./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/dll2n_prepend_equal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2n_prepend_equal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 46bbe683d8965e9a855fbd780578b958a816bbdd25bc1fa0d6151e1b826f8669 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:29:03,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:29:03,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:29:03,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:29:03,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:29:03,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:29:03,920 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:29:03,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:29:03,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:29:03,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:29:03,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:29:03,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:29:03,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:29:03,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:29:03,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:29:03,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:29:03,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:29:03,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:29:03,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:29:03,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:29:03,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:29:03,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:29:03,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:29:03,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:29:03,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:29:03,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:29:03,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:29:03,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:29:03,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:29:03,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:29:03,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:29:03,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:29:03,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:29:04,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:29:04,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:29:04,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:29:04,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:29:04,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:29:04,005 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:29:04,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:29:04,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:29:04,007 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-25 19:29:04,069 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:29:04,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:29:04,070 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:29:04,070 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:29:04,071 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:29:04,072 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:29:04,072 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:29:04,072 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:29:04,072 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:29:04,073 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:29:04,074 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:29:04,074 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:29:04,074 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:29:04,075 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:29:04,075 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:29:04,075 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:29:04,075 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:29:04,076 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:29:04,076 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 19:29:04,076 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 19:29:04,077 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:29:04,077 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 19:29:04,077 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 19:29:04,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:29:04,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 19:29:04,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:29:04,080 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-25 19:29:04,081 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-25 19:29:04,081 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-25 19:29:04,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:29:04,081 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-25 19:29:04,082 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 19:29:04,082 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:29:04,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:29:04,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:29:04,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:29:04,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:29:04,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:29:04,083 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:29:04,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:29:04,084 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:29:04,084 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:29:04,084 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46bbe683d8965e9a855fbd780578b958a816bbdd25bc1fa0d6151e1b826f8669 [2021-11-25 19:29:04,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:29:04,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:29:04,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:29:04,444 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:29:04,445 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:29:04,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/list-simple/dll2n_prepend_equal.i [2021-11-25 19:29:04,556 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/data/c18d5eee6/3447ddce6acb4a3185beb88cba176cb7/FLAG2eb6c538b [2021-11-25 19:29:05,295 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:29:05,296 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/sv-benchmarks/c/list-simple/dll2n_prepend_equal.i [2021-11-25 19:29:05,319 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/data/c18d5eee6/3447ddce6acb4a3185beb88cba176cb7/FLAG2eb6c538b [2021-11-25 19:29:05,547 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/data/c18d5eee6/3447ddce6acb4a3185beb88cba176cb7 [2021-11-25 19:29:05,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:29:05,554 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:29:05,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:29:05,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:29:05,571 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:29:05,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:29:05" (1/1) ... [2021-11-25 19:29:05,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70ef6cfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:29:05, skipping insertion in model container [2021-11-25 19:29:05,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:29:05" (1/1) ... [2021-11-25 19:29:05,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:29:05,628 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:29:06,064 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_480bffb1-04bf-4bea-9422-a8f513e91169/sv-benchmarks/c/list-simple/dll2n_prepend_equal.i[24361,24374] [2021-11-25 19:29:06,071 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:29:06,086 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:29:06,168 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_480bffb1-04bf-4bea-9422-a8f513e91169/sv-benchmarks/c/list-simple/dll2n_prepend_equal.i[24361,24374] [2021-11-25 19:29:06,174 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:29:06,222 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:29:06,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:29:06 WrapperNode [2021-11-25 19:29:06,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:29:06,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:29:06,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:29:06,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:29:06,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:29:06" (1/1) ... [2021-11-25 19:29:06,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:29:06" (1/1) ... [2021-11-25 19:29:06,306 INFO L137 Inliner]: procedures = 127, calls = 38, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 117 [2021-11-25 19:29:06,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:29:06,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:29:06,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:29:06,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:29:06,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:29:06" (1/1) ... [2021-11-25 19:29:06,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:29:06" (1/1) ... [2021-11-25 19:29:06,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:29:06" (1/1) ... [2021-11-25 19:29:06,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:29:06" (1/1) ... [2021-11-25 19:29:06,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:29:06" (1/1) ... [2021-11-25 19:29:06,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:29:06" (1/1) ... [2021-11-25 19:29:06,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:29:06" (1/1) ... [2021-11-25 19:29:06,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:29:06,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:29:06,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:29:06,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:29:06,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:29:06" (1/1) ... [2021-11-25 19:29:06,361 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:29:06,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:29:06,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:29:06,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:29:06,422 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-11-25 19:29:06,423 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-11-25 19:29:06,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:29:06,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:29:06,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:29:06,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:29:06,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:29:06,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:29:06,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:29:06,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:29:06,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 19:29:06,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:29:06,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:29:06,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:29:06,566 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:29:06,568 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:29:06,630 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2021-11-25 19:29:07,143 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:29:07,203 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:29:07,203 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-25 19:29:07,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:29:07 BoogieIcfgContainer [2021-11-25 19:29:07,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:29:07,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:29:07,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:29:07,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:29:07,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:29:05" (1/3) ... [2021-11-25 19:29:07,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f80f42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:29:07, skipping insertion in model container [2021-11-25 19:29:07,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:29:06" (2/3) ... [2021-11-25 19:29:07,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f80f42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:29:07, skipping insertion in model container [2021-11-25 19:29:07,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:29:07" (3/3) ... [2021-11-25 19:29:07,220 INFO L111 eAbstractionObserver]: Analyzing ICFG dll2n_prepend_equal.i [2021-11-25 19:29:07,227 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:29:07,228 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2021-11-25 19:29:07,329 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:29:07,343 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:29:07,343 INFO L340 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2021-11-25 19:29:07,367 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 36 states have (on average 2.388888888888889) internal successors, (86), 78 states have internal predecessors, (86), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:07,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 19:29:07,386 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:29:07,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-25 19:29:07,388 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:29:07,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:29:07,394 INFO L85 PathProgramCache]: Analyzing trace with hash 6153029, now seen corresponding path program 1 times [2021-11-25 19:29:07,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:29:07,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984744298] [2021-11-25 19:29:07,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:07,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:29:07,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:07,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:29:07,658 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:29:07,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984744298] [2021-11-25 19:29:07,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984744298] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:29:07,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:29:07,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:29:07,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181397946] [2021-11-25 19:29:07,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:29:07,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:29:07,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:29:07,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:29:07,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:29:07,718 INFO L87 Difference]: Start difference. First operand has 80 states, 36 states have (on average 2.388888888888889) internal successors, (86), 78 states have internal predecessors, (86), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:08,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:29:08,014 INFO L93 Difference]: Finished difference Result 135 states and 148 transitions. [2021-11-25 19:29:08,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:29:08,017 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-25 19:29:08,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:29:08,032 INFO L225 Difference]: With dead ends: 135 [2021-11-25 19:29:08,032 INFO L226 Difference]: Without dead ends: 129 [2021-11-25 19:29:08,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:29:08,043 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 72 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:29:08,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 122 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 19:29:08,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-25 19:29:08,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 72. [2021-11-25 19:29:08,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 34 states have (on average 2.264705882352941) internal successors, (77), 71 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:08,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 77 transitions. [2021-11-25 19:29:08,104 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 77 transitions. Word has length 4 [2021-11-25 19:29:08,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:29:08,104 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 77 transitions. [2021-11-25 19:29:08,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:08,105 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 77 transitions. [2021-11-25 19:29:08,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 19:29:08,106 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:29:08,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-25 19:29:08,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:29:08,107 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:29:08,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:29:08,111 INFO L85 PathProgramCache]: Analyzing trace with hash 6153030, now seen corresponding path program 1 times [2021-11-25 19:29:08,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:29:08,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231117054] [2021-11-25 19:29:08,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:08,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:29:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:08,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:29:08,232 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:29:08,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231117054] [2021-11-25 19:29:08,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231117054] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:29:08,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:29:08,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:29:08,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312426032] [2021-11-25 19:29:08,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:29:08,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:29:08,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:29:08,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:29:08,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:29:08,239 INFO L87 Difference]: Start difference. First operand 72 states and 77 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:08,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:29:08,420 INFO L93 Difference]: Finished difference Result 128 states and 137 transitions. [2021-11-25 19:29:08,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:29:08,421 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-25 19:29:08,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:29:08,422 INFO L225 Difference]: With dead ends: 128 [2021-11-25 19:29:08,423 INFO L226 Difference]: Without dead ends: 128 [2021-11-25 19:29:08,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:29:08,425 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 70 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:29:08,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 117 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:29:08,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-25 19:29:08,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 69. [2021-11-25 19:29:08,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 34 states have (on average 2.176470588235294) internal successors, (74), 68 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:08,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2021-11-25 19:29:08,435 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 4 [2021-11-25 19:29:08,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:29:08,436 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2021-11-25 19:29:08,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:08,436 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2021-11-25 19:29:08,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 19:29:08,437 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:29:08,437 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-25 19:29:08,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:29:08,438 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:29:08,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:29:08,439 INFO L85 PathProgramCache]: Analyzing trace with hash 6311657, now seen corresponding path program 1 times [2021-11-25 19:29:08,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:29:08,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200400838] [2021-11-25 19:29:08,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:08,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:29:08,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:08,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:29:08,480 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:29:08,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200400838] [2021-11-25 19:29:08,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200400838] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:29:08,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:29:08,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:29:08,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096952226] [2021-11-25 19:29:08,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:29:08,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:29:08,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:29:08,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:29:08,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:29:08,487 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:08,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:29:08,528 INFO L93 Difference]: Finished difference Result 79 states and 85 transitions. [2021-11-25 19:29:08,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:29:08,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-25 19:29:08,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:29:08,530 INFO L225 Difference]: With dead ends: 79 [2021-11-25 19:29:08,531 INFO L226 Difference]: Without dead ends: 79 [2021-11-25 19:29:08,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:29:08,540 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 10 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:29:08,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 120 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:29:08,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-25 19:29:08,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 70. [2021-11-25 19:29:08,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 35 states have (on average 2.142857142857143) internal successors, (75), 69 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:08,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 75 transitions. [2021-11-25 19:29:08,555 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 75 transitions. Word has length 4 [2021-11-25 19:29:08,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:29:08,556 