./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/list_search-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list_search-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8b9ae191666cff52a5646f600ca779e3fb8cdedc .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list_search-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8b9ae191666cff52a5646f600ca779e3fb8cdedc ................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: Sort C_DOUBLE not declared --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:54:14,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:54:14,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:54:14,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:54:14,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:54:14,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:54:14,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:54:14,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:54:14,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:54:14,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:54:14,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:54:14,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:54:14,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:54:14,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:54:14,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:54:14,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:54:14,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:54:14,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:54:14,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:54:14,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:54:14,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:54:14,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:54:14,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:54:14,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:54:14,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:54:14,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:54:14,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:54:14,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:54:14,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:54:14,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:54:14,536 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:54:14,537 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:54:14,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:54:14,538 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:54:14,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:54:14,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:54:14,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:54:14,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:54:14,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:54:14,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:54:14,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:54:14,545 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-11-15 23:54:14,572 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:54:14,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:54:14,573 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:54:14,574 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:54:14,574 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:54:14,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:54:14,575 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:54:14,575 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 23:54:14,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:54:14,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:54:14,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:54:14,576 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-15 23:54:14,576 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-15 23:54:14,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:54:14,576 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:54:14,577 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:54:14,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:54:14,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:54:14,577 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:54:14,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:54:14,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:54:14,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:54:14,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:54:14,579 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:54:14,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:54:14,587 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer 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-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> 8b9ae191666cff52a5646f600ca779e3fb8cdedc [2019-11-15 23:54:14,622 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:54:14,631 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:54:14,634 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:54:14,636 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:54:14,636 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:54:14,637 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/../../sv-benchmarks/c/list-properties/list_search-1.i [2019-11-15 23:54:14,701 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/data/caeac9059/13e1b6c6930b4d419d1c19f22a30f279/FLAGb9e6ac849 [2019-11-15 23:54:15,164 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:54:15,164 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/sv-benchmarks/c/list-properties/list_search-1.i [2019-11-15 23:54:15,177 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/data/caeac9059/13e1b6c6930b4d419d1c19f22a30f279/FLAGb9e6ac849 [2019-11-15 23:54:15,487 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/data/caeac9059/13e1b6c6930b4d419d1c19f22a30f279 [2019-11-15 23:54:15,489 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:54:15,490 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-15 23:54:15,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:54:15,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:54:15,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:54:15,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:54:15" (1/1) ... [2019-11-15 23:54:15,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41310824 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:54:15, skipping insertion in model container [2019-11-15 23:54:15,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:54:15" (1/1) ... [2019-11-15 23:54:15,505 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:54:15,548 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:54:15,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:54:15,858 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:54:15,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:54:15,940 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:54:15,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:54:15 WrapperNode [2019-11-15 23:54:15,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:54:15,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:54:15,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:54:15,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:54:15,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:54:15" (1/1) ... [2019-11-15 23:54:15,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:54:15" (1/1) ... [2019-11-15 23:54:15,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:54:15" (1/1) ... [2019-11-15 23:54:15,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:54:15" (1/1) ... [2019-11-15 23:54:15,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:54:15" (1/1) ... [2019-11-15 23:54:15,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:54:15" (1/1) ... [2019-11-15 23:54:15,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:54:15" (1/1) ... [2019-11-15 23:54:15,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:54:16,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:54:16,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:54:16,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:54:16,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:54:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:54:16,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-15 23:54:16,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:54:16,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-15 23:54:16,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-15 23:54:16,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-15 23:54:16,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-15 23:54:16,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-15 23:54:16,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-15 23:54:16,062 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2019-11-15 23:54:16,062 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2019-11-15 23:54:16,062 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-15 23:54:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-15 23:54:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-15 23:54:16,063 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-15 23:54:16,063 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-15 23:54:16,063 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-15 23:54:16,063 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-15 23:54:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-15 23:54:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-15 23:54:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-15 23:54:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-15 23:54:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-15 23:54:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-15 23:54:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-15 23:54:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-15 23:54:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-15 23:54:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-15 23:54:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-15 23:54:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-15 23:54:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-15 23:54:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-15 23:54:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-15 23:54:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-15 23:54:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-15 23:54:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-15 23:54:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-15 23:54:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-15 23:54:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-15 23:54:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-15 23:54:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-15 23:54:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-15 23:54:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-15 23:54:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-15 