./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/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list_search-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/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/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list_search-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/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 [2019-10-22 09:01:08,075 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:08,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:08,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:08,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:08,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:08,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:08,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:08,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:08,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:08,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:08,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:08,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:08,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:08,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:08,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:08,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:08,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:08,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:08,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:08,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:08,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:08,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:08,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:08,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:08,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:08,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:08,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:08,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:08,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:08,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:08,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:08,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:08,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:08,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:08,109 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:08,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:08,110 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:08,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:08,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:08,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:08,112 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-10-22 09:01:08,127 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:08,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:08,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:08,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:08,128 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:08,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:08,128 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:01:08,128 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:01:08,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:01:08,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:01:08,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:08,129 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 09:01:08,129 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 09:01:08,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:01:08,130 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:01:08,130 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:08,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:08,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:08,130 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:01:08,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:01:08,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:01:08,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:08,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:01:08,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:01:08,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:01:08,132 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/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/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 [2019-10-22 09:01:08,157 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:08,167 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:08,170 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:08,171 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:08,172 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:08,172 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/bin/uautomizer/../../sv-benchmarks/c/list-properties/list_search-1.i [2019-10-22 09:01:08,218 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/bin/uautomizer/data/a68136d7e/8a6f1878247141a09d51a8e56a50f6a7/FLAG2ee68a9f4 [2019-10-22 09:01:08,664 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:08,664 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/sv-benchmarks/c/list-properties/list_search-1.i [2019-10-22 09:01:08,676 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/bin/uautomizer/data/a68136d7e/8a6f1878247141a09d51a8e56a50f6a7/FLAG2ee68a9f4 [2019-10-22 09:01:08,996 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/bin/uautomizer/data/a68136d7e/8a6f1878247141a09d51a8e56a50f6a7 [2019-10-22 09:01:08,998 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:08,999 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 09:01:09,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:09,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:09,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:09,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:08" (1/1) ... [2019-10-22 09:01:09,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@798bea11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:09, skipping insertion in model container [2019-10-22 09:01:09,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:08" (1/1) ... [2019-10-22 09:01:09,017 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:09,061 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:09,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:09,405 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:09,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:09,484 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:09,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:09 WrapperNode [2019-10-22 09:01:09,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:09,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:09,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:09,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:09,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:09" (1/1) ... [2019-10-22 09:01:09,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:09" (1/1) ... [2019-10-22 09:01:09,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:09" (1/1) ... [2019-10-22 09:01:09,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:09" (1/1) ... [2019-10-22 09:01:09,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:09" (1/1) ... [2019-10-22 09:01:09,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:09" (1/1) ... [2019-10-22 09:01:09,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:09" (1/1) ... [2019-10-22 09:01:09,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:09,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:09,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:09,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:09,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/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 [2019-10-22 09:01:09,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 09:01:09,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:09,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-22 09:01:09,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 09:01:09,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 09:01:09,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-22 09:01:09,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-22 09:01:09,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-22 09:01:09,613 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2019-10-22 09:01:09,613 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2019-10-22 09:01:09,613 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 09:01:09,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 09:01:09,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-22 09:01:09,614 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 09:01:09,614 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 09:01:09,614 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 09:01:09,614 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 09:01:09,614 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 09:01:09,614 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 09:01:09,614 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 09:01:09,615 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 09:01:09,615 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 09:01:09,616 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 09:01:09,616 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 09:01:09,616 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 09:01:09,616 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 09:01:09,616 