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 75 transitions. [2021-11-25 19:29:08,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:08,556 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 75 transitions. [2021-11-25 19:29:08,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 19:29:08,557 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:29:08,557 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:29:08,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 19:29:08,558 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:29:08,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:29:08,559 INFO L85 PathProgramCache]: Analyzing trace with hash 209673289, now seen corresponding path program 1 times [2021-11-25 19:29:08,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:29:08,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749978567] [2021-11-25 19:29:08,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:08,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:29:08,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:08,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:29:08,689 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:29:08,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749978567] [2021-11-25 19:29:08,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749978567] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:29:08,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:29:08,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:29:08,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496933741] [2021-11-25 19:29:08,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:29:08,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:29:08,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:29:08,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:29:08,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:29:08,693 INFO L87 Difference]: Start difference. First operand 70 states and 75 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:08,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:29:08,764 INFO L93 Difference]: Finished difference Result 76 states and 81 transitions. [2021-11-25 19:29:08,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:29:08,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-25 19:29:08,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:29:08,766 INFO L225 Difference]: With dead ends: 76 [2021-11-25 19:29:08,768 INFO L226 Difference]: Without dead ends: 76 [2021-11-25 19:29:08,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:29:08,770 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 1 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:29:08,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 115 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:29:08,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-11-25 19:29:08,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 75. [2021-11-25 19:29:08,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 40 states have (on average 2.0) internal successors, (80), 74 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:08,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2021-11-25 19:29:08,788 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 8 [2021-11-25 19:29:08,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:29:08,789 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2021-11-25 19:29:08,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:08,790 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2021-11-25 19:29:08,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 19:29:08,790 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:29:08,791 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:29:08,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 19:29:08,791 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:29:08,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:29:08,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1499445486, now seen corresponding path program 1 times [2021-11-25 19:29:08,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:29:08,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963550357] [2021-11-25 19:29:08,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:08,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:29:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:08,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:29:08,907 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:29:08,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963550357] [2021-11-25 19:29:08,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963550357] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:29:08,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137982077] [2021-11-25 19:29:08,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:08,908 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:29:08,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:29:08,911 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:29:08,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 19:29:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:09,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 19:29:09,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:29:09,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:29:09,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:29:09,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:29:09,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137982077] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:29:09,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1339574410] [2021-11-25 19:29:09,200 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2021-11-25 19:29:09,201 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:29:09,207 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:29:09,213 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:29:09,214 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:29:09,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:09,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:09,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 19:29:09,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:09,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:09,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:09,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:09,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:09,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 19:29:09,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:29:09,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-25 19:29:09,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:09,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 19:29:09,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:29:09,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:09,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:09,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 19:29:09,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:29:09,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:09,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:29:09,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:09,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:09,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 19:29:09,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:09,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:29:09,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:09,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:09,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:09,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:09,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:09,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:09,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:09,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:09,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:09,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2021-11-25 19:29:10,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 19:29:10,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 19:29:10,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 19:29:10,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 19:29:10,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:29:10,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 19:29:10,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,540 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:10,542 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:10,555 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 19:29:10,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 395 treesize of output 376 [2021-11-25 19:29:10,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,603 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:10,605 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:10,634 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 19:29:10,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 389 treesize of output 388 [2021-11-25 19:29:10,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,699 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:10,702 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:10,725 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 19:29:10,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 389 treesize of output 388 [2021-11-25 19:29:10,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:10,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2021-11-25 19:29:11,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:11,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:11,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 19:29:11,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:11,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:11,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 19:29:11,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:11,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:11,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:11,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 19:29:11,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:11,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:11,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:11,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:11,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:29:11,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:11,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:11,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 19:29:11,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:11,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:11,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 19:29:11,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:11,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:11,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:11,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:11,422 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:11,424 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:11,434 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 19:29:11,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 395 treesize of output 376 [2021-11-25 19:29:11,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:11,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:11,465 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:11,467 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:11,494 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 19:29:11,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 389 treesize of output 388 [2021-11-25 19:29:11,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:11,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:11,524 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:11,525 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:11,551 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 19:29:11,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 389 treesize of output 388 [2021-11-25 19:29:12,061 INFO L354 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2021-11-25 19:29:12,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 313 treesize of output 320 [2021-11-25 19:29:12,973 INFO L354 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2021-11-25 19:29:12,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 513 treesize of output 502 [2021-11-25 19:29:13,050 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-25 19:29:13,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 517 treesize of output 508 [2021-11-25 19:29:13,117 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-25 19:29:13,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 517 treesize of output 508 [2021-11-25 19:29:13,245 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:29:16,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1339574410] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:29:16,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-25 19:29:16,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3, 3] total 10 [2021-11-25 19:29:16,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460770626] [2021-11-25 19:29:16,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:29:16,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:29:16,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:29:16,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:29:16,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-25 19:29:16,694 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:17,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:29:17,662 INFO L93 Difference]: Finished difference Result 86 states and 92 transitions. [2021-11-25 19:29:17,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 19:29:17,663 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-25 19:29:17,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:29:17,664 INFO L225 Difference]: With dead ends: 86 [2021-11-25 19:29:17,664 INFO L226 Difference]: Without dead ends: 86 [2021-11-25 19:29:17,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-11-25 19:29:17,665 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 11 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:29:17,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 109 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 19:29:17,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-25 19:29:17,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 82. [2021-11-25 19:29:17,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 47 states have (on average 1.872340425531915) internal successors, (88), 81 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:17,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2021-11-25 19:29:17,673 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 11 [2021-11-25 19:29:17,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:29:17,673 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2021-11-25 19:29:17,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:17,674 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2021-11-25 19:29:17,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 19:29:17,675 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:29:17,675 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-11-25 19:29:17,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 19:29:17,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:29:17,901 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:29:17,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:29:17,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1543488562, now seen corresponding path program 1 times [2021-11-25 19:29:17,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:29:17,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365105563] [2021-11-25 19:29:17,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:17,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:29:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:18,072 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:29:18,072 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:29:18,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365105563] [2021-11-25 19:29:18,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365105563] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:29:18,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828770225] [2021-11-25 19:29:18,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:18,073 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:29:18,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:29:18,082 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:29:18,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 19:29:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:18,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 19:29:18,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:29:18,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 19:29:18,254 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 19:29:18,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-25 19:29:18,273 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:29:18,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:29:18,433 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:29:18,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828770225] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:29:18,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [638763617] [2021-11-25 19:29:18,436 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-25 19:29:18,436 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:29:18,437 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:29:18,437 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:29:18,437 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:29:18,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 19:29:18,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 19:29:18,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 19:29:18,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:29:18,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-25 19:29:18,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 19:29:18,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:29:18,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:29:18,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:29:18,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:29:18,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 19:29:18,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2021-11-25 19:29:18,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 19:29:18,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 19:29:18,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 19:29:18,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:18,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 19:29:19,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 19:29:19,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:29:19,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,170 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:19,179 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 19:29:19,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 387 treesize of output 368 [2021-11-25 19:29:19,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,201 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:19,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,204 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:19,225 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-25 19:29:19,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 381 treesize of output 380 [2021-11-25 19:29:19,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,247 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:19,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,250 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:19,269 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-25 19:29:19,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 381 treesize of output 380 [2021-11-25 19:29:19,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2021-11-25 19:29:19,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 19:29:19,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 19:29:19,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 19:29:19,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:29:19,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 19:29:19,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 19:29:19,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,778 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:19,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,781 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:19,803 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-25 19:29:19,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 381 treesize of output 380 [2021-11-25 19:29:19,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,829 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:19,838 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 19:29:19,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 387 treesize of output 368 [2021-11-25 19:29:19,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,858 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:19,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:19,860 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:19,879 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-25 19:29:19,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 381 treesize of output 380 [2021-11-25 19:29:20,296 INFO L354 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2021-11-25 19:29:20,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 310 treesize of output 317 [2021-11-25 19:29:21,156 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-25 19:29:21,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 723 treesize of output 700 [2021-11-25 19:29:21,182 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:29:21,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 727 treesize of output 710 [2021-11-25 19:29:21,204 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:29:21,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 727 treesize of output 710 [2021-11-25 19:29:21,344 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:29:24,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [638763617] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:29:24,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-25 19:29:24,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 3, 4] total 13 [2021-11-25 19:29:24,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605330513] [2021-11-25 19:29:24,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:29:24,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 