23:54:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-15 23:54:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-15 23:54:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-15 23:54:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-15 23:54:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-15 23:54:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-15 23:54:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-15 23:54:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-15 23:54:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-15 23:54:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-15 23:54:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-15 23:54:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-15 23:54:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-15 23:54:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-15 23:54:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-15 23:54:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-15 23:54:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-15 23:54:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-15 23:54:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-15 23:54:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-15 23:54:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-15 23:54:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-15 23:54:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-15 23:54:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-15 23:54:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-15 23:54:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-15 23:54:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-15 23:54:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-15 23:54:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-15 23:54:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-15 23:54:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-15 23:54:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-15 23:54:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-15 23:54:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-15 23:54:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-15 23:54:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-15 23:54:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-15 23:54:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-15 23:54:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-15 23:54:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-15 23:54:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-15 23:54:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-15 23:54:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-15 23:54:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-15 23:54:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-15 23:54:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-15 23:54:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-15 23:54:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-15 23:54:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-15 23:54:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-15 23:54:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-15 23:54:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-15 23:54:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-15 23:54:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-15 23:54:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-15 23:54:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-15 23:54:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-15 23:54:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-15 23:54:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-15 23:54:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-15 23:54:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-15 23:54:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-15 23:54:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-15 23:54:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-15 23:54:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-15 23:54:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-15 23:54:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-15 23:54:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-15 23:54:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-15 23:54:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-15 23:54:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-15 23:54:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-15 23:54:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-15 23:54:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-15 23:54:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-15 23:54:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-15 23:54:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-15 23:54:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2019-11-15 23:54:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 23:54:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-15 23:54:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2019-11-15 23:54:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-15 23:54:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 23:54:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-15 23:54:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-15 23:54:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:54:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-15 23:54:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:54:16,568 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:54:16,568 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-11-15 23:54:16,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:54:16 BoogieIcfgContainer [2019-11-15 23:54:16,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:54:16,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:54:16,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:54:16,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:54:16,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:54:15" (1/3) ... [2019-11-15 23:54:16,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a715be4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:54:16, skipping insertion in model container [2019-11-15 23:54:16,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:54:15" (2/3) ... [2019-11-15 23:54:16,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a715be4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:54:16, skipping insertion in model container [2019-11-15 23:54:16,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:54:16" (3/3) ... [2019-11-15 23:54:16,576 INFO L109 eAbstractionObserver]: Analyzing ICFG list_search-1.i [2019-11-15 23:54:16,590 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:54:16,601 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2019-11-15 23:54:16,610 INFO L249 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2019-11-15 23:54:16,641 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:54:16,641 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-15 23:54:16,641 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:54:16,641 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:54:16,642 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:54:16,642 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:54:16,642 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:54:16,642 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:54:16,663 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2019-11-15 23:54:16,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 23:54:16,676 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:54:16,677 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:54:16,680 INFO L410 AbstractCegarLoop]: === Iteration 1 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION]=== [2019-11-15 23:54:16,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:54:16,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1520208519, now seen corresponding path program 1 times [2019-11-15 23:54:16,696 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:54:16,696 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473971524] [2019-11-15 23:54:16,697 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:16,697 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:16,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:54:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:16,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:54:16,884 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473971524] [2019-11-15 23:54:16,885 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:54:16,885 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 23:54:16,886 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118458483] [2019-11-15 23:54:16,890 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 23:54:16,890 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:54:16,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 23:54:16,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:54:16,902 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 4 states. [2019-11-15 23:54:17,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:54:17,145 INFO L93 Difference]: Finished difference Result 70 states and 76 transitions. [2019-11-15 23:54:17,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 23:54:17,147 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-15 23:54:17,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:54:17,158 INFO L225 Difference]: With dead ends: 70 [2019-11-15 23:54:17,158 INFO L226 Difference]: Without dead ends: 66 [2019-11-15 23:54:17,162 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:54:17,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-11-15 23:54:17,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2019-11-15 23:54:17,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-11-15 23:54:17,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 72 transitions. [2019-11-15 23:54:17,217 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 72 transitions. Word has length 9 [2019-11-15 23:54:17,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:54:17,218 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 72 transitions. [2019-11-15 23:54:17,218 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 23:54:17,218 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 72 transitions. [2019-11-15 23:54:17,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 23:54:17,219 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:54:17,219 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:54:17,221 INFO L410 AbstractCegarLoop]: === Iteration 2 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION]=== [2019-11-15 23:54:17,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:54:17,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1520208520, now seen corresponding path program 1 times [2019-11-15 23:54:17,222 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:54:17,222 