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 09:01:09,616 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 09:01:09,617 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 09:01:09,617 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 09:01:09,617 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 09:01:09,617 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-22 09:01:09,617 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-22 09:01:09,617 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-22 09:01:09,617 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 09:01:09,617 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 09:01:09,618 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 09:01:09,618 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 09:01:09,618 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 09:01:09,618 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 09:01:09,620 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 09:01:09,620 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 09:01:09,620 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 09:01:09,620 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 09:01:09,621 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 09:01:09,621 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 09:01:09,621 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 09:01:09,621 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 09:01:09,621 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 09:01:09,621 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 09:01:09,621 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 09:01:09,621 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 09:01:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 09:01:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 09:01:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 09:01:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 09:01:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 09:01:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 09:01:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 09:01:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 09:01:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 09:01:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 09:01:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 09:01:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 09:01:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 09:01:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 09:01:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 09:01:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 09:01:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 09:01:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 09:01:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 09:01:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 09:01:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 09:01:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 09:01:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 09:01:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 09:01:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 09:01:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 09:01:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 09:01:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 09:01:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 09:01:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 09:01:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 09:01:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 09:01:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 09:01:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 09:01:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 09:01:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 09:01:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 09:01:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 09:01:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 09:01:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 09:01:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 09:01:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 09:01:09,626 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 09:01:09,626 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 09:01:09,626 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 09:01:09,626 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 09:01:09,626 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 09:01:09,626 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 09:01:09,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 09:01:09,629 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 09:01:09,629 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 09:01:09,629 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 09:01:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 09:01:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 09:01:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 09:01:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 09:01:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 09:01:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 09:01:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 09:01:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 09:01:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 09:01:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 09:01:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 09:01:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 09:01:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 09:01:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 09:01:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 09:01:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 09:01:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2019-10-22 09:01:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:01:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 09:01:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2019-10-22 09:01:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 09:01:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:01:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 09:01:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 09:01:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:01:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 09:01:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:10,173 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:10,174 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-22 09:01:10,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:10 BoogieIcfgContainer [2019-10-22 09:01:10,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:10,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:01:10,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:01:10,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:01:10,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:01:08" (1/3) ... [2019-10-22 09:01:10,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff26c0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:10, skipping insertion in model container [2019-10-22 09:01:10,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:09" (2/3) ... [2019-10-22 09:01:10,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff26c0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:10, skipping insertion in model container [2019-10-22 09:01:10,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:10" (3/3) ... [2019-10-22 09:01:10,187 INFO L109 eAbstractionObserver]: Analyzing ICFG list_search-1.i [2019-10-22 09:01:10,196 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:01:10,204 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2019-10-22 09:01:10,214 INFO L249 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2019-10-22 09:01:10,231 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:01:10,231 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 09:01:10,231 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:01:10,231 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:10,232 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:10,232 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:01:10,232 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:10,232 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:01:10,249 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2019-10-22 09:01:10,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 09:01:10,260 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:10,261 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:10,266 INFO L410 AbstractCegarLoop]: === Iteration 1 === [insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION]=== [2019-10-22 09:01:10,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:10,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1520208519, now seen corresponding path program 1 times [2019-10-22 09:01:10,280 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:10,281 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670796702] [2019-10-22 09:01:10,281 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:10,281 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:10,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:10,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:10,452 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670796702] [2019-10-22 09:01:10,452 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:10,453 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:01:10,453 