19:29:24,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:29:24,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 19:29:24,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-11-25 19:29:24,934 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:25,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:29:25,994 INFO L93 Difference]: Finished difference Result 84 states and 90 transitions. [2021-11-25 19:29:25,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 19:29:25,995 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-25 19:29:25,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:29:25,996 INFO L225 Difference]: With dead ends: 84 [2021-11-25 19:29:25,996 INFO L226 Difference]: Without dead ends: 84 [2021-11-25 19:29:25,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-11-25 19:29:25,997 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 5 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:29:25,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 119 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 19:29:25,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-11-25 19:29:26,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 83. [2021-11-25 19:29:26,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 48 states have (on average 1.8541666666666667) internal successors, (89), 82 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:26,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions. [2021-11-25 19:29:26,005 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 15 [2021-11-25 19:29:26,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:29:26,006 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 89 transitions. [2021-11-25 19:29:26,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:26,006 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 89 transitions. [2021-11-25 19:29:26,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-25 19:29:26,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:29:26,007 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:29:26,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 19:29:26,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:29:26,229 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:29:26,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:29:26,230 INFO L85 PathProgramCache]: Analyzing trace with hash -288796838, now seen corresponding path program 1 times [2021-11-25 19:29:26,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:29:26,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803702523] [2021-11-25 19:29:26,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:26,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:29:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:26,324 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:29:26,324 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:29:26,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803702523] [2021-11-25 19:29:26,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803702523] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:29:26,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:29:26,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:29:26,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449494886] [2021-11-25 19:29:26,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:29:26,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:29:26,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:29:26,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:29:26,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:29:26,327 INFO L87 Difference]: Start difference. First operand 83 states and 89 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:26,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:29:26,385 INFO L93 Difference]: Finished difference Result 90 states and 97 transitions. [2021-11-25 19:29:26,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:29:26,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-25 19:29:26,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:29:26,386 INFO L225 Difference]: With dead ends: 90 [2021-11-25 19:29:26,386 INFO L226 Difference]: Without dead ends: 90 [2021-11-25 19:29:26,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:29:26,387 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 54 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:29:26,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 47 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:29:26,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-25 19:29:26,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 80. [2021-11-25 19:29:26,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 48 states have (on average 1.7916666666666667) internal successors, (86), 79 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:26,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 86 transitions. [2021-11-25 19:29:26,395 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 86 transitions. Word has length 19 [2021-11-25 19:29:26,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:29:26,395 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 86 transitions. [2021-11-25 19:29:26,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:26,396 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 86 transitions. [2021-11-25 19:29:26,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-25 19:29:26,396 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:29:26,397 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:29:26,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 19:29:26,397 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:29:26,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:29:26,397 INFO L85 PathProgramCache]: Analyzing trace with hash -288796837, now seen corresponding path program 1 times [2021-11-25 19:29:26,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:29:26,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703128330] [2021-11-25 19:29:26,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:26,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:29:26,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:26,462 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:29:26,463 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:29:26,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703128330] [2021-11-25 19:29:26,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703128330] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:29:26,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:29:26,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:29:26,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175522261] [2021-11-25 19:29:26,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:29:26,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:29:26,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:29:26,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:29:26,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:29:26,465 INFO L87 Difference]: Start difference. First operand 80 states and 86 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:26,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:29:26,527 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2021-11-25 19:29:26,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:29:26,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-25 19:29:26,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:29:26,529 INFO L225 Difference]: With dead ends: 77 [2021-11-25 19:29:26,529 INFO L226 Difference]: Without dead ends: 77 [2021-11-25 19:29:26,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:29:26,531 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 54 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:29:26,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 43 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:29:26,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-11-25 19:29:26,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-11-25 19:29:26,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 48 states have (on average 1.7291666666666667) internal successors, (83), 76 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:26,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 83 transitions. [2021-11-25 19:29:26,542 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 83 transitions. Word has length 19 [2021-11-25 19:29:26,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:29:26,543 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 83 transitions. [2021-11-25 19:29:26,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:26,544 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 83 transitions. [2021-11-25 19:29:26,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-25 19:29:26,545 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:29:26,546 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:29:26,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 19:29:26,546 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:29:26,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:29:26,547 INFO L85 PathProgramCache]: Analyzing trace with hash -727074723, now seen corresponding path program 1 times [2021-11-25 19:29:26,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:29:26,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461849629] [2021-11-25 19:29:26,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:26,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:29:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:26,768 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 19:29:26,768 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:29:26,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461849629] [2021-11-25 19:29:26,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461849629] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:29:26,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234378738] [2021-11-25 19:29:26,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:26,769 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:29:26,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:29:26,773 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:29:26,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 19:29:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:26,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-25 19:29:26,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:29:26,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 19:29:26,959 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 19:29:26,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2021-11-25 19:29:27,082 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 19:29:27,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2021-11-25 19:29:27,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:27,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 19:29:27,353 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 19:29:27,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:29:30,136 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 19:29:30,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234378738] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:29:30,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [145838507] [2021-11-25 19:29:30,139 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2021-11-25 19:29:30,139 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:29:30,140 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:29:30,140 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:29:30,140 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:29:30,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 19:29:30,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 19:29:30,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 19:29:30,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:29:30,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:29:30,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 19:29:30,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:29:30,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:29:30,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:29:30,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 19:29:30,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:29:30,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2021-11-25 19:29:30,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 19:29:30,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 19:29:30,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 19:29:30,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 19:29:30,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:29:30,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 19:29:30,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-25 19:29:30,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:29:30,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-25 19:29:30,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:29:30,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,906 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:30,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-25 19:29:30,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:30,937 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:30,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-25 19:29:31,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2021-11-25 19:29:31,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 19:29:31,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 19:29:31,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 19:29:31,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:29:31,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 19:29:31,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 19:29:31,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:29:31,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 19:29:31,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 19:29:31,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 19:29:31,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:29:31,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:31,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 19:29:32,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 19:29:32,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 19:29:32,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 19:29:32,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:32,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 19:29:32,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:32,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 19:29:32,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:32,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:32,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:32,385 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:29:32,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-25 19:29:32,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:32,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:32,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:32,413 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:29:32,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-25 19:29:32,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 19:29:32,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:32,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:32,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:32,498 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:32,514 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-25 19:29:32,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-25 19:29:32,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:32,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:32,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:32,544 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:32,561 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-25 19:29:32,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-25 19:29:32,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 19:29:32,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 19:29:32,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 19:29:32,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:29:32,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:29:32,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 19:29:32,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:29:32,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:29:32,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:32,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:32,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:32,821 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:32,829 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:29:32,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 230 treesize of output 216 [2021-11-25 19:29:32,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:32,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:32,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:32,927 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:32,934 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:29:32,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 230 treesize of output 216 [2021-11-25 19:29:32,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:32,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:29:33,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:33,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:29:33,058 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:29:37,038 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1778#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (= |ULTIMATE.start_node_create_~data#1| |ULTIMATE.start_node_create_#in~data#1|) (= (select (select |#memory_int| |ULTIMATE.start_node_create_~temp~0#1.base|) |ULTIMATE.start_node_create_~temp~0#1.offset|) |ULTIMATE.start_node_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (= |ULTIMATE.start_dll_create_~head~0#1.offset| |ULTIMATE.start_dll_create_#res#1.offset|) (= (select |#valid| |ULTIMATE.start_node_create_~temp~0#1.base|) 1) (= |ULTIMATE.start_dll_prepend_#in~head#1.offset| |ULTIMATE.start_dll_prepend_~head#1.offset|) (= |ULTIMATE.start_dll_prepend_~new_head~1#1.offset| |ULTIMATE.start_node_create_#res#1.offset|) (= |ULTIMATE.start_main_~data~0#1| |ULTIMATE.start_dll_prepend_#in~data#1|) (= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) (= |ULTIMATE.start_node_create_~temp~0#1.offset| |ULTIMATE.start_node_create_#res#1.offset|) (= |ULTIMATE.start_dll_prepend_#in~head#1.base| |ULTIMATE.start_dll_prepend_~head#1.base|) (= 12 (select |#length| |ULTIMATE.start_node_create_~temp~0#1.base|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_node_create_~temp~0#1.base|) (+ |ULTIMATE.start_node_create_~temp~0#1.offset| 4)) 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_node_create_~temp~0#1.base|) (+ |ULTIMATE.start_node_create_~temp~0#1.offset| 8)) 0) (= |ULTIMATE.start_dll_prepend_#in~data#1| |ULTIMATE.start_dll_prepend_~data#1|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_create_#res#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= |ULTIMATE.start_dll_create_~head~0#1.base| |ULTIMATE.start_dll_create_#res#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_dll_create_#res#1.offset|) (= |ULTIMATE.start_node_create_#in~data#1| |ULTIMATE.start_dll_prepend_~data#1|) (= |ULTIMATE.start_node_create_#res#1.base| |ULTIMATE.start_node_create_~temp~0#1.base|) (= |ULTIMATE.start_dll_prepend_#in~head#1.offset| |ULTIMATE.start_main_~#s~0#1.offset|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_node_create_~temp~0#1.base|) (+ |ULTIMATE.start_node_create_~temp~0#1.offset| 4)) 0) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (< |ULTIMATE.start_node_create_~temp~0#1.base| |#StackHeapBarrier|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_node_create_~temp~0#1.base|) (+ |ULTIMATE.start_node_create_~temp~0#1.offset| 8)) 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= |ULTIMATE.start_dll_prepend_#in~head#1.base| |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |#StackHeapBarrier|) (not (= (select |#valid| |ULTIMATE.start_dll_prepend_~head#1.base|) 1)) (= |ULTIMATE.start_dll_prepend_~new_head~1#1.base| |ULTIMATE.start_node_create_#res#1.base|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (not (= |ULTIMATE.start_node_create_~temp~0#1.base| 0)) (= |#NULL.base| 0))' at error location [2021-11-25 19:29:37,038 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:29:37,038 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 19:29:37,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2021-11-25 19:29:37,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031629173] [2021-11-25 19:29:37,039 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 19:29:37,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-25 19:29:37,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:29:37,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-25 19:29:37,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=576, Unknown=1, NotChecked=0, Total=702 [2021-11-25 19:29:37,045 INFO L87 Difference]: Start difference. First operand 77 states and 83 transitions. Second operand has 15 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:37,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:29:37,164 INFO L93 Difference]: Finished difference Result 81 states and 88 transitions. [2021-11-25 19:29:37,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:29:37,165 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-25 19:29:37,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:29:37,166 INFO L225 Difference]: With dead ends: 81 [2021-11-25 19:29:37,166 INFO L226 Difference]: Without dead ends: 81 [2021-11-25 19:29:37,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 39 SyntacticMatches, 8 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=131, Invalid=624, Unknown=1, NotChecked=0, Total=756 [2021-11-25 19:29:37,167 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 156 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 93 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:29:37,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 95 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 69 Invalid, 0 Unknown, 93 Unchecked, 0.1s Time] [2021-11-25 19:29:37,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-11-25 19:29:37,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 71. [2021-11-25 19:29:37,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 48 states have (on average 1.6041666666666667) internal successors, (77), 70 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:37,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 77 transitions. [2021-11-25 19:29:37,181 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 77 transitions. Word