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898698564] [2019-11-15 23:54:17,222 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:17,222 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:17,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:54:17,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:17,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:54:17,348 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898698564] [2019-11-15 23:54:17,348 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:54:17,348 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 23:54:17,348 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702907685] [2019-11-15 23:54:17,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 23:54:17,350 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:54:17,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 23:54:17,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:54:17,350 INFO L87 Difference]: Start difference. First operand 66 states and 72 transitions. Second operand 4 states. [2019-11-15 23:54:17,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:54:17,503 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2019-11-15 23:54:17,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 23:54:17,504 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-15 23:54:17,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:54:17,505 INFO L225 Difference]: With dead ends: 62 [2019-11-15 23:54:17,505 INFO L226 Difference]: Without dead ends: 62 [2019-11-15 23:54:17,506 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:54:17,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-11-15 23:54:17,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2019-11-15 23:54:17,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-11-15 23:54:17,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2019-11-15 23:54:17,517 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 9 [2019-11-15 23:54:17,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:54:17,518 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2019-11-15 23:54:17,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 23:54:17,518 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2019-11-15 23:54:17,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-11-15 23:54:17,521 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:54:17,521 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:54:17,522 INFO L410 AbstractCegarLoop]: === Iteration 3 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION]=== [2019-11-15 23:54:17,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:54:17,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1488025840, now seen corresponding path program 1 times [2019-11-15 23:54:17,522 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:54:17,523 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849351940] [2019-11-15 23:54:17,523 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:17,523 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:17,523 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:54:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:17,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:17,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:17,815 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-15 23:54:17,815 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849351940] [2019-11-15 23:54:17,815 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603445330] [2019-11-15 23:54:17,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:54:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:17,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-15 23:54:18,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:54:18,056 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-15 23:54:18,057 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:54:18,058 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 8 [2019-11-15 23:54:18,058 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213407074] [2019-11-15 23:54:18,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:54:18,061 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:54:18,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:54:18,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:54:18,063 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand 8 states. [2019-11-15 23:54:18,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:54:18,723 INFO L93 Difference]: Finished difference Result 118 states and 131 transitions. [2019-11-15 23:54:18,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-15 23:54:18,723 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 47 [2019-11-15 23:54:18,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:54:18,726 INFO L225 Difference]: With dead ends: 118 [2019-11-15 23:54:18,727 INFO L226 Difference]: Without dead ends: 118 [2019-11-15 23:54:18,727 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 54 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2019-11-15 23:54:18,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-11-15 23:54:18,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 69. [2019-11-15 23:54:18,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-11-15 23:54:18,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions. [2019-11-15 23:54:18,739 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 47 [2019-11-15 23:54:18,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:54:18,739 INFO L462 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions. [2019-11-15 23:54:18,739 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:54:18,739 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions. [2019-11-15 23:54:18,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-11-15 23:54:18,741 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:54:18,741 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:54:18,953 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:54:18,954 INFO L410 AbstractCegarLoop]: === Iteration 4 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION]=== [2019-11-15 23:54:18,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:54:18,954 INFO L82 PathProgramCache]: Analyzing trace with hash 493032989, now seen corresponding path program 1 times [2019-11-15 23:54:18,954 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:54:18,955 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419501727] [2019-11-15 23:54:18,955 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:18,955 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:18,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:54:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:19,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:19,111 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-11-15 23:54:19,111 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419501727] [2019-11-15 23:54:19,112 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:54:19,112 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 23:54:19,112 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355128567] [2019-11-15 23:54:19,112 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 23:54:19,112 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:54:19,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 23:54:19,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:54:19,113 INFO L87 Difference]: Start difference. First operand 69 states and 75 transitions. Second operand 7 states. [2019-11-15 23:54:19,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:54:19,511 INFO L93 Difference]: Finished difference Result 83 states and 91 transitions. [2019-11-15 23:54:19,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 23:54:19,513 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2019-11-15 23:54:19,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:54:19,515 INFO L225 Difference]: With dead ends: 83 [2019-11-15 23:54:19,515 INFO L226 Difference]: Without dead ends: 83 [2019-11-15 23:54:19,516 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-15 23:54:19,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-11-15 23:54:19,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 74. [2019-11-15 23:54:19,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-11-15 23:54:19,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 85 transitions. [2019-11-15 23:54:19,530 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 85 transitions. Word has length 50 [2019-11-15 23:54:19,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:54:19,530 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 85 transitions. [2019-11-15 23:54:19,531 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 23:54:19,531 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 85 transitions. [2019-11-15 23:54:19,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-11-15 23:54:19,535 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:54:19,535 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:54:19,536 INFO L410 AbstractCegarLoop]: === Iteration 5 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION]=== [2019-11-15 23:54:19,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:54:19,536 INFO L82 PathProgramCache]: Analyzing trace with hash 493032990, now seen corresponding path program 1 times [2019-11-15 23:54:19,536 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:54:19,536 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780938818] [2019-11-15 23:54:19,537 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:19,538 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:19,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:54:19,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:19,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:19,761 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-11-15 23:54:19,761 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780938818] [2019-11-15 23:54:19,761 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:54:19,761 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 23:54:19,761 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466418232] [2019-11-15 23:54:19,762 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 23:54:19,762 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:54:19,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 23:54:19,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:54:19,763 INFO L87 Difference]: Start difference. First operand 74 states and 85 transitions. Second operand 7 states. [2019-11-15 23:54:20,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:54:20,122 INFO L93 Difference]: Finished difference Result 89 states and 99 transitions. [2019-11-15 23:54:20,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 23:54:20,122 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2019-11-15 23:54:20,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:54:20,123 INFO L225 Difference]: With dead ends: 89 [2019-11-15 23:54:20,123 INFO L226 Difference]: Without dead ends: 89 [2019-11-15 23:54:20,124 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-15 23:54:20,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-11-15 23:54:20,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2019-11-15 23:54:20,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-11-15 23:54:20,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 89 transitions. [2019-11-15 23:54:20,131 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 89 transitions. Word has length 50 [2019-11-15 23:54:20,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:54:20,131 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 89 transitions. [2019-11-15 23:54:20,131 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 23:54:20,131 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 89 transitions. [2019-11-15 23:54:20,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-11-15 23:54:20,133 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:54:20,133 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:54:20,133 INFO L410 AbstractCegarLoop]: === Iteration 6 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION]=== [2019-11-15 23:54:20,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:54:20,133 INFO L82 PathProgramCache]: Analyzing trace with hash -782626401, now seen corresponding path program 1 times [2019-11-15 23:54:20,133 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:54:20,134 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897671721] [2019-11-15 23:54:20,134 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:20,134 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:20,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:54:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:20,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:20,287 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-11-15 23:54:20,287 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897671721] [2019-11-15 23:54:20,288 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:54:20,288 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-15 23:54:20,288 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297964419] [2019-11-15 23:54:20,288 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 23:54:20,289 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:54:20,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 23:54:20,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:54:20,289 INFO L87 Difference]: Start difference. First operand 79 states and 89 transitions. Second operand 9 states. [2019-11-15 23:54:20,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:54:20,819 INFO L93 Difference]: Finished difference Result 89 states and 98 transitions. [2019-11-15 23:54:20,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-15 23:54:20,820 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 55 [2019-11-15 23:54:20,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:54:20,821 INFO L225 Difference]: With dead ends: 89 [2019-11-15 23:54:20,821 INFO L226 Difference]: Without dead ends: 89 [2019-11-15 23:54:20,822 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2019-11-15 23:54:20,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-11-15 23:54:20,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2019-11-15 23:54:20,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-11-15 23:54:20,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 88 transitions. [2019-11-15 23:54:20,828 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 88 transitions. Word has length 55 [2019-11-15 23:54:20,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:54:20,828 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 88 transitions. [2019-11-15 23:54:20,828 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 23:54:20,828 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2019-11-15 23:54:20,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-11-15 23:54:20,833 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:54:20,833 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:54:20,833 INFO L410 AbstractCegarLoop]: === Iteration 7 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION]=== [2019-11-15 23:54:20,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:54:20,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1546121596, now seen corresponding path program 1 times [2019-11-15 23:54:20,833 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:54:20,834 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187532072] [2019-11-15 23:54:20,834 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:20,834 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:20,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:54:20,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:20,990 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-11-15 23:54:20,990 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187532072] [2019-11-15 23:54:20,990 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:54:20,990 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 23:54:20,990 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725255279] [2019-11-15 23:54:20,991 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:54:20,991 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:54:20,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:54:20,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:54:20,992 INFO L87 Difference]: Start difference. First operand 79 states and 88 transitions. Second operand 8 states. [2019-11-15 23:54:21,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:54:21,326 INFO L93 Difference]: Finished difference Result 89 states and 97 transitions. [2019-11-15 23:54:21,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:54:21,326 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2019-11-15 23:54:21,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:54:21,327 INFO L225 Difference]: With dead ends: 89 [2019-11-15 23:54:21,327 INFO L226 Difference]: Without dead ends: 89 [2019-11-15 23:54:21,328 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-11-15 23:54:21,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-11-15 23:54:21,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 84. [2019-11-15 23:54:21,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-11-15 23:54:21,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 94 transitions. [2019-11-15 23:54:21,334 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 94 transitions. Word has length 57 [2019-11-15 23:54:21,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:54:21,334 INFO L462 AbstractCegarLoop]: Abstraction has 84 states and 94 transitions. [2019-11-15 23:54:21,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:54:21,334 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 94 transitions. [2019-11-15 23:54:21,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-11-15 23:54:21,335 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:54:21,336 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:54:21,336 INFO L410 AbstractCegarLoop]: === Iteration 8 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION]=== [2019-11-15 23:54:21,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:54:21,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1546121597, now seen corresponding path program 1 times [2019-11-15 23:54:21,336 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:54:21,337 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204586707] [2019-11-15 23:54:21,337 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:21,337 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:21,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:54:21,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:21,623 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-11-15 23:54:21,623 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204586707] [2019-11-15 23:54:21,623 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:54:21,623 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-15 23:54:21,623 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033915921] [2019-11-15 23:54:21,624 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-15 23:54:21,624 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:54:21,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-15 23:54:21,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2019-11-15 23:54:21,624 INFO L87 Difference]: Start difference. First operand 84 states and 94 transitions. Second operand 12 states. [2019-11-15 23:54:22,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:54:22,422 INFO L93 Difference]: Finished difference Result 117 states and 128 transitions. [2019-11-15 23:54:22,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-15 23:54:22,423 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2019-11-15 23:54:22,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:54:22,424 INFO L225 Difference]: With dead ends: 117 [2019-11-15 23:54:22,424 INFO L226 Difference]: Without dead ends: 117 [2019-11-15 23:54:22,425 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2019-11-15 23:54:22,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2019-11-15 23:54:22,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 89. [2019-11-15 23:54:22,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-11-15 23:54:22,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 99 transitions. [2019-11-15 23:54:22,432 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 99 transitions. Word has length 57 [2019-11-15 23:54:22,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:54:22,433 INFO L462 AbstractCegarLoop]: Abstraction has 89 states and 99 transitions. [2019-11-15 23:54:22,433 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-15 23:54:22,433 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 99 transitions. [2019-11-15 23:54:22,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-11-15 23:54:22,434 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:54:22,434 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:54:22,434 INFO L410 AbstractCegarLoop]: === Iteration 9 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION]=== [2019-11-15 23:54:22,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:54:22,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1596651362, now seen corresponding path program 1 times [2019-11-15 23:54:22,435 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:54:22,435 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697119210] [2019-11-15 23:54:22,435 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:22,435 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:22,435 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:54:22,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:22,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:23,003 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 23 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-11-15 23:54:23,003 