))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse45 .cse46)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse45 .cse9)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse44 .cse46))))))))))) (let ((.cse0 (let ((.cse40 (forall ((v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int)) (v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (let ((.cse42 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304))) (let ((.cse41 (select .cse42 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|)) (.cse43 (+ v_arrayElimCell_1093 4))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse41 .cse9)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select .cse42 v_arrayElimCell_1092) .cse43)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse41 .cse43)))))))) (and .cse2 (or .cse32 .cse40) (or .cse10 .cse40)))) (.cse28 (or .cse38 .cse11)) (.cse13 (or .cse1 .cse39)) (.cse30 (or .cse6 .cse5 .cse7)) (.cse17 (or .cse39 .cse11)) (.cse31 (or .cse38 .cse1)) (.cse22 (and .cse21 .cse23 .cse24 .cse25 .cse29)) (.cse35 (and .cse34 .cse26 .cse21 .cse23 .cse36 .cse37))) (and (or .cse0 .cse1) .cse2 (or .cse3 .cse4 .cse5) (or .cse6 .cse7 (forall ((v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int)) (v_arrayElimCell_1093 Int)) (let ((.cse8 (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse8 .cse9)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse8 (+ v_arrayElimCell_1093 4))))))) (or .cse10 (let ((.cse16 (forall ((v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int))) (let ((.cse19 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select .cse19 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse9)) (forall ((v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (let ((.cse20 (select .cse19 v_arrayElimCell_1092))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse20 (+ v_arrayElimCell_1093 4))) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse20 .cse9)))))))))) (let ((.cse12 (and (forall ((v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int))) (let ((.cse18 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select .cse18 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse9)) (forall ((v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select .cse18 v_arrayElimCell_1092) (+ v_arrayElimCell_1093 4))))))) .cse16))) (and (or .cse11 .cse12) (or .cse11 (and .cse13 .cse14 .cse15)) .cse16 (or .cse1 .cse12) (or (and .cse17 .cse14 .cse15) .cse1))))) (or .cse1 (and .cse21 (or .cse11 .cse22) .cse23 .cse24 .cse25 (or .cse3 (and .cse26 .cse27 .cse28) .cse4) .cse29)) .cse30 (or .cse0 .cse11) (or .cse3 .cse4 (and .cse30 .cse31 .cse26 .cse27 .cse28)) (or .cse32 (and (or .cse1 .cse15) .cse33 (or .cse11 .cse15) .cse13 .cse30 .cse17)) (or .cse11 (and (or .cse3 .cse4 (and .cse31 .cse26 .cse27)) .cse21 .cse23 .cse24 .cse25 .cse29 (or .cse1 .cse22))) (or (and .cse34 .cse26 .cse21 .cse23 (or .cse1 .cse35) .cse36 .cse37) .cse11) (or (and .cse34 .cse26 .cse21 .cse23 .cse36 (or .cse11 .cse35) .cse37) .cse1)))))) is different from false [2022-11-03 01:56:35,801 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse33 (= |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|)) (.cse20 (= |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset| |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse16 (+ |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| 4)) (.cse17 (select |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (let ((.cse43 (forall ((v_ArrVal_2296 Int) (v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int)) (v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (let ((.cse65 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse17 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2296)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304)) (.cse66 (+ v_arrayElimCell_1093 4))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select .cse65 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse66)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select .cse65 v_arrayElimCell_1092) .cse66)))))) (.cse44 (forall ((v_ArrVal_2296 Int) (v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int)) (v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (let ((.cse63 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse17 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2296)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304))) (let ((.cse62 (select .cse63 v_arrayElimCell_1092)) (.cse64 (+ v_arrayElimCell_1093 4))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse62 .cse16)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select .cse63 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse64)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse62 .cse64))))))) (.cse24 (not .cse20)) (.cse25 (not .cse33)) (.cse34 (forall ((v_ArrVal_2296 Int) (v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int)) (v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (let ((.cse60 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse17 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2296)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304))) (let ((.cse61 (select .cse60 v_arrayElimCell_1092))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select .cse60 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse16)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse61 .cse16)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse61 (+ v_arrayElimCell_1093 4)))))))) (.cse10 (forall ((v_ArrVal_2296 Int) (v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int)) (v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse17 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2296)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304) v_arrayElimCell_1092) (+ v_arrayElimCell_1093 4))))) (.cse11 (forall ((v_ArrVal_2296 Int) (v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int)) (v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (let ((.cse59 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse17 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2296)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304) v_arrayElimCell_1092))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse59 .cse16)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse59 (+ v_arrayElimCell_1093 4))))))) (.cse2 (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|)) (.cse0 (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse8 (forall ((v_ArrVal_2296 Int) (v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int))) (let ((.cse58 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse17 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2296)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304))) (let ((.cse55 (select .cse58 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse55 .cse16)) (forall ((v_arrayElimCell_1092 Int)) (let ((.cse57 (select .cse58 v_arrayElimCell_1092))) (or (forall ((v_arrayElimCell_1093 Int)) (let ((.cse56 (+ v_arrayElimCell_1093 4))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse55 .cse56)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse57 .cse56))))) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse57 .cse16)))))))))) (.cse28 (forall ((v_ArrVal_2296 Int) (v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int))) (let ((.cse53 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse17 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2296)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select .cse53 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse16)) (forall ((v_arrayElimCell_1092 Int)) (let ((.cse54 (select .cse53 v_arrayElimCell_1092))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse54 .cse16)) (forall ((v_arrayElimCell_1093 Int)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse54 (+ v_arrayElimCell_1093 4)))))))))))) (let ((.cse35 (forall ((v_ArrVal_2296 Int) (v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int)) (v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (let ((.cse52 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse17 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2296)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304))) (let ((.cse49 (select .cse52 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|)) (.cse50 (select .cse52 v_arrayElimCell_1092)) (.cse51 (+ v_arrayElimCell_1093 4))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse49 .cse16)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse50 .cse16)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse49 .cse51)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse50 .cse51))))))) (.cse37 (and .cse8 .cse28)) (.cse22 (forall ((v_ArrVal_2296 Int) (v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int))) (let ((.cse48 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse17 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2296)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304))) (let ((.cse45 (select .cse48 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse45 .cse16)) (forall ((v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (let ((.cse46 (select .cse48 v_arrayElimCell_1092)) (.cse47 (+ v_arrayElimCell_1093 4))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse46 .cse16)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse45 .cse47)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse46 .cse47)))))))))) (.cse30 (not .cse0)) (.cse32 (not .cse2)) (.cse29 (forall ((v_ArrVal_2296 Int) (v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int))) (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse17 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2296)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse16)))) (.cse42 (and .cse10 .cse11)) (.cse1 (or .cse24 .cse25 .cse34)) (.cse4 (or .cse33 .cse44)) (.cse5 (or .cse33 .cse43)) (.cse6 (or .cse44 .cse20)) (.cse7 (or .cse43 .cse20))) (let ((.cse3 (and .cse1 .cse4 .cse5 .cse6 .cse7 .cse8)) (.cse9 (or .cse2 .cse42)) (.cse14 (or .cse0 .cse42)) (.cse23 (or .cse30 .cse32 .cse29)) (.cse21 (let ((.cse38 (forall ((v_ArrVal_2296 Int) (v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int)) (v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (let ((.cse41 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse17 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2296)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304))) (let ((.cse39 (select .cse41 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|)) (.cse40 (+ v_arrayElimCell_1093 4))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse39 .cse16)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse39 .cse40)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select .cse41 v_arrayElimCell_1092) .cse40)))))))) (and (or .cse33 .cse38) .cse22 (or .cse38 .cse20)))) (.cse27 (or .cse37 .cse0)) (.cse36 (and .cse35 .cse4 .cse5 .cse6 .cse7)) (.cse26 (or .cse37 .cse2))) (and (or .cse0 (and .cse1 (or .cse2 .cse3) .cse4 .cse5 .cse6 .cse7 .cse8)) (or (let ((.cse12 (forall ((v_ArrVal_2296 Int) (v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int))) (let ((.cse19 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse17 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2296)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304))) (or (forall ((v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (let ((.cse18 (select .cse19 v_arrayElimCell_1092))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse18 .cse16)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse18 (+ v_arrayElimCell_1093 4)))))) (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select .cse19 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse16))))))) (let ((.cse13 (and .cse12 (forall ((v_ArrVal_2296 Int) (v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int))) (let ((.cse15 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse17 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2296)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select .cse15 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse16)) (forall ((v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select .cse15 v_arrayElimCell_1092) (+ v_arrayElimCell_1093 4)))))))))) (and (or (and .cse9 .cse10 .cse11) .cse0) .cse12 (or .cse13 .cse2) (or (and .cse14 .cse10 .cse11) .cse2) (or .cse13 .cse0)))) .cse20) (or .cse0 .cse21) .cse22 (or .cse2 (and .cse1 .cse4 .cse5 .cse6 .cse7 .cse8 (or .cse0 .cse3))) .cse23 (or .cse24 .cse25 (and .cse26 .cse23 .cse27 .cse8 .cse28)) (or .cse24 .cse25 .cse29) (or .cse30 (forall ((v_ArrVal_2296 Int) (v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int)) (v_arrayElimCell_1093 Int)) (let ((.cse31 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse17 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2296)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_2304) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse31 .cse16)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse31 (+ v_arrayElimCell_1093 4)))))) .cse32) (or .cse33 (and .cse9 (or .cse0 .cse11) .cse14 (or .cse2 .cse11) .cse23 .cse34)) (or .cse2 .cse21) (or (and (or (and .cse27 .cse8 .cse28) .cse24 .cse25) .cse35 .cse4 .cse5 .cse6 .cse7 (or .cse0 .cse36)) .cse2) (or .cse0 (and .cse35 (or .cse2 .cse36) .cse4 .cse5 .cse6 (or .cse24 .cse25 (and .cse26 .cse8 .cse28)) .cse7))))))) is different from false [2022-11-03 01:56:58,742 WARN L234 SmtUtils]: Spent 16.96s on a formula simplification. DAG size of input: 134 DAG size of output: 118 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:57:12,217 WARN L234 SmtUtils]: Spent 11.12s on a formula simplification. DAG size of input: 112 DAG size of output: 112 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:57:26,374 WARN L234 SmtUtils]: Spent 5.81s on a formula simplification. DAG size of input: 118 DAG size of output: 114 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:57:33,882 WARN L234 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 113 DAG size of output: 105 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:57:39,914 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|)) (.cse41 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|))) (let ((.cse2 (select (select |c_#memory_$Pointer$.offset| .cse0) .cse41)) (.cse1 (select (select |c_#memory_$Pointer$.base| .cse0) .cse41))) (or (not (= .cse0 (select (select |c_#memory_$Pointer$.base| .cse1) .cse2))) (let ((.cse5 (+ |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| 4)) (.cse6 (select |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (let ((.cse15 (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|)) (.cse16 (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse13 (forall ((v_ArrVal_2296 Int) (v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int))) (let ((.cse40 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse6 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2296)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) .cse1 v_ArrVal_2304))) (or (forall ((v_arrayElimCell_1092 Int)) (let ((.cse39 (select .cse40 v_arrayElimCell_1092))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse39 .cse5)) (forall ((v_arrayElimCell_1093 Int)) (= (select .cse39 (+ v_arrayElimCell_1093 4)) |c_ULTIMATE.start_main_~uneq~0#1|))))) (= (select (select .cse40 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse5) |c_ULTIMATE.start_main_~uneq~0#1|))))) (.cse14 (forall ((v_ArrVal_2296 Int) (v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int))) (let ((.cse38 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse6 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2296)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) .cse1 v_ArrVal_2304))) (let ((.cse35 (select .cse38 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (or (forall ((v_arrayElimCell_1092 Int)) (let ((.cse37 (select .cse38 v_arrayElimCell_1092))) (or (forall ((v_arrayElimCell_1093 Int)) (let ((.cse36 (+ v_arrayElimCell_1093 4))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse35 .cse36)) (= (select .cse37 .cse36) |c_ULTIMATE.start_main_~uneq~0#1|)))) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse37 .cse5))))) (= (select .cse35 .cse5) |c_ULTIMATE.start_main_~uneq~0#1|))))))) (let ((.cse19 (= .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|)) (.cse25 (= .cse2 |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse32 (and .cse13 .cse14)) (.cse18 (forall ((v_ArrVal_2296 Int) (v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int)) (v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (let ((.cse33 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse6 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2296)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) .cse1 v_ArrVal_2304))) (let ((.cse34 (select .cse33 v_arrayElimCell_1092))) (or (= (select (select .cse33 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse5) |c_ULTIMATE.start_main_~uneq~0#1|) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse34 .cse5)) (= (select .cse34 (+ v_arrayElimCell_1093 4)) |c_ULTIMATE.start_main_~uneq~0#1|)))))) (.cse7 (not .cse16)) (.cse8 (not .cse15)) (.cse24 (forall ((v_ArrVal_2296 