has length 22 [2021-11-25 19:29:37,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:29:37,181 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 77 transitions. [2021-11-25 19:29:37,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:37,182 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 77 transitions. [2021-11-25 19:29:37,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-25 19:29:37,183 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:29:37,183 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:29:37,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 19:29:37,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:29:37,399 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:29:37,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:29:37,399 INFO L85 PathProgramCache]: Analyzing trace with hash -727074722, now seen corresponding path program 1 times [2021-11-25 19:29:37,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:29:37,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449005587] [2021-11-25 19:29:37,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:37,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:29:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:37,607 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-25 19:29:37,608 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:29:37,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449005587] [2021-11-25 19:29:37,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449005587] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:29:37,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65482030] [2021-11-25 19:29:37,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:37,609 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:29:37,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:29:37,610 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:29:37,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 19:29:37,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:37,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-25 19:29:37,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:29:37,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 19:29:37,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:37,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 19:29:37,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:37,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 19:29:37,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:37,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 19:29:38,016 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:29:38,016 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:29:38,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65482030] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:29:38,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 19:29:38,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2021-11-25 19:29:38,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68418239] [2021-11-25 19:29:38,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:29:38,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:29:38,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:29:38,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:29:38,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:29:38,019 INFO L87 Difference]: Start difference. First operand 71 states and 77 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:38,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:29:38,109 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2021-11-25 19:29:38,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:29:38,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-25 19:29:38,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:29:38,110 INFO L225 Difference]: With dead ends: 65 [2021-11-25 19:29:38,111 INFO L226 Difference]: Without dead ends: 65 [2021-11-25 19:29:38,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-25 19:29:38,112 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 81 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:29:38,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 31 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:29:38,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-25 19:29:38,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-11-25 19:29:38,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 64 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:38,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 71 transitions. [2021-11-25 19:29:38,116 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 71 transitions. Word has length 22 [2021-11-25 19:29:38,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:29:38,117 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 71 transitions. [2021-11-25 19:29:38,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:38,117 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 71 transitions. [2021-11-25 19:29:38,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-25 19:29:38,118 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:29:38,119 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2021-11-25 19:29:38,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 19:29:38,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:29:38,319 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:29:38,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:29:38,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1532969926, now seen corresponding path program 1 times [2021-11-25 19:29:38,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:29:38,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810689137] [2021-11-25 19:29:38,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:38,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:29:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:38,426 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:29:38,426 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:29:38,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810689137] [2021-11-25 19:29:38,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810689137] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:29:38,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033712548] [2021-11-25 19:29:38,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:38,427 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:29:38,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:29:38,433 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:29:38,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 19:29:38,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:38,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 19:29:38,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:29:38,625 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:29:38,626 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:29:38,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033712548] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:29:38,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 19:29:38,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2021-11-25 19:29:38,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218909997] [2021-11-25 19:29:38,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:29:38,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:29:38,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:29:38,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:29:38,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-25 19:29:38,632 INFO L87 Difference]: Start difference. First operand 65 states and 71 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:38,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:29:38,664 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2021-11-25 19:29:38,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:29:38,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-25 19:29:38,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:29:38,668 INFO L225 Difference]: With dead ends: 59 [2021-11-25 19:29:38,668 INFO L226 Difference]: Without dead ends: 57 [2021-11-25 19:29:38,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-25 19:29:38,670 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 91 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:29:38,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 57 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:29:38,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-25 19:29:38,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-25 19:29:38,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 56 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:38,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2021-11-25 19:29:38,690 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 23 [2021-11-25 19:29:38,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:29:38,691 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2021-11-25 19:29:38,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:38,692 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2021-11-25 19:29:38,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-25 19:29:38,694 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:29:38,695 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:29:38,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 19:29:38,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-25 19:29:38,909 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:29:38,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:29:38,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1064479892, now seen corresponding path program 1 times [2021-11-25 19:29:38,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:29:38,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643943157] [2021-11-25 19:29:38,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:38,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:29:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:38,968 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:29:38,969 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:29:38,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643943157] [2021-11-25 19:29:38,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643943157] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:29:38,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:29:38,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:29:38,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265360570] [2021-11-25 19:29:38,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:29:38,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:29:38,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:29:38,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:29:38,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:29:38,972 INFO L87 Difference]: Start difference. First operand 57 states and 60 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:39,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:29:39,048 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2021-11-25 19:29:39,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:29:39,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-25 19:29:39,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:29:39,049 INFO L225 Difference]: With dead ends: 66 [2021-11-25 19:29:39,049 INFO L226 Difference]: Without dead ends: 66 [2021-11-25 19:29:39,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:29:39,051 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 71 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:29:39,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 47 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:29:39,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-25 19:29:39,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 56. [2021-11-25 19:29:39,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 42 states have (on average 1.4047619047619047) internal successors, (59), 55 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:39,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2021-11-25 19:29:39,055 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 23 [2021-11-25 19:29:39,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:29:39,055 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2021-11-25 19:29:39,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:39,055 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2021-11-25 19:29:39,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-25 19:29:39,056 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:29:39,057 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:29:39,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 19:29:39,057 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:29:39,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:29:39,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1064479891, now seen corresponding path program 1 times [2021-11-25 19:29:39,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:29:39,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66283140] [2021-11-25 19:29:39,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:39,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:29:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:39,130 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:29:39,131 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:29:39,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66283140] [2021-11-25 19:29:39,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66283140] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:29:39,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:29:39,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:29:39,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609317404] [2021-11-25 19:29:39,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:29:39,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:29:39,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:29:39,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:29:39,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:29:39,133 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:39,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:29:39,195 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2021-11-25 19:29:39,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:29:39,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-25 19:29:39,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:29:39,197 INFO L225 Difference]: With dead ends: 55 [2021-11-25 19:29:39,197 INFO L226 Difference]: Without dead ends: 55 [2021-11-25 19:29:39,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-25 19:29:39,198 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 115 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:29:39,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 42 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:29:39,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-25 19:29:39,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-11-25 19:29:39,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 42 states have (on average 1.380952380952381) internal successors, (58), 54 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:39,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2021-11-25 19:29:39,201 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 23 [2021-11-25 19:29:39,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:29:39,201 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2021-11-25 19:29:39,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:39,201 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2021-11-25 19:29:39,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-25 19:29:39,203 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:29:39,203 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:29:39,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 19:29:39,203 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:29:39,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:29:39,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1329740313, now seen corresponding path program 1 times [2021-11-25 19:29:39,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:29:39,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898748614] [2021-11-25 19:29:39,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:39,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:29:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:39,383 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 19:29:39,383 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:29:39,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898748614] [2021-11-25 19:29:39,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898748614] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:29:39,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:29:39,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:29:39,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069724509] [2021-11-25 19:29:39,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:29:39,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 19:29:39,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:29:39,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 19:29:39,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-25 19:29:39,386 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:39,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:29:39,669 INFO L93 Difference]: Finished difference Result 65 states and 69 transitions. [2021-11-25 19:29:39,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 19:29:39,670 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-25 19:29:39,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:29:39,671 INFO L225 Difference]: With dead ends: 65 [2021-11-25 19:29:39,671 INFO L226 Difference]: Without dead ends: 65 [2021-11-25 19:29:39,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-11-25 19:29:39,672 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 122 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:29:39,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 71 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 19:29:39,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-25 19:29:39,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 54. [2021-11-25 19:29:39,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 53 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:39,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2021-11-25 19:29:39,676 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 27 [2021-11-25 19:29:39,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:29:39,676 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2021-11-25 19:29:39,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:39,677 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2021-11-25 19:29:39,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-25 19:29:39,678 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:29:39,678 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:29:39,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-25 19:29:39,678 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:29:39,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:29:39,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1329740314, now seen corresponding path program 1 times [2021-11-25 19:29:39,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:29:39,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640281750] [2021-11-25 19:29:39,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:39,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:29:39,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:39,886 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 19:29:39,886 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:29:39,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640281750] [2021-11-25 19:29:39,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640281750] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:29:39,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:29:39,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:29:39,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095028571] [2021-11-25 19:29:39,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:29:39,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 19:29:39,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:29:39,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 19:29:39,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-25 19:29:39,888 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:40,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:29:40,145 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2021-11-25 19:29:40,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 19:29:40,146 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-25 19:29:40,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:29:40,147 INFO L225 Difference]: With dead ends: 54 [2021-11-25 19:29:40,147 INFO L226 Difference]: Without dead ends: 54 [2021-11-25 19:29:40,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-11-25 19:29:40,148 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 83 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:29:40,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 71 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 19:29:40,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-25 19:29:40,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2021-11-25 19:29:40,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 52 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:40,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2021-11-25 19:29:40,151 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 27 [2021-11-25 19:29:40,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:29:40,151 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2021-11-25 19:29:40,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:40,152 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2021-11-25 19:29:40,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-25 19:29:40,153 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:29:40,153 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:29:40,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-25 19:29:40,153 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:29:40,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:29:40,154 INFO L85 PathProgramCache]: Analyzing trace with hash -2008737315, now seen corresponding path program 1 times [2021-11-25 19:29:40,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:29:40,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677922931] [2021-11-25 19:29:40,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:40,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:29:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:40,243 