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697119210] [2019-11-15 23:54:23,004 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80621981] [2019-11-15 23:54:23,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:54:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:23,165 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 37 conjunts are in the unsatisfiable core [2019-11-15 23:54:23,174 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:54:23,317 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2019-11-15 23:54:23,318 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:54:23,326 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:54:23,326 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:54:23,326 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2019-11-15 23:54:23,418 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:54:23,419 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 52 [2019-11-15 23:54:23,420 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:54:23,441 INFO L567 ElimStorePlain]: treesize reduction 32, result has 38.5 percent of original size [2019-11-15 23:54:23,442 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:54:23,442 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:20 [2019-11-15 23:54:23,566 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-11-15 23:54:23,567 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:54:23,571 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:54:23,572 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-15 23:54:23,572 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:11 [2019-11-15 23:54:23,602 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-15 23:54:23,602 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:54:23,603 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 19 [2019-11-15 23:54:23,603 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496819934] [2019-11-15 23:54:23,604 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-15 23:54:23,604 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:54:23,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-15 23:54:23,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2019-11-15 23:54:23,606 INFO L87 Difference]: Start difference. First operand 89 states and 99 transitions. Second operand 20 states. [2019-11-15 23:54:24,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:54:24,960 INFO L93 Difference]: Finished difference Result 116 states and 128 transitions. [2019-11-15 23:54:24,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-15 23:54:24,960 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 57 [2019-11-15 23:54:24,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:54:24,962 INFO L225 Difference]: With dead ends: 116 [2019-11-15 23:54:24,962 INFO L226 Difference]: Without dead ends: 116 [2019-11-15 23:54:24,963 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 59 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=195, Invalid=927, Unknown=0, NotChecked=0, Total=1122 [2019-11-15 23:54:24,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-11-15 23:54:24,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 96. [2019-11-15 23:54:24,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-11-15 23:54:24,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 108 transitions. [2019-11-15 23:54:24,978 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 108 transitions. Word has length 57 [2019-11-15 23:54:24,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:54:24,978 INFO L462 AbstractCegarLoop]: Abstraction has 96 states and 108 transitions. [2019-11-15 23:54:24,978 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-15 23:54:24,978 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 108 transitions. [2019-11-15 23:54:24,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-11-15 23:54:24,980 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:54:24,980 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:54:25,197 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:54:25,197 INFO L410 AbstractCegarLoop]: === Iteration 10 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION]=== [2019-11-15 23:54:25,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:54:25,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1596651363, now seen corresponding path program 1 times [2019-11-15 23:54:25,198 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:54:25,198 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778196712] [2019-11-15 23:54:25,198 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:25,199 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:25,199 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:54:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:25,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:25,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:25,869 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 24 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-15 23:54:25,869 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778196712] [2019-11-15 23:54:25,869 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650575361] [2019-11-15 23:54:25,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:54:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:26,021 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 51 conjunts are in the unsatisfiable core [2019-11-15 23:54:26,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:54:26,048 INFO L375 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 [2019-11-15 23:54:26,048 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:54:26,053 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:54:26,053 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:54:26,054 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-15 23:54:26,192 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2019-11-15 23:54:26,192 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:54:26,199 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:54:26,202 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2019-11-15 23:54:26,202 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 23:54:26,210 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:54:26,210 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:54:26,210 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2019-11-15 23:54:26,295 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:54:26,296 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 52 [2019-11-15 23:54:26,297 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:54:26,316 INFO L567 ElimStorePlain]: treesize reduction 32, result has 54.3 percent of original size [2019-11-15 23:54:26,316 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-15 23:54:26,317 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:38 [2019-11-15 23:54:26,415 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-11-15 23:54:26,415 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:54:26,422 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:54:26,425 INFO L375 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 22 treesize of output 10 [2019-11-15 23:54:26,425 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 23:54:26,431 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:54:26,431 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-15 23:54:26,432 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:17 [2019-11-15 23:54:26,516 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-15 23:54:26,517 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:54:26,517 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 24 [2019-11-15 23:54:26,517 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399641903] [2019-11-15 23:54:26,518 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-15 23:54:26,518 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:54:26,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-15 23:54:26,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2019-11-15 23:54:26,519 INFO L87 Difference]: Start difference. First operand 96 states and 108 transitions. Second operand 25 states. [2019-11-15 23:54:28,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:54:28,535 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2019-11-15 23:54:28,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-15 23:54:28,535 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 57 [2019-11-15 23:54:28,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:54:28,536 INFO L225 Difference]: With dead ends: 120 [2019-11-15 23:54:28,536 INFO L226 Difference]: Without dead ends: 120 [2019-11-15 23:54:28,537 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 55 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=276, Invalid=1446, Unknown=0, NotChecked=0, Total=1722 [2019-11-15 23:54:28,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-11-15 23:54:28,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 99. [2019-11-15 23:54:28,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-11-15 23:54:28,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2019-11-15 23:54:28,547 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 57 [2019-11-15 23:54:28,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:54:28,548 INFO L462 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2019-11-15 23:54:28,548 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-15 23:54:28,548 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2019-11-15 23:54:28,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-11-15 23:54:28,549 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:54:28,550 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:54:28,753 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:54:28,753 INFO L410 AbstractCegarLoop]: === Iteration 11 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION]=== [2019-11-15 23:54:28,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:54:28,753 INFO L82 PathProgramCache]: Analyzing trace with hash -65719430, now seen corresponding path program 1 times [2019-11-15 23:54:28,753 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:54:28,754 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152732663] [2019-11-15 23:54:28,754 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:28,754 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:28,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:54:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:28,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:28,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:29,168 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 29 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-15 23:54:29,169 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152732663] [2019-11-15 23:54:29,169 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424682400] [2019-11-15 23:54:29,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:54:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:29,317 INFO L256 