Int) (v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int))) (= (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse6 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2296)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) .cse1 v_ArrVal_2304) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse5) |c_ULTIMATE.start_main_~uneq~0#1|)))) (let ((.cse3 (or .cse7 .cse8 .cse24)) (.cse17 (and .cse18 .cse14)) (.cse11 (or .cse16 .cse32)) (.cse9 (not .cse25)) (.cse10 (not .cse19)) (.cse12 (or .cse15 .cse32))) (and .cse3 (or (forall ((v_ArrVal_2296 Int) (v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int)) (v_arrayElimCell_1093 Int)) (let ((.cse4 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse6 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2296)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) .cse1 v_ArrVal_2304) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (or (= (select .cse4 .cse5) |c_ULTIMATE.start_main_~uneq~0#1|) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse4 (+ v_arrayElimCell_1093 4)))))) .cse7 .cse8) (or .cse9 .cse10 (and .cse3 .cse11 .cse12 .cse13 .cse14)) (or .cse15 (and (or .cse16 .cse17) .cse18 .cse14)) (or .cse16 (and (or .cse15 .cse17) .cse18 .cse14)) (or .cse19 (and .cse16 .cse15 .cse18)) (or .cse15 (and .cse11 .cse14 (forall ((v_ArrVal_2296 Int) (v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int)) (v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (let ((.cse23 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse6 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2296)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) .cse1 v_ArrVal_2304))) (let ((.cse20 (select .cse23 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|)) (.cse22 (select .cse23 v_arrayElimCell_1092)) (.cse21 (+ v_arrayElimCell_1093 4))) (or (= (select .cse20 .cse5) |c_ULTIMATE.start_main_~uneq~0#1|) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse20 .cse21)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse22 .cse5)) (= (select .cse22 .cse21) |c_ULTIMATE.start_main_~uneq~0#1|))))))) (or .cse9 .cse10 .cse24) (or (and .cse12 .cse14) .cse16) (or .cse25 (and (forall ((v_ArrVal_2296 Int) (v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int))) (let ((.cse27 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse6 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2296)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) .cse1 v_ArrVal_2304))) (or (forall ((v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (let ((.cse26 (select .cse27 v_arrayElimCell_1092))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse26 .cse5)) (= (select .cse26 (+ v_arrayElimCell_1093 4)) |c_ULTIMATE.start_main_~uneq~0#1|)))) (= (select (select .cse27 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) .cse5) |c_ULTIMATE.start_main_~uneq~0#1|)))) .cse16 .cse15)) (forall ((v_ArrVal_2296 Int) (v_ArrVal_2304 (Array Int Int)) (v_ArrVal_2300 (Array Int Int))) (let ((.cse31 (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store .cse6 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_2296)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_2300) .cse1 v_ArrVal_2304))) (let ((.cse28 (select .cse31 |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) (or (forall ((v_arrayElimCell_1093 Int) (v_arrayElimCell_1092 Int)) (let ((.cse30 (select .cse31 v_arrayElimCell_1092)) (.cse29 (+ v_arrayElimCell_1093 4))) (or (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse28 .cse29)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select .cse30 .cse5)) (= (select .cse30 .cse29) |c_ULTIMATE.start_main_~uneq~0#1|)))) (= (select .cse28 .cse5) |c_ULTIMATE.start_main_~uneq~0#1|)))))))))) (and (= |c_ULTIMATE.start_sll_circular_prepend_#t~mem10#1.offset| 0) (= |c_ULTIMATE.start_sll_circular_prepend_#t~mem10#1.base| 0))))) is different from false [2022-11-03 01:57:51,748 WARN L234 SmtUtils]: Spent 6.80s on a formula simplification. DAG size of input: 108 DAG size of output: 104 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:57:57,542 WARN L234 SmtUtils]: Spent 5.27s on a formula simplification that was a NOOP. DAG size: 203 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 01:57:57,542 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:57:57,544 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 22 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 22 new quantified variables, introduced 44 case distinctions, treesize of input 4645 treesize of output 6307 [2022-11-03 01:58:02,222 INFO L244 Elim1Store]: Index analysis took 2948 ms [2022-11-03 01:58:07,022 INFO L356 Elim1Store]: treesize reduction 1464, result has 3.8 percent of original size [2022-11-03 01:58:07,024 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 21 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 69 case distinctions, treesize of input 7967 treesize of output 9506 [2022-11-03 01:58:08,074 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:58:08,076 INFO L390 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 7583 treesize of output 7566 [2022-11-03 01:58:09,213 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:58:09,215 INFO L390 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 7557 treesize of output 7514 [2022-11-03 01:58:21,550 INFO L244 Elim1Store]: Index analysis took 263 ms [2022-11-03 01:58:45,373 WARN L234 SmtUtils]: Spent 23.65s on a formula simplification. DAG size of input: 2305 DAG size of output: 202 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 01:58:45,374 INFO L356 Elim1Store]: treesize reduction 7030, result has 4.7 percent of original size [2022-11-03 01:58:45,378 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 15 stores, 17 select indices, 17 select index equivalence classes, 