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:29:40,243 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:29:40,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677922931] [2021-11-25 19:29:40,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677922931] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:29:40,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:29:40,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:29:40,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108627080] [2021-11-25 19:29:40,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:29:40,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 19:29:40,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:29:40,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 19:29:40,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-25 19:29:40,246 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:40,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:29:40,359 INFO L93 Difference]: Finished difference Result 79 states and 85 transitions. [2021-11-25 19:29:40,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:29:40,360 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-25 19:29:40,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:29:40,361 INFO L225 Difference]: With dead ends: 79 [2021-11-25 19:29:40,361 INFO L226 Difference]: Without dead ends: 79 [2021-11-25 19:29:40,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:29:40,362 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 161 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:29:40,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 72 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:29:40,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-25 19:29:40,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 54. [2021-11-25 19:29:40,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 53 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:40,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2021-11-25 19:29:40,366 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 29 [2021-11-25 19:29:40,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:29:40,367 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2021-11-25 19:29:40,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:40,367 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2021-11-25 19:29:40,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-25 19:29:40,368 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:29:40,368 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:29:40,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-25 19:29:40,368 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:29:40,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:29:40,369 INFO L85 PathProgramCache]: Analyzing trace with hash -2008737314, now seen corresponding path program 1 times [2021-11-25 19:29:40,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:29:40,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722896344] [2021-11-25 19:29:40,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:40,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:29:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:40,501 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:29:40,501 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:29:40,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722896344] [2021-11-25 19:29:40,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722896344] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:29:40,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:29:40,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:29:40,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744451557] [2021-11-25 19:29:40,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:29:40,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 19:29:40,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:29:40,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 19:29:40,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 19:29:40,504 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:40,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:29:40,671 INFO L93 Difference]: Finished difference Result 72 states and 77 transitions. [2021-11-25 19:29:40,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:29:40,672 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-25 19:29:40,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:29:40,672 INFO L225 Difference]: With dead ends: 72 [2021-11-25 19:29:40,672 INFO L226 Difference]: Without dead ends: 72 [2021-11-25 19:29:40,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-25 19:29:40,673 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 164 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:29:40,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 62 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:29:40,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-11-25 19:29:40,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 55. [2021-11-25 19:29:40,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 54 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:40,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2021-11-25 19:29:40,677 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 29 [2021-11-25 19:29:40,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:29:40,677 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2021-11-25 19:29:40,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:40,677 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2021-11-25 19:29:40,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-25 19:29:40,678 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:29:40,678 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:29:40,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-25 19:29:40,678 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:29:40,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:29:40,679 INFO L85 PathProgramCache]: Analyzing trace with hash -2141241893, now seen corresponding path program 1 times [2021-11-25 19:29:40,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:29:40,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113739020] [2021-11-25 19:29:40,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:40,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:29:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:40,782 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:29:40,783 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:29:40,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113739020] [2021-11-25 19:29:40,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113739020] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:29:40,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:29:40,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 19:29:40,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667251147] [2021-11-25 19:29:40,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:29:40,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 19:29:40,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:29:40,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 19:29:40,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 19:29:40,785 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:40,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:29:40,894 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2021-11-25 19:29:40,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:29:40,895 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-25 19:29:40,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:29:40,896 INFO L225 Difference]: With dead ends: 58 [2021-11-25 19:29:40,896 INFO L226 Difference]: Without dead ends: 58 [2021-11-25 19:29:40,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-25 19:29:40,897 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 108 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:29:40,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 82 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:29:40,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-11-25 19:29:40,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 55. [2021-11-25 19:29:40,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 45 states have (on average 1.288888888888889) internal successors, (58), 54 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:40,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2021-11-25 19:29:40,900 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 30 [2021-11-25 19:29:40,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:29:40,900 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2021-11-25 19:29:40,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:40,901 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2021-11-25 19:29:40,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-25 19:29:40,902 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:29:40,902 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:29:40,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-25 19:29:40,903 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:29:40,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:29:40,903 INFO L85 PathProgramCache]: Analyzing trace with hash -512026756, now seen corresponding path program 1 times [2021-11-25 19:29:40,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:29:40,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794373715] [2021-11-25 19:29:40,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:40,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:29:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:41,121 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 19:29:41,121 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:29:41,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794373715] [2021-11-25 19:29:41,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794373715] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:29:41,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:29:41,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 19:29:41,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816796024] [2021-11-25 19:29:41,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:29:41,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 19:29:41,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:29:41,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 19:29:41,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-25 19:29:41,123 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:41,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:29:41,349 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2021-11-25 19:29:41,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 19:29:41,350 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-25 19:29:41,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:29:41,351 INFO L225 Difference]: With dead ends: 55 [2021-11-25 19:29:41,351 INFO L226 Difference]: Without dead ends: 55 [2021-11-25 19:29:41,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-11-25 19:29:41,352 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 79 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:29:41,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 59 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:29:41,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-25 19:29:41,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-11-25 19:29:41,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 54 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:41,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2021-11-25 19:29:41,355 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 32 [2021-11-25 19:29:41,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:29:41,355 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2021-11-25 19:29:41,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:41,356 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2021-11-25 19:29:41,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-25 19:29:41,356 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:29:41,356 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:29:41,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-25 19:29:41,356 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:29:41,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:29:41,359 INFO L85 PathProgramCache]: Analyzing trace with hash -211100282, now seen corresponding path program 1 times [2021-11-25 19:29:41,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:29:41,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168200183] [2021-11-25 19:29:41,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:41,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:29:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:41,773 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 19:29:41,773 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:29:41,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168200183] [2021-11-25 19:29:41,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168200183] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:29:41,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:29:41,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-25 19:29:41,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107927479] [2021-11-25 19:29:41,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:29:41,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 19:29:41,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:29:41,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 19:29:41,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-25 19:29:41,775 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:42,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:29:42,299 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2021-11-25 19:29:42,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 19:29:42,300 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-25 19:29:42,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:29:42,300 INFO L225 Difference]: With dead ends: 66 [2021-11-25 19:29:42,300 INFO L226 Difference]: Without dead ends: 66 [2021-11-25 19:29:42,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2021-11-25 19:29:42,302 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 163 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:29:42,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 80 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 19:29:42,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-25 19:29:42,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 56. [2021-11-25 19:29:42,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 55 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:42,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2021-11-25 19:29:42,305 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 34 [2021-11-25 19:29:42,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:29:42,305 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2021-11-25 19:29:42,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:29:42,309 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2021-11-25 19:29:42,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-25 19:29:42,311 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:29:42,311 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:29:42,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-25 19:29:42,311 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:29:42,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:29:42,312 INFO L85 PathProgramCache]: Analyzing trace with hash 2045826363, now seen corresponding path program 1 times [2021-11-25 19:29:42,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:29:42,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997284301] [2021-11-25 19:29:42,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:42,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:29:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:42,755 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 19:29:42,755 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:29:42,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997284301] [2021-11-25 19:29:42,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997284301] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:29:42,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618836880] [2021-11-25 19:29:42,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:42,756 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:29:42,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:29:42,761 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:29:42,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 19:29:42,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:42,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 67 conjunts are in the unsatisfiable core [2021-11-25 19:29:42,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:29:43,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 19:29:43,149 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-25 19:29:43,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-25 19:29:43,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:43,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 17 [2021-11-25 19:29:43,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:43,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 17 [2021-11-25 19:29:43,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:43,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 17 [2021-11-25 19:29:43,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:43,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2021-11-25 19:29:43,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:43,615 INFO L354 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2021-11-25 19:29:43,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 49 [2021-11-25 19:29:43,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2021-11-25 19:29:43,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 19:29:43,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:43,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 38 [2021-11-25 19:29:43,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 19:29:43,890 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:43,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:43,893 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:29:43,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 24 [2021-11-25 19:29:43,906 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 19:29:43,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:29:44,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 103 [2021-11-25 19:29:46,189 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:29:46,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 110 treesize of output 204 [2021-11-25 19:29:51,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7187 treesize of output 6565 [2021-11-25 19:29:52,347 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:29:52,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 6711 treesize of output 6097 [2021-11-25 19:29:52,554 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:29:52,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 7690 treesize of output 7017 [2021-11-25 19:29:53,217 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:29:53,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 6889 treesize of output 6660 [2021-11-25 19:29:53,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6995 treesize of output 6797 [2021-11-25 19:29:54,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6909 treesize of output 6799 [2021-11-25 19:29:54,197 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-25 19:29:54,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1780434744] [2021-11-25 19:29:54,205 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2021-11-25 19:29:54,206 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:29:54,207 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:29:54,207 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:29:54,207 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:29:54,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 19:29:54,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 19:29:54,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:29:54,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 19:29:54,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:29:54,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 19:29:54,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:29:54,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:29:54,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 19:29:54,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:29:54,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:29:54,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2021-11-25 19:29:54,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 19:29:54,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 19:29:54,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 19:29:54,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 19:29:54,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:29:54,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 19:29:54,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 19:29:54,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:29:54,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 19:29:54,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:29:54,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 19:29:54,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:54,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 19:29:55,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,291 INFO L354 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2021-11-25 19:29:55,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 51 [2021-11-25 19:29:55,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 19:29:55,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 19:29:55,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 19:29:55,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 19:29:55,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:29:55,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 19:29:55,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 19:29:55,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 19:29:55,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:29:55,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:29:55,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 19:29:55,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 19:29:55,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 19:29:55,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 