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 32 conjunts are in the unsatisfiable core [2019-11-15 23:54:29,320 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:54:29,370 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:54:29,384 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2019-11-15 23:54:29,384 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:54:29,390 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2019-11-15 23:54:29,391 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 23:54:29,409 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:54:29,409 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-11-15 23:54:29,410 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:43, output treesize:23 [2019-11-15 23:54:29,560 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-15 23:54:29,561 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:54:29,561 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14] total 23 [2019-11-15 23:54:29,561 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810563216] [2019-11-15 23:54:29,562 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-15 23:54:29,562 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:54:29,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-15 23:54:29,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2019-11-15 23:54:29,563 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand 23 states. [2019-11-15 23:54:30,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:54:30,484 INFO L93 Difference]: Finished difference Result 116 states and 127 transitions. [2019-11-15 23:54:30,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-15 23:54:30,484 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 62 [2019-11-15 23:54:30,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:54:30,485 INFO L225 Difference]: With dead ends: 116 [2019-11-15 23:54:30,485 INFO L226 Difference]: Without dead ends: 116 [2019-11-15 23:54:30,486 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 61 SyntacticMatches, 7 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=318, Invalid=1404, Unknown=0, NotChecked=0, Total=1722 [2019-11-15 23:54:30,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-11-15 23:54:30,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 98. [2019-11-15 23:54:30,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-11-15 23:54:30,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 108 transitions. [2019-11-15 23:54:30,492 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 108 transitions. Word has length 62 [2019-11-15 23:54:30,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:54:30,492 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 108 transitions. [2019-11-15 23:54:30,492 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-15 23:54:30,492 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 108 transitions. [2019-11-15 23:54:30,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-11-15 23:54:30,494 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:54:30,494 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:54:30,697 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:54:30,697 INFO L410 AbstractCegarLoop]: === Iteration 12 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION]=== [2019-11-15 23:54:30,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:54:30,698 INFO L82 PathProgramCache]: Analyzing trace with hash -996013928, now seen corresponding path program 1 times [2019-11-15 23:54:30,698 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:54:30,698 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494655434] [2019-11-15 23:54:30,698 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:30,698 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:30,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:54:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:30,851 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-11-15 23:54:30,852 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494655434] [2019-11-15 23:54:30,852 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:54:30,852 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 23:54:30,852 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612497615] [2019-11-15 23:54:30,853 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:54:30,853 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:54:30,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:54:30,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:54:30,853 INFO L87 Difference]: Start difference. First operand 98 states and 108 transitions. Second operand 8 states. [2019-11-15 23:54:31,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:54:31,129 INFO L93 Difference]: Finished difference Result 100 states and 108 transitions. [2019-11-15 23:54:31,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:54:31,130 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2019-11-15 23:54:31,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:54:31,131 INFO L225 Difference]: With dead ends: 100 [2019-11-15 23:54:31,131 INFO L226 Difference]: Without dead ends: 100 [2019-11-15 23:54:31,131 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-11-15 23:54:31,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-11-15 23:54:31,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 93. [2019-11-15 23:54:31,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-11-15 23:54:31,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 102 transitions. [2019-11-15 23:54:31,135 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 102 transitions. Word has length 64 [2019-11-15 23:54:31,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:54:31,135 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 102 transitions. [2019-11-15 23:54:31,135 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:54:31,135 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 102 transitions. [2019-11-15 23:54:31,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-11-15 23:54:31,136 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:54:31,137 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2019-11-15 23:54:31,137 INFO L410 AbstractCegarLoop]: === Iteration 13 === [insert_listErr4REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION]=== [2019-11-15 23:54:31,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:54:31,137 INFO L82 PathProgramCache]: Analyzing trace with hash -945484163, now seen corresponding path program 2 times [2019-11-15 23:54:31,137 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:54:31,137 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824942571] [2019-11-15 23:54:31,137 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:31,138 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:54:31,138 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:54:31,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:31,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:54:32,016 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 23 proven. 25 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-15 23:54:32,017 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824942571] [2019-11-15 23:54:32,017 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386998895] [2019-11-15 23:54:32,017 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:54:32,155 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 23:54:32,155 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 23:54:32,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 78 conjunts are in the unsatisfiable core [2019-11-15 23:54:32,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:54:32,303 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2019-11-15 23:54:32,304 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 23:54:32,310 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2019-11-15 23:54:32,311 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 23:54:32,353 INFO L567 ElimStorePlain]: treesize reduction 12, result has 82.6 percent of original size [2019-11-15 23:54:32,354 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-11-15 23:54:32,354 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:77, output treesize:57 [2019-11-15 23:54:32,435 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:54:32,458 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:54:32,659 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:54:32,659 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: |v_old(#valid)_AFTER_CALL_24| input size 31 context size 31 output size 31 at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:349) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:361) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-15 23:54:32,662 INFO L168 Benchmark]: Toolchain (without parser) took 17171.91 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 331.4 MB). Free memory was 939.3 MB in the beginning and 888.6 MB in the end (delta: 50.8 MB). Peak memory consumption was 382.1 MB. Max. memory is 11.5 GB. [2019-11-15 23:54:32,662 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:54:32,663 INFO L168 Benchmark]: CACSL2BoogieTranslator took 450.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -182.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-15 23:54:32,663 INFO L168 Benchmark]: Boogie Preprocessor took 57.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:54:32,664 INFO L168 Benchmark]: RCFGBuilder took 569.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:54:32,664 INFO L168 Benchmark]: TraceAbstraction took 16090.96 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 187.2 MB). Free memory was 1.1 GB in the beginning and 888.6 MB in the end (delta: 173.0 MB). Peak memory consumption was 360.1 MB. Max. memory is 11.5 GB. [2019-11-15 23:54:32,666 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 450.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -182.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 569.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16090.96 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 187.2 MB). Free memory was 1.1 GB in the beginning and 888.6 MB in the end (delta: 173.0 MB). Peak memory consumption was 360.