0 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 376 case distinctions, treesize of input 40194 treesize of output 40343 [2022-11-03 01:58:47,385 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:58:47,389 INFO L390 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 39727 treesize of output 39679 [2022-11-03 01:58:49,473 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:58:49,477 INFO L390 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 39666 treesize of output 39471 [2022-11-03 01:58:50,580 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:58:50,584 INFO L390 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 39462 treesize of output 39369 [2022-11-03 01:58:51,804 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:58:51,808 INFO L390 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 39360 treesize of output 39343 [2022-11-03 01:58:53,062 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:58:53,067 INFO L390 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 39341 treesize of output 39333 [2022-11-03 01:58:55,245 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:58:55,249 INFO L390 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 39320 treesize of output 39277 [2022-11-03 01:58:56,377 INFO L390 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 39268 treesize of output 39264 [2022-11-03 01:59:01,526 INFO L244 Elim1Store]: Index analysis took 247 ms [2022-11-03 01:59:07,494 WARN L234 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 801 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 01:59:07,495 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:59:07,498 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 20 select indices, 20 select index equivalence classes, 0 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 48145 treesize of output 49575 [2022-11-03 01:59:12,999 WARN L234 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 3409 DAG size of output: 3349 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-03 01:59:13,332 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:59:13,336 INFO L390 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 47716 treesize of output 47708 [2022-11-03 01:59:19,298 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:59:19,302 INFO L390 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 47695 treesize of output 47596 [2022-11-03 01:59:22,457 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:59:22,462 INFO L390 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 47594 treesize of output 47570 [2022-11-03 01:59:28,245 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:59:28,250 INFO L390 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 47557 treesize of output 47512 [2022-11-03 01:59:31,293 INFO L390 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 47510 treesize of output 47506 [2022-11-03 01:59:37,092 INFO L390 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 47501 treesize of output 47499 [2022-11-03 01:59:40,277 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:59:40,282 INFO L390 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 47506 treesize of output 47484 [2022-11-03 01:59:46,020 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:59:46,024 INFO L390 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 47471 treesize of output 47376 [2022-11-03 01:59:48,954 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:59:48,957 INFO L390 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 47367 treesize of output 47324 [2022-11-03 01:59:52,082 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:59:52,086 INFO L390 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 47315 treesize of output 47304 [2022-11-03 01:59:55,115 INFO L390 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 47302 treesize of output 47296 [2022-11-03 02:00:01,142 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:00:01,147 INFO L390 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 47291 treesize of output 47200 [2022-11-03 02:00:04,184 INFO L390 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 47191 treesize of output 47187 [2022-11-03 02:00:07,338 INFO L390 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 47187 treesize of output 47179 [2022-11-03 02:00:10,754 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:00:10,758 INFO L390 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 47179 treesize of output 47178 [2022-11-03 02:00:14,114 INFO L390 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 47176 treesize of output 47172 [2022-11-03 02:00:20,588 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:00:20,592 INFO L390 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 47167 treesize of output 47056 [2022-11-03 02:00:24,057 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:00:24,061 INFO L390 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 47047 treesize of output 46856 [2022-11-03 02:00:27,560 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:00:27,565 INFO L390 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 46847 treesize of output 46756 [2022-11-03 02:00:31,157 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:00:31,162 INFO L390 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 46754 treesize of output 46708 [2022-11-03 02:00:37,870 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:00:37,875 INFO L390 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 46695 treesize of output 46672 [2022-11-03 02:00:41,413 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:00:41,417 INFO L390 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 46670 treesize of output 46666 [2022-11-03 02:00:48,098 