19:29:55,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 19:29:55,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:29:55,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:29:55,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:29:55,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 19:29:55,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:29:55,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:29:55,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:29:55,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 19:29:55,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,904 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:55,913 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 19:29:55,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 19:29:55,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 19:29:55,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:55,935 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:55,955 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 19:29:55,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 19:29:56,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 19:29:56,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 19:29:56,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:29:56,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-25 19:29:56,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 19:29:56,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:29:56,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:29:56,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 19:29:56,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:29:56,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:29:56,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 19:29:56,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 19:29:56,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,230 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:56,245 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 19:29:56,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 19:29:56,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,260 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:56,273 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 19:29:56,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 19:29:56,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 19:29:56,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 19:29:56,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-11-25 19:29:56,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 19:29:56,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 19:29:56,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,567 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:29:56,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-25 19:29:56,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,603 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:29:56,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-25 19:29:56,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 19:29:56,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 19:29:56,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,697 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:56,714 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-25 19:29:56,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-25 19:29:56,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,738 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:56,755 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-25 19:29:56,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-25 19:29:56,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,854 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:56,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,863 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:29:56,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 39 [2021-11-25 19:29:56,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 19:29:56,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,913 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:56,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:56,922 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:29:56,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 39 [2021-11-25 19:29:57,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:57,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:57,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:57,170 INFO L354 Elim1Store]: treesize reduction 108, result has 26.0 percent of original size [2021-11-25 19:29:57,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 164 treesize of output 140 [2021-11-25 19:29:57,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:57,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:57,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:57,287 INFO L354 Elim1Store]: treesize reduction 82, result has 38.8 percent of original size [2021-11-25 19:29:57,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 181 treesize of output 175 [2021-11-25 19:29:57,347 INFO L354 Elim1Store]: treesize reduction 33, result has 38.9 percent of original size [2021-11-25 19:29:57,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 25 [2021-11-25 19:29:57,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:57,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:57,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:57,597 INFO L354 Elim1Store]: treesize reduction 139, result has 9.7 percent of original size [2021-11-25 19:29:57,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 366 treesize of output 299 [2021-11-25 19:29:57,626 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:29:57,650 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-25 19:29:57,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 367 treesize of output 355 [2021-11-25 19:29:57,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:57,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:57,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:57,735 INFO L354 Elim1Store]: treesize reduction 106, result has 23.2 percent of original size [2021-11-25 19:29:57,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 364 treesize of output 331 [2021-11-25 19:30:01,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 19:30:01,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 19:30:01,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:30:01,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 19:30:01,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:30:01,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:30:01,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:01,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 19:30:01,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:30:01,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:01,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:30:01,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:01,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 19:30:01,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:01,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:30:01,232 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:30:09,710 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3722#(and (<= |ULTIMATE.start_dll_prepend_~data#1| 1) (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= |ULTIMATE.start_dll_prepend_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_node_create_~data#1|) (<= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |#NULL.base|) (<= 1 |ULTIMATE.start_dll_prepend_#in~data#1|) (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_prepend_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_dll_prepend_~head#1.offset|) (or (not (= |ULTIMATE.start_main_~ptr~0#1.base| 0)) (not (= |ULTIMATE.start_main_~ptr~0#1.offset| 0))) (<= 0 |ULTIMATE.start_dll_prepend_#in~head#1.base|) (<= |ULTIMATE.start_dll_prepend_~head#1.offset| 0) (not (= (select |#valid| |ULTIMATE.start_main_~ptr~0#1.base|) 1)) (<= 0 |ULTIMATE.start_node_create_#res#1.offset|) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~len~0#1| 2) (<= 0 |ULTIMATE.start_dll_prepend_#in~head#1.offset|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_dll_prepend_~head#1.base|) (<= 0 |ULTIMATE.start_dll_prepend_~new_head~1#1.offset|) (<= 1 |ULTIMATE.start_node_create_#in~data#1|) (<= |ULTIMATE.start_node_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_prepend_~new_head~1#1.offset| 0) (<= 0 (+ |ULTIMATE.start_dll_create_~len#1| 1)) (<= |ULTIMATE.start_node_create_#in~data#1| 1) (<= 0 |ULTIMATE.start_node_create_~temp~0#1.offset|) (<= |#NULL.base| 0) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 1 |ULTIMATE.start_dll_prepend_~data#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#NULL.offset|) (<= 1 |ULTIMATE.start_main_~data~0#1|) (<= |ULTIMATE.start_node_create_~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|))' at error location [2021-11-25 19:30:09,710 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:30:09,711 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-25 19:30:09,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-11-25 19:30:09,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026949502] [2021-11-25 19:30:09,711 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-25 19:30:09,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-25 19:30:09,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:30:09,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-25 19:30:09,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=3187, Unknown=9, NotChecked=0, Total=3422 [2021-11-25 19:30:09,715 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:30:10,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:30:10,800 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2021-11-25 19:30:10,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-25 19:30:10,801 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-25 19:30:10,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:30:10,802 INFO L225 Difference]: With dead ends: 85 [2021-11-25 19:30:10,802 INFO L226 Difference]: Without dead ends: 85 [2021-11-25 19:30:10,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1502 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=397, Invalid=4706, Unknown=9, NotChecked=0, Total=5112 [2021-11-25 19:30:10,805 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 298 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:30:10,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 104 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 19:30:10,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-25 19:30:10,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 58. [2021-11-25 19:30:10,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 48 states have (on average 1.2916666666666667) internal successors, (62), 57 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:30:10,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2021-11-25 19:30:10,808 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 35 [2021-11-25 19:30:10,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:30:10,808 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2021-11-25 19:30:10,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:30:10,809 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2021-11-25 19:30:10,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-25 19:30:10,809 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:30:10,809 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:30:10,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-25 19:30:11,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-11-25 19:30:11,010 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:30:11,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:30:11,010 INFO L85 PathProgramCache]: Analyzing trace with hash 2045826364, now seen corresponding path program 1 times [2021-11-25 19:30:11,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:30:11,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679212046] [2021-11-25 19:30:11,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:30:11,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:30:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:30:11,702 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:30:11,702 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:30:11,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679212046] [2021-11-25 19:30:11,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679212046] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:30:11,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497495286] [2021-11-25 19:30:11,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:30:11,703 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:30:11,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:30:11,704 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:30:11,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 19:30:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:30:11,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 89 conjunts are in the unsatisfiable core [2021-11-25 19:30:11,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:30:11,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 19:30:12,131 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-25 19:30:12,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-25 19:30:12,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:12,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 17 [2021-11-25 19:30:12,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:12,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 19:30:12,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:12,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 19:30:12,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:12,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 17 [2021-11-25 19:30:12,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:12,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 17 [2021-11-25 19:30:12,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:12,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 19:30:12,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:12,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2021-11-25 19:30:12,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:12,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2021-11-25 19:30:12,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:12,821 INFO L354 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2021-11-25 19:30:12,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 63 [2021-11-25 19:30:12,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:12,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:12,844 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 19:30:12,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 49 [2021-11-25 19:30:12,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2021-11-25 19:30:12,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 64 [2021-11-25 19:30:13,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:13,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 69 [2021-11-25 19:30:13,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:13,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 73 [2021-11-25 19:30:13,216 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:30:13,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:13,219 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:30:13,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 46 [2021-11-25 19:30:13,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:13,234 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-11-25 19:30:13,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 23 [2021-11-25 19:30:13,268 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 19:30:13,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:30:13,552 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:30:13,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 189 treesize of output 193 [2021-11-25 19:30:13,664 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1742 (Array Int Int))) (or (< (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_prepend_#t~mem10#1.base| v_ArrVal_1742))) (store .cse0 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse0 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.offset|))) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0) (and (forall ((v_ArrVal_1743 (Array Int Int))) (<= (let ((.cse1 (let ((.cse3 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_prepend_#t~mem10#1.base| v_ArrVal_1742))) (store .cse3 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse3 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.offset|))))) (select (select .cse1 (select (select (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_prepend_#t~mem10#1.base| v_ArrVal_1743))) (store .cse2 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse2 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.base|))) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (+ |c_ULTIMATE.start_dll_prepend_#t~mem10#1.offset| 4))) (forall ((v_ArrVal_1743 (Array Int Int))) (<= 0 (+ (let ((.cse4 (let ((.cse6 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_prepend_#t~mem10#1.base| v_ArrVal_1742))) (store .cse6 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse6 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.offset|))))) (select (select .cse4 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_prepend_#t~mem10#1.base| v_ArrVal_1743))) (store .cse5 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse5 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.base|))) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select .cse4 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) 4))) (forall ((v_ArrVal_1743 (Array Int Int))) (= (select (let ((.cse7 (let ((.cse8 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_prepend_#t~mem10#1.base| v_ArrVal_1743))) (store .cse8 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse8 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.base|))))) (select .cse7 (select (select .cse7 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (let ((.cse9 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_prepend_#t~mem10#1.base| v_ArrVal_1742))) (store .cse9 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse9 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.offset|))) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)) |c_ULTIMATE.start_dll_prepend_#t~mem10#1.base|))))) is different from false [2021-11-25 19:30:13,757 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1742 (Array Int Int))) (or (< (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|) v_ArrVal_1742))) (store .cse0 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse0 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.offset|))) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0) (and (forall ((v_ArrVal_1743 (Array Int Int))) (<= 0 (+ (let ((.cse3 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|))) (let ((.cse1 (let ((.cse4 (store |c_#memory_$Pointer$.offset| .cse3 v_ArrVal_1742))) (store .cse4 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse4 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.offset|))))) (select (select .cse1 (select (select (let ((.cse2 (store |c_#memory_$Pointer$.base| .cse3 v_ArrVal_1743))) (store .cse2 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse2 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.base|))) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) 4))) (forall ((v_ArrVal_1743 (Array Int Int))) (<= (let ((.cse7 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|))) (let ((.cse5 (let ((.cse8 (store |c_#memory_$Pointer$.offset| .cse7 v_ArrVal_1742))) (store .cse8 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse8 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.offset|))))) (select (select .cse5 (select (select (let ((.cse6 (store |c_#memory_$Pointer$.base| .cse7 v_ArrVal_1743))) (store .cse6 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse6 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.base|))) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select .cse5 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|) 4))) (forall ((v_ArrVal_1743 (Array Int Int))) (let ((.cse11 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|))) (= (select (let ((.cse9 (let ((.cse10 (store |c_#memory_$Pointer$.base| .cse11 v_ArrVal_1743))) (store .cse10 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse10 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.base|))))) (select .cse9 (select (select .cse9 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (let ((.cse12 (store |c_#memory_$Pointer$.offset| .cse11 v_ArrVal_1742))) (store .cse12 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse12 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.offset|))) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)) .cse11)))))) is different from false [2021-11-25 19:30:14,536 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1736 (Array Int Int)) (v_ArrVal_1742 (Array Int Int)) (v_ArrVal_1737 (Array Int Int))) (or (and (forall ((v_ArrVal_1743 (Array Int Int))) (<= 0 (+ (let ((.cse5 (+ |c_ULTIMATE.start_node_create_~temp~0#1.offset| 4))) (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| (store v_ArrVal_1737 .cse5 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_1737) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|))))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|))) (let ((.cse0 (let ((.cse4 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| (store v_ArrVal_1736 .cse5 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_1736) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|))) .cse3 v_ArrVal_1742))) (store .cse4 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse4 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.offset|))))) (select (select .cse0 (select (select (let ((.cse1 (store .cse2 .cse3 v_ArrVal_1743))) (store .cse1 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse1 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base|))) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))))) 4))) (forall ((v_ArrVal_1743 (Array Int Int))) (let ((.cse12 (+ |c_ULTIMATE.start_node_create_~temp~0#1.offset| 4))) (let ((.cse11 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| (store v_ArrVal_1736 .cse12 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_1736) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|))))) (<= (let ((.cse8 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| (store v_ArrVal_1737 .cse12 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_1737) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|))))) (let ((.cse9 (select (select .cse8 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|))) (let ((.cse6 (let ((.cse10 (store .cse11 .cse9 v_ArrVal_1742))) (store .cse10 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse10 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.offset|))))) (select (select .cse6 (select (select (let ((.cse7 (store .cse8 .cse9 v_ArrVal_1743))) (store .cse7 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse7 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base|))) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select .cse6 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))))) (+ 4 (select (select .cse11 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)))))) (forall ((v_ArrVal_1743 (Array Int Int))) (let ((.cse18 (+ |c_ULTIMATE.start_node_create_~temp~0#1.offset| 4))) (let ((.cse16 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| (store v_ArrVal_1737 .cse18 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_1737) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|))))) (let ((.cse13 (select (select .cse16 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|))) (= .cse13 (select (let ((.cse14 (let ((.cse15 (store .cse16 .cse13 v_ArrVal_1743))) (store .cse15 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse15 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base|))))) (select .cse14 (select (select .cse14 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (let ((.cse17 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| (store v_ArrVal_1736 .cse18 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_1736) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|))) .cse13 v_ArrVal_1742))) (store .cse17 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse17 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.offset|))) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))))))) (< (select (select (let ((.cse19 (let ((.cse20 (+ |c_ULTIMATE.start_node_create_~temp~0#1.offset| 4))) (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| (store v_ArrVal_1736 .cse20 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_1736) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|))) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| (store v_ArrVal_1737 .cse20 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_1737) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|))) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|) v_ArrVal_1742)))) (store .cse19 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse19 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.offset|))) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0))) is different from false [2021-11-25 19:30:14,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13396 treesize of output 12898 [2021-11-25 19:30:15,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24552 treesize of output 23044 [2021-11-25 19:30:15,492 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:30:15,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23261 treesize of output 21749 [2021-11-25 19:30:15,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23696 treesize of output 22216 [2021-11-25 19:30:16,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22532 treesize of output 22196 [2021-11-25 19:30:17,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22748 treesize of output 22332 [2021-11-25 19:30:18,290 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:30:18,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22636 treesize of output 22034 [2021-11-25 19:30:19,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22243 treesize of output 22117 [2021-11-25 19:30:19,194 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-25 19:30:19,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1934695210] [2021-11-25 19:30:19,197 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2021-11-25 19:30:19,197 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:30:19,197 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:30:19,198 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:30:19,198 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:30:19,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 19:30:19,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 19:30:19,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 19:30:19,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:30:19,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:30:19,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:30:19,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:30:19,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 19:30:19,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 19:30:19,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:30:19,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:30:19,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2021-11-25 19:30:19,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 19:30:19,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 19:30:19,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 19:30:19,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 19:30:19,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 19:30:19,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:30:19,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 19:30:19,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:30:19,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 19:30:19,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:30:19,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 19:30:19,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 19:30:19,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:19,989 INFO L354 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2021-11-25 19:30:19,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 51 [2021-11-25 19:30:20,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 19:30:20,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 19:30:20,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 19:30:20,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 19:30:20,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 19:30:20,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:30:20,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 19:30:20,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:30:20,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 19:30:20,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 19:30:20,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:30:20,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 19:30:20,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 19:30:20,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 19:30:20,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:30:20,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:30:20,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 19:30:20,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:30:20,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:30:20,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 19:30:20,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:30:20,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 19:30:20,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:30:20,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 19:30:20,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,498 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:30:20,514 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 19:30:20,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 19:30:20,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,528 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:30:20,537 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 19:30:20,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 19:30:20,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 19:30:20,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 19:30:20,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:30:20,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:30:20,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 19:30:20,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:30:20,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 19:30:20,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:30:20,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:30:20,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:30:20,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 19:30:20,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,728 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:30:20,736 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 19:30:20,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 19:30:20,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 19:30:20,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,768 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:30:20,779 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 19:30:20,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 19:30:20,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 19:30:20,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 19:30:20,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 19:30:20,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 19:30:20,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:20,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 19:30:20,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,006 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:30:21,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-25 19:30:21,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 19:30:21,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,048 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:30:21,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-25 19:30:21,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,087 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:30:21,100 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-25 19:30:21,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-25 19:30:21,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,121 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:30:21,135 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-25 19:30:21,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-25 19:30:21,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 19:30:21,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,228 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:30:21,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,235 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:30:21,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 39 [2021-11-25 19:30:21,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,250 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:30:21,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,258 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:30:21,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 39 [2021-11-25 19:30:21,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 19:30:21,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,438 INFO L354 Elim1Store]: treesize reduction 108, result has 26.0 percent of original size [2021-11-25 19:30:21,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 166 treesize of output 140 [2021-11-25 19:30:21,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,511 INFO L354 Elim1Store]: treesize reduction 82, result has 38.8 percent of original size [2021-11-25 19:30:21,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 183 treesize of output 175 [2021-11-25 19:30:21,555 INFO L354 Elim1Store]: treesize reduction 33, result has 38.9 percent of original size [2021-11-25 19:30:21,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 25 [2021-11-25 19:30:21,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,719 INFO L354 Elim1Store]: treesize reduction 139, result has 9.7 percent of original size [2021-11-25 19:30:21,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 368 treesize of output 299 [2021-11-25 19:30:21,736 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:30:21,752 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-25 19:30:21,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 367 treesize of output 355 [2021-11-25 19:30:21,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:21,811 INFO L354 Elim1Store]: treesize reduction 106, result has 23.2 percent of original size [2021-11-25 19:30:21,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 364 treesize of output 331 [2021-11-25 19:30:24,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 19:30:24,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 19:30:24,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:30:24,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 19:30:24,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-25 19:30:24,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:30:24,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:24,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 19:30:24,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:30:24,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:24,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 19:30:24,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:24,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:30:24,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:24,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:30:24,711 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:30:33,469 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4115#(and (<= |ULTIMATE.start_dll_prepend_~data#1| 1) (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= |ULTIMATE.start_dll_prepend_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_node_create_~data#1|) (<= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |#NULL.base|) (<= 1 |ULTIMATE.start_dll_prepend_#in~data#1|) (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (or (< (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4) 0) (< (select |#length| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 8))) (<= |ULTIMATE.start_dll_prepend_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_dll_prepend_~head#1.offset|) (or (not (= |ULTIMATE.start_main_~ptr~0#1.base| 0)) (not (= |ULTIMATE.start_main_~ptr~0#1.offset| 0))) (<= 0 |ULTIMATE.start_dll_prepend_#in~head#1.base|) (<= |ULTIMATE.start_dll_prepend_~head#1.offset| 0) (<= 0 |ULTIMATE.start_node_create_#res#1.offset|) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~len~0#1| 2) (<= 0 |ULTIMATE.start_dll_prepend_#in~head#1.offset|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_dll_prepend_~head#1.base|) (<= 0 |ULTIMATE.start_dll_prepend_~new_head~1#1.offset|) (<= 1 |ULTIMATE.start_node_create_#in~data#1|) (<= |ULTIMATE.start_node_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_prepend_~new_head~1#1.offset| 0) (<= 0 (+ |ULTIMATE.start_dll_create_~len#1| 1)) (<= |ULTIMATE.start_node_create_#in~data#1| 1) (<= 0 |ULTIMATE.start_node_create_~temp~0#1.offset|) (<= |#NULL.base| 0) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 1 |ULTIMATE.start_dll_prepend_~data#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#NULL.offset|) (<= 1 |ULTIMATE.start_main_~data~0#1|) (<= |ULTIMATE.start_node_create_~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|))' at error location [2021-11-25 19:30:33,470 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:30:33,470 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-25 19:30:33,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2021-11-25 19:30:33,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720804525] [2021-11-25 19:30:33,470 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-25 19:30:33,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-25 19:30:33,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:30:33,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-25 19:30:33,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=3672, Unknown=11, NotChecked=372, Total=4290 [2021-11-25 19:30:33,473 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand has 21 states, 20 states have (on average 1.75) internal successors, (35), 20 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:30:35,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:30:35,191 INFO L93 Difference]: Finished difference Result 98 states and 103 transitions. [2021-11-25 19:30:35,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-25 19:30:35,193 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.75) internal successors, (35), 20 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-25 19:30:35,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:30:35,194 INFO L225 Difference]: With dead ends: 98 [2021-11-25 19:30:35,194 INFO L226 Difference]: Without dead ends: 98 [2021-11-25 19:30:35,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1881 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=488, Invalid=5519, Unknown=11, NotChecked=462, Total=6480 [2021-11-25 19:30:35,197 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 443 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:30:35,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 123 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 19:30:35,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-11-25 19:30:35,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 59. [2021-11-25 19:30:35,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 49 states have (on average 1.2653061224489797) internal successors, (62), 58 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:30:35,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions. [2021-11-25 19:30:35,200 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 62 transitions. Word has length 35 [2021-11-25 19:30:35,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:30:35,200 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 62 transitions. [2021-11-25 19:30:35,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.75) internal successors, (35), 20 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:30:35,201 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 62 transitions. [2021-11-25 19:30:35,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-25 19:30:35,201 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:30:35,202 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:30:35,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-25 19:30:35,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:30:35,421 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:30:35,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:30:35,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1003819459, now seen corresponding path program 1 times [2021-11-25 19:30:35,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:30:35,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403377867] [2021-11-25 19:30:35,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:30:35,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:30:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:30:35,957 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 19:30:35,957 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:30:35,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403377867] [2021-11-25 19:30:35,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403377867] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:30:35,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538548680] [2021-11-25 19:30:35,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:30:35,958 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:30:35,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:30:35,961 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:30:35,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-25 19:30:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:30:36,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 69 conjunts are in the unsatisfiable core [2021-11-25 19:30:36,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:30:36,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 19:30:36,456 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-25 19:30:36,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-25 19:30:36,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:36,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2021-11-25 19:30:36,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:36,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2021-11-25 19:30:36,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:36,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2021-11-25 19:30:36,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:36,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 19:30:37,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:37,039 INFO L354 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2021-11-25 19:30:37,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 50 [2021-11-25 19:30:37,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-25 19:30:37,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 19:30:37,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:37,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 30 [2021-11-25 19:30:37,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 19:30:37,248 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:30:37,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:37,252 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:30:37,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 23 [2021-11-25 19:30:37,265 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 19:30:37,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:30:37,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 102 [2021-11-25 19:30:41,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2711 treesize of output 2467 [2021-11-25 19:30:41,262 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:30:41,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2643 treesize of output 2407 [2021-11-25 19:30:41,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2602 treesize of output 2462 [2021-11-25 19:30:41,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2682 treesize of output 2592 [2021-11-25 19:30:42,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-25 19:30:42,365 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 19:30:42,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538548680] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:30:42,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [31598029] [2021-11-25 19:30:42,368 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2021-11-25 19:30:42,368 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:30:42,368 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:30:42,368 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:30:42,369 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:30:42,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 