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: |v_old(#valid)_AFTER_CALL_24| input size 31 context size 31 output size 31 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: |v_old(#valid)_AFTER_CALL_24| input size 31 context size 31 output size 31: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:349) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-15 23:54:34,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:54:34,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:54:34,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:54:34,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:54:34,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:54:34,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:54:34,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:54:34,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:54:34,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:54:34,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:54:34,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:54:34,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:54:34,922 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:54:34,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:54:34,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:54:34,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:54:34,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:54:34,927 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:54:34,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:54:34,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:54:34,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:54:34,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:54:34,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:54:34,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:54:34,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:54:34,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:54:34,938 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:54:34,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:54:34,939 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:54:34,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:54:34,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:54:34,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:54:34,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:54:34,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:54:34,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:54:34,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:54:34,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:54:34,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:54:34,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:54:34,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:54:34,946 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2019-11-15 23:54:34,958 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:54:34,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:54:34,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:54:34,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:54:34,960 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:54:34,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:54:34,960 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:54:34,961 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 23:54:34,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:54:34,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:54:34,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:54:34,962 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-15 23:54:34,962 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-15 23:54:34,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:54:34,962 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 23:54:34,962 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 23:54:34,963 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:54:34,963 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:54:34,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:54:34,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:54:34,964 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:54:34,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:54:34,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:54:34,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:54:34,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:54:34,965 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 23:54:34,965 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 23:54:34,965 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 23:54:34,965 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer 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-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> 8b9ae191666cff52a5646f600ca779e3fb8cdedc [2019-11-15 23:54:34,993 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:54:35,003 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:54:35,006 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:54:35,008 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:54:35,008 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:54:35,009 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/../../sv-benchmarks/c/list-properties/list_search-1.i [2019-11-15 23:54:35,058 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/data/d65a1cd20/7db2017966a044e7a53071337b15be0d/FLAG12fdac1eb [2019-11-15 23:54:35,481 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:54:35,481 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/sv-benchmarks/c/list-properties/list_search-1.i [2019-11-15 23:54:35,493 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/data/d65a1cd20/7db2017966a044e7a53071337b15be0d/FLAG12fdac1eb [2019-11-15 23:54:35,792 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/data/d65a1cd20/7db2017966a044e7a53071337b15be0d [2019-11-15 23:54:35,795 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:54:35,796 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-15 23:54:35,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:54:35,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:54:35,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:54:35,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:54:35" (1/1) ... [2019-11-15 23:54:35,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243cad27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:54:35, skipping insertion in model container [2019-11-15 23:54:35,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:54:35" (1/1) ... [2019-11-15 23:54:35,820 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:54:35,871 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:54:36,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:54:36,312 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:54:36,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:54:36,424 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:54:36,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:54:36 WrapperNode [2019-11-15 23:54:36,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:54:36,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:54:36,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:54:36,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:54:36,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:54:36" (1/1) ... [2019-11-15 23:54:36,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:54:36" (1/1) ... [2019-11-15 23:54:36,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:54:36" (1/1) ... [2019-11-15 23:54:36,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:54:36" (1/1) ... [2019-11-15 23:54:36,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:54:36" (1/1) ... [2019-11-15 23:54:36,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:54:36" (1/1) ... [2019-11-15 23:54:36,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:54:36" (1/1) ... [2019-11-15 23:54:36,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:54:36,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:54:36,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:54:36,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:54:36,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:54:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:54:36,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-15 23:54:36,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:54:36,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-15 23:54:36,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-15 23:54:36,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-15 23:54:36,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-15 23:54:36,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-15 23:54:36,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-15 23:54:36,561 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2019-11-15 23:54:36,561 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2019-11-15 23:54:36,561 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-15 23:54:36,562 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-15 23:54:36,562 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-15 23:54:36,562 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-15 23:54:36,562 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-15 23:54:36,562 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-15 23:54:36,563 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-15 23:54:36,563 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-15 23:54:36,563 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-15 23:54:36,563 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-15 23:54:36,563 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-15 23:54:36,564 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-15 23:54:36,564 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-15 23:54:36,564 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-15 23:54:36,564 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-15 23:54:36,564 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-15 23:54:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-15 23:54:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-15 23:54:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-15 23:54:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-15 23:54:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-15 23:54:36,566 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-15 23:54:36,566 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-15 23:54:36,566 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-15 23:54:36,566 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-15 23:54:36,566 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-15 23:54:36,567 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-15 23:54:36,567 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-15 23:54:36,567 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-15 23:54:36,567 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-15 23:54:36,567 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-15 23:54:36,567 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-15 23:54:36,568 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-15 23:54:36,568 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-15 23:54:36,568 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-15 23:54:36,568 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-15 23:54:36,568 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-15 23:54:36,569 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-15 23:54:36,569 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-15 23:54:36,569 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-15 23:54:36,569 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-15 23:54:36,569 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-15 