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:00:48,102 INFO L390 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 46653 treesize of output 46638 [2022-11-03 02:00:51,665 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:00:51,669 INFO L390 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 46629 treesize of output 46590 [2022-11-03 02:00:55,318 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:00:55,322 INFO L390 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 46581 treesize of output 46518 [2022-11-03 02:00:58,932 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:00:58,937 INFO L390 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 46509 treesize of output 46482 [2022-11-03 02:01:02,550 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:01:02,554 INFO L390 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 46480 treesize of output 46462 [2022-11-03 02:01:09,190 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:01:09,194 INFO L390 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 46449 treesize of output 46442 [2022-11-03 02:01:12,990 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:01:12,994 INFO L390 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 46433 treesize of output 46238 [2022-11-03 02:01:16,838 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:01:16,842 INFO L390 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 46236 treesize of output 46216 [2022-11-03 02:01:23,677 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:01:23,681 INFO L390 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 46203 treesize of output 46112 [2022-11-03 02:01:27,439 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:01:27,444 INFO L390 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 46103 treesize of output 46062 [2022-11-03 02:01:31,203 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:01:31,207 INFO L390 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 46053 treesize of output 46008 [2022-11-03 02:01:34,958 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:01:34,962 INFO L390 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 45999 treesize of output 45900 [2022-11-03 02:01:38,560 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:01:38,564 INFO L390 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 45898 treesize of output 45874 [2022-11-03 02:01:45,242 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:01:45,247 INFO L390 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 45861 treesize of output 45850 [2022-11-03 02:01:49,079 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:01:49,084 INFO L390 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 45848 treesize of output 45800 [2022-11-03 02:01:55,907 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:01:55,910 INFO L390 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 45787 treesize of output 45694 [2022-11-03 02:01:59,574 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:01:59,578 INFO L390 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 45685 treesize of output 45676 [2022-11-03 02:02:03,432 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:02:03,435 INFO L390 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 45674 treesize of output 45668 [2022-11-03 02:02:10,515 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:02:10,519 INFO L390 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 45655 treesize of output 45628 [2022-11-03 02:02:14,533 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:02:14,537 INFO L390 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 45619 treesize of output 45568 [2022-11-03 02:02:18,477 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:02:18,481 INFO L390 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 45566 treesize of output 45554 [2022-11-03 02:02:25,404 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:02:25,407 INFO L390 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 45541 treesize of output 45520 [2022-11-03 02:02:29,587 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:02:29,592 INFO L390 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 45511 treesize of output 45510 [2022-11-03 02:02:33,941 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:02:33,945 INFO L390 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 45501 treesize of output 45460 [2022-11-03 02:02:37,924 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:02:37,929 INFO L390 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 45458 treesize of output 45438 [2022-11-03 02:02:45,210 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:02:45,217 INFO L390 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 45425 treesize of output 45218 [2022-11-03 02:02:49,552 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:02:49,557 INFO L390 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 45209 treesize of output 45110 [2022-11-03 02:02:53,611 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:02:53,615 INFO L390 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 45108 treesize of output 45054 [2022-11-03 02:03:01,125 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:03:01,129 INFO L390 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 45041 treesize of output 44990 [2022-11-03 02:03:05,644 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:03:05,649 INFO L390 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 44988 treesize of output 44958 [2022-11-03 02:03:13,393 INFO L390 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 44945 treesize of output 44941 [2022-11-03 02:03:16,793 INFO L390 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 44941 treesize of output 44939