19:30:42,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 19:30:42,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:30:42,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 19:30:42,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:30:42,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:30:42,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 19:30:42,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:30:42,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:30:42,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 19:30:42,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:30:42,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2021-11-25 19:30:42,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 19:30:42,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 19:30:42,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 19:30:42,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 19:30:42,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:30:42,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 19:30:42,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-25 19:30:42,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:30:42,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-25 19:30:42,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:42,998 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:30:42,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-25 19:30:43,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:30:43,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,048 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:30:43,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-25 19:30:43,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2021-11-25 19:30:43,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 19:30:43,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 19:30:43,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 19:30:43,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 19:30:43,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 19:30:43,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:30:43,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 19:30:43,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 19:30:43,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:30:43,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 19:30:43,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 19:30:43,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 19:30:43,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 19:30:43,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 19:30:43,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 19:30:43,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:43,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-11-25 19:30:44,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 19:30:44,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 19:30:44,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,057 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:30:44,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-25 19:30:44,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,084 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:30:44,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-25 19:30:44,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 19:30:44,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,132 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:30:44,144 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-25 19:30:44,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-25 19:30:44,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,171 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:30:44,184 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-25 19:30:44,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-25 19:30:44,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,247 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:30:44,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,254 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:30:44,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 39 [2021-11-25 19:30:44,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 19:30:44,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,294 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:30:44,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,302 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:30:44,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 39 [2021-11-25 19:30:44,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,479 INFO L354 Elim1Store]: treesize reduction 108, result has 26.0 percent of original size [2021-11-25 19:30:44,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 164 treesize of output 140 [2021-11-25 19:30:44,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,552 INFO L354 Elim1Store]: treesize reduction 82, result has 38.8 percent of original size [2021-11-25 19:30:44,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 181 treesize of output 175 [2021-11-25 19:30:44,590 INFO L354 Elim1Store]: treesize reduction 33, result has 38.9 percent of original size [2021-11-25 19:30:44,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 25 [2021-11-25 19:30:44,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,799 INFO L354 Elim1Store]: treesize reduction 103, result has 35.2 percent of original size [2021-11-25 19:30:44,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 309 treesize of output 307 [2021-11-25 19:30:44,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:30:44,855 INFO L354 Elim1Store]: treesize reduction 84, result has 24.3 percent of original size [2021-11-25 19:30:44,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 329 treesize of output 266 [2021-11-25 19:30:44,869 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:30:44,884 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-25 19:30:44,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 270 treesize of output 258 [2021-11-25 19:31:24,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 19:31:24,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 19:31:24,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 19:31:24,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:31:24,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-25 19:31:24,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:31:24,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:24,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 19:31:24,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:31:24,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:24,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:31:24,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:24,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 19:31:24,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:24,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 19:31:24,913 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:31:35,319 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4575#(and (<= |ULTIMATE.start_dll_prepend_~data#1| 1) (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= |ULTIMATE.start_dll_prepend_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_node_create_~data#1|) (<= 1 |ULTIMATE.start_dll_prepend_#in~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (not (= |ULTIMATE.start_main_~count~0#1| (+ |ULTIMATE.start_main_~len~0#1| 1))) (<= |ULTIMATE.start_dll_prepend_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_prepend_~head#1.offset|) (<= 0 |ULTIMATE.start_dll_prepend_#in~head#1.base|) (<= |ULTIMATE.start_dll_prepend_~head#1.offset| 0) (<= 0 |ULTIMATE.start_node_create_#res#1.offset|) (<= 0 |ULTIMATE.start_dll_prepend_#in~head#1.offset|) (= |ULTIMATE.start_main_~ptr~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_dll_prepend_~head#1.base|) (= |ULTIMATE.start_main_~ptr~0#1.base| 0) (<= 0 |ULTIMATE.start_dll_prepend_~new_head~1#1.offset|) (<= 1 |ULTIMATE.start_node_create_#in~data#1|) (<= |ULTIMATE.start_node_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_prepend_~new_head~1#1.offset| 0) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_node_create_#in~data#1| 1) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 1 |ULTIMATE.start_dll_prepend_~data#1|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= |ULTIMATE.start_node_create_~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2021-11-25 19:31:35,319 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:31:35,319 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 19:31:35,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 39 [2021-11-25 19:31:35,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837608005] [2021-11-25 19:31:35,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 19:31:35,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-11-25 19:31:35,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:31:35,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-11-25 19:31:35,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=3767, Unknown=7, NotChecked=0, Total=4032 [2021-11-25 19:31:35,322 INFO L87 Difference]: Start difference. First operand 59 states and 62 transitions. Second operand has 40 states, 40 states have (on average 2.475) internal successors, (99), 39 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:31:36,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:31:36,140 INFO L93 Difference]: Finished difference Result 62 states and 64 transitions. [2021-11-25 19:31:36,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-25 19:31:36,140 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.475) internal successors, (99), 39 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-25 19:31:36,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:31:36,141 INFO L225 Difference]: With dead ends: 62 [2021-11-25 19:31:36,141 INFO L226 Difference]: Without dead ends: 62 [2021-11-25 19:31:36,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1598 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=451, Invalid=4944, Unknown=7, NotChecked=0, Total=5402 [2021-11-25 19:31:36,144 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 67 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 228 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:31:36,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 364 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 371 Invalid, 0 Unknown, 228 Unchecked, 0.3s Time] [2021-11-25 19:31:36,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-25 19:31:36,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 59. [2021-11-25 19:31:36,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 58 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:31:36,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2021-11-25 19:31:36,148 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 36 [2021-11-25 19:31:36,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:31:36,148 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2021-11-25 19:31:36,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.475) internal successors, (99), 39 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:31:36,149 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2021-11-25 19:31:36,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-25 19:31:36,149 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:31:36,149 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:31:36,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-25 19:31:36,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-11-25 19:31:36,373 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-25 19:31:36,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:31:36,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1629239134, now seen corresponding path program 1 times [2021-11-25 19:31:36,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:31:36,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696969565] [2021-11-25 19:31:36,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:31:36,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:31:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:31:37,382 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:31:37,382 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:31:37,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696969565] [2021-11-25 19:31:37,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696969565] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:31:37,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308318152] [2021-11-25 19:31:37,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:31:37,383 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:31:37,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:31:37,385 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:31:37,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480bffb1-04bf-4bea-9422-a8f513e91169/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-25 19:31:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:31:37,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 124 conjunts are in the unsatisfiable core [2021-11-25 19:31:37,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:31:37,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 19:31:37,717 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 19:31:37,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 19:31:37,935 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-25 19:31:37,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 22 treesize of output 33 [2021-11-25 19:31:38,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 19:31:38,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:38,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 19:31:38,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:38,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 19:31:38,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 19:31:38,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:38,424 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-25 19:31:38,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 18 [2021-11-25 19:31:38,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:38,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 19:31:38,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:38,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 32 [2021-11-25 19:31:38,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-11-25 19:31:38,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:38,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 19:31:38,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:38,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 32 [2021-11-25 19:31:38,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-11-25 19:31:38,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:38,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 32 [2021-11-25 19:31:38,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-11-25 19:31:38,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:38,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 19:31:38,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:38,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2021-11-25 19:31:38,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:38,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 32 [2021-11-25 19:31:38,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-25 19:31:39,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:39,317 INFO L354 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2021-11-25 19:31:39,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 82 [2021-11-25 19:31:39,328 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:31:39,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:39,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2021-11-25 19:31:39,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:39,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:39,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:39,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2021-11-25 19:31:39,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:39,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 33 [2021-11-25 19:31:39,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 19:31:39,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:39,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 19:31:39,679 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:31:39,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:39,684 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:31:39,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 90 treesize of output 46 [2021-11-25 19:31:39,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:31:39,695 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-11-25 19:31:39,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 16 [2021-11-25 19:31:39,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 19:31:39,886 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:31:39,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:31:40,207 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2135 (Array Int Int)) (v_ArrVal_2132 (Array Int Int)) (v_ArrVal_2130 (Array Int Int)) (v_ArrVal_2129 Int)) (let ((.cse4 (let ((.cse6 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_prepend_#t~mem10#1.base| v_ArrVal_2132))) (store .cse6 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse6 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.offset|))))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (< .cse0 0) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse1 (let ((.cse5 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_prepend_#t~mem10#1.base| v_ArrVal_2130))) (store .cse5 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse5 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.base|))))) (let ((.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse3 (+ .cse0 4))) (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_dll_prepend_#t~mem10#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_dll_prepend_#t~mem10#1.base|) (+ |c_ULTIMATE.start_dll_prepend_#t~mem10#1.offset| 8) v_ArrVal_2129)) |c_ULTIMATE.start_dll_prepend_~head#1.base| v_ArrVal_2135) (select (select .cse1 .cse2) .cse3)) (select (select .cse4 .cse2) .cse3))))))))) is different from false [2021-11-25 19:31:40,259 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_31| Int) (v_ArrVal_2135 (Array Int Int)) (v_ArrVal_2132 (Array Int Int)) (v_ArrVal_2130 (Array Int Int)) (v_ArrVal_2129 Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|))) (let ((.cse4 (let ((.cse7 (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_2132))) (store .cse7 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse7 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.offset|))))) (let ((.cse5 (select (select .cse4 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (= (let ((.cse1 (let ((.cse6 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_2130))) (store .cse6 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse6 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.base|))))) (let ((.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse3 (+ .cse5 4))) (select (select (store (store |c_#memory_int| .cse0 (store (select |c_#memory_int| .cse0) (+ |v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_31| 8) v_ArrVal_2129)) |c_ULTIMATE.start_dll_prepend_~head#1.base| v_ArrVal_2135) (select (select .cse1 .cse2) .cse3)) (select (select .cse4 .cse2) .cse3)))) |c_ULTIMATE.start_main_~data~0#1|) (< |v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_31| (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)) (< .cse5 0)))))) is different from false [2021-11-25 19:31:41,656 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2128 (Array Int Int)) (|v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_31| Int) (v_ArrVal_2135 (Array Int Int)) (v_ArrVal_2123 (Array Int Int)) (v_ArrVal_2122 (Array Int Int)) (v_ArrVal_2132 (Array Int Int)) (v_ArrVal_2130 (Array Int Int)) (v_ArrVal_2129 Int)) (let ((.cse11 (+ |c_ULTIMATE.start_node_create_~temp~0#1.offset| 4))) (let ((.cse8 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| (store v_ArrVal_2122 .cse11 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2122) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|))))) (let ((.cse9 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| (store v_ArrVal_2123 .cse11 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2123) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)))) (.cse1 (select (select .cse8 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|))) (let ((.cse5 (let ((.cse10 (store .cse9 .cse1 v_ArrVal_2132))) (store .cse10 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse10 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.offset|))))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (= (let ((.cse2 (let ((.cse7 (store .cse8 .cse1 v_ArrVal_2130))) (store .cse7 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse7 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base|))))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse4 (+ 4 .cse6))) (select (select (store (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2128))) (store .cse0 .cse1 (store (select .cse0 .cse1) (+ |v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_31| 8) v_ArrVal_2129))) |c_ULTIMATE.start_dll_prepend_~head#1.base| v_ArrVal_2135) (select (select .cse2 .cse3) .cse4)) (select (select .cse5 .cse3) .cse4)))) |c_ULTIMATE.start_main_~data~0#1|) (< |v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_31| (select (select .cse9 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)) (< .cse6 0)))))))) is different from false [2021-11-25 19:31:41,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10296 treesize of output 9726 [2021-11-25 19:31:42,022 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:31:42,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 10736 treesize of output 10126 [2021-11-25 19:31:42,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13186 treesize of output 12394 [2021-11-25 19:31:42,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 318130 treesize of output 313792 [2021-11-25 19:31:43,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 384574 treesize of output 376914 [2021-11-25 19:31:44,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 439450 treesize of output 432138 [2021-11-25 19:31:45,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 467289 treesize of output 463613 [2021-11-25 19:31:46,888 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:31:46,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 492339 treesize of output 487193 [2021-11-25 19:31:59,123 WARN L227 SmtUtils]: Spent 7.91s on a formula simplification. DAG size of input: 1331 DAG size of output: 1331 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)