23:54:36,570 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-15 23:54:36,570 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-15 23:54:36,570 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-15 23:54:36,570 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-15 23:54:36,570 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-15 23:54:36,571 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-15 23:54:36,571 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-15 23:54:36,571 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-15 23:54:36,571 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-15 23:54:36,571 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-15 23:54:36,572 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-15 23:54:36,572 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-15 23:54:36,572 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-15 23:54:36,572 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-15 23:54:36,572 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-15 23:54:36,573 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-15 23:54:36,573 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-15 23:54:36,573 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-15 23:54:36,573 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-15 23:54:36,574 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-15 23:54:36,574 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-15 23:54:36,574 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-15 23:54:36,574 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-15 23:54:36,574 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-15 23:54:36,575 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-15 23:54:36,575 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-15 23:54:36,575 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-15 23:54:36,575 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-15 23:54:36,576 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-15 23:54:36,576 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-15 23:54:36,576 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-15 23:54:36,576 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-15 23:54:36,576 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-15 23:54:36,576 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-15 23:54:36,577 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-15 23:54:36,577 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-15 23:54:36,577 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-15 23:54:36,577 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-15 23:54:36,577 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-15 23:54:36,578 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-15 23:54:36,578 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-15 23:54:36,578 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-15 23:54:36,578 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-15 23:54:36,578 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-15 23:54:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-15 23:54:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-15 23:54:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-15 23:54:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-15 23:54:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-15 23:54:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-15 23:54:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-15 23:54:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-15 23:54:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-15 23:54:36,580 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-15 23:54:36,580 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-15 23:54:36,580 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-15 23:54:36,580 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-15 23:54:36,580 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-15 23:54:36,580 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-15 23:54:36,580 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-15 23:54:36,580 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-15 23:54:36,580 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-15 23:54:36,581 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-15 23:54:36,581 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-15 23:54:36,581 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-15 23:54:36,581 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-15 23:54:36,581 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-15 23:54:36,581 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-15 23:54:36,581 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2019-11-15 23:54:36,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 23:54:36,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-15 23:54:36,582 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2019-11-15 23:54:36,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-15 23:54:36,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 23:54:36,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-15 23:54:36,583 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-15 23:54:36,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:54:36,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-15 23:54:36,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:54:37,148 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:54:37,148 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-11-15 23:54:37,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:54:37 BoogieIcfgContainer [2019-11-15 23:54:37,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:54:37,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:54:37,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:54:37,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:54:37,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:54:35" (1/3) ... [2019-11-15 23:54:37,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5be14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:54:37, skipping insertion in model container [2019-11-15 23:54:37,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:54:36" (2/3) ... [2019-11-15 23:54:37,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5be14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:54:37, skipping insertion in model container [2019-11-15 23:54:37,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:54:37" (3/3) ... [2019-11-15 23:54:37,158 INFO L109 eAbstractionObserver]: Analyzing ICFG list_search-1.i [2019-11-15 23:54:37,167 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:54:37,174 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2019-11-15 23:54:37,185 INFO L249 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2019-11-15 23:54:37,203 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:54:37,204 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-15 23:54:37,204 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:54:37,204 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:54:37,205 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:54:37,205 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:54:37,205 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:54:37,205 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:54:37,221 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2019-11-15 23:54:37,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 23:54:37,230 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:54:37,231 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:54:37,232 INFO L410 AbstractCegarLoop]: === Iteration 1 === [insert_listErr1REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr6ASSERT_VIOLATIONMEMORY_FREE, search_listErr3REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION]=== [2019-11-15 23:54:37,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:54:37,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1520208519, now seen corresponding path program 1 times [2019-11-15 23:54:37,247 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:54:37,248 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1791265821] [2019-11-15 23:54:37,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c450d7f5-80d7-4d93-a907-6b7a4d8ee17d/bin/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 23:54:37,487 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 23:54:37,488 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Sort C_DOUBLE not declared at de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:412) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.sort(WrapperScript.java:223) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.NonDeclaringTermTransferrer.transferSort(NonDeclaringTermTransferrer.java:111) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.DeclarableFunctionSymbol.defineOrDeclare(DeclarableFunctionSymbol.java:160) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:168) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.SmtFunctionsAndAxioms.transferSymbols(SmtFunctionsAndAxioms.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleTraceCheck.createExternalManagedScript(IpTcStrategyModuleTraceCheck.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCvc4.constructManagedScript(IpTcStrategyModuleCvc4.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-15 23:54:37,492 INFO L168 Benchmark]: Toolchain (without parser) took 1695.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 945.6 MB in the beginning and 1.0 GB in the end (delta: -59.0 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:54:37,493 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:54:37,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 627.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -126.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-15 23:54:37,494 INFO L168 Benchmark]: Boogie Preprocessor took 81.81 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:54:37,495 INFO L168 Benchmark]: RCFGBuilder took 642.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.9 MB). Peak memory consumption was 53.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:54:37,495 INFO L168 Benchmark]: TraceAbstraction took 339.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2019-11-15 23:54:37,498 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 627.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -126.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 81.81 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 642.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.9 MB). Peak memory consumption was 53.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 339.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Sort C_DOUBLE not declared de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Sort C_DOUBLE not declared: de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:412) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...