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632952996] [2019-10-22 09:01:10,457 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:01:10,457 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:10,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:01:10,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:01:10,472 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 4 states. [2019-10-22 09:01:10,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:10,687 INFO L93 Difference]: Finished difference Result 70 states and 76 transitions. [2019-10-22 09:01:10,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:01:10,689 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-10-22 09:01:10,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:10,698 INFO L225 Difference]: With dead ends: 70 [2019-10-22 09:01:10,698 INFO L226 Difference]: Without dead ends: 66 [2019-10-22 09:01:10,699 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 [2019-10-22 09:01:10,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-10-22 09:01:10,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2019-10-22 09:01:10,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-10-22 09:01:10,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 72 transitions. [2019-10-22 09:01:10,737 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 72 transitions. Word has length 9 [2019-10-22 09:01:10,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:10,738 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 72 transitions. [2019-10-22 09:01:10,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:01:10,738 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 72 transitions. [2019-10-22 09:01:10,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 09:01:10,739 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:10,739 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:10,739 INFO L410 AbstractCegarLoop]: === Iteration 2 === [insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION]=== [2019-10-22 09:01:10,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:10,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1520208520, now seen corresponding path program 1 times [2019-10-22 09:01:10,740 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:10,740 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955415368] [2019-10-22 09:01:10,740 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:10,740 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:10,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:10,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:10,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:10,820 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955415368] [2019-10-22 09:01:10,822 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:10,822 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:01:10,822 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399335737] [2019-10-22 09:01:10,823 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:01:10,823 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:10,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:01:10,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:01:10,824 INFO L87 Difference]: Start difference. First operand 66 states and 72 transitions. Second operand 4 states. [2019-10-22 09:01:10,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:10,943 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2019-10-22 09:01:10,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:01:10,944 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-10-22 09:01:10,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:10,945 INFO L225 Difference]: With dead ends: 62 [2019-10-22 09:01:10,945 INFO L226 Difference]: Without dead ends: 62 [2019-10-22 09:01:10,945 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 [2019-10-22 09:01:10,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-10-22 09:01:10,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2019-10-22 09:01:10,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-10-22 09:01:10,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2019-10-22 09:01:10,951 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 9 [2019-10-22 09:01:10,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:10,952 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2019-10-22 09:01:10,952 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:01:10,952 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2019-10-22 09:01:10,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-22 09:01:10,953 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:10,953 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] [2019-10-22 09:01:10,953 INFO L410 AbstractCegarLoop]: === Iteration 3 === [insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION]=== [2019-10-22 09:01:10,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:10,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1488025840, now seen corresponding path program 1 times [2019-10-22 09:01:10,954 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:10,954 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190132745] [2019-10-22 09:01:10,954 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:10,954 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:10,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:11,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:11,212 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-22 09:01:11,213 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190132745] [2019-10-22 09:01:11,213 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283717432] [2019-10-22 09:01:11,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/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 [2019-10-22 09:01:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:11,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-22 09:01:11,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:11,498 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-22 09:01:11,498 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:01:11,499 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 8 [2019-10-22 09:01:11,499 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987678765] [2019-10-22 09:01:11,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 09:01:11,500 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:11,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 09:01:11,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:01:11,500 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand 8 states. [2019-10-22 09:01:12,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:12,007 INFO L93 Difference]: Finished difference Result 118 states and 131 transitions. [2019-10-22 09:01:12,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-22 09:01:12,008 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 47 [2019-10-22 09:01:12,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:12,009 INFO L225 Difference]: With dead ends: 118 [2019-10-22 09:01:12,009 INFO L226 Difference]: Without dead ends: 118 [2019-10-22 09:01:12,010 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 [2019-10-22 09:01:12,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-10-22 09:01:12,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 69. [2019-10-22 09:01:12,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-10-22 09:01:12,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions. [2019-10-22 09:01:12,028 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 47 [2019-10-22 09:01:12,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:12,028 INFO L462 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions. [2019-10-22 09:01:12,029 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 09:01:12,029 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions. [2019-10-22 09:01:12,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-22 09:01:12,030 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:12,030 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] [2019-10-22 09:01:12,233 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:01:12,234 INFO L410 AbstractCegarLoop]: === Iteration 4 === [insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION]=== [2019-10-22 09:01:12,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:12,234 INFO L82 PathProgramCache]: Analyzing trace with hash 493032989, now seen corresponding path program 1 times [2019-10-22 09:01:12,234 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:12,235 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375702751] [2019-10-22 09:01:12,235 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:12,235 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:12,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:12,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:12,387 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-22 09:01:12,388 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375702751] [2019-10-22 09:01:12,388 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:12,388 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:01:12,388 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062648958] [2019-10-22 09:01:12,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:01:12,389 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:12,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:01:12,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:01:12,390 INFO L87 Difference]: Start difference. First operand 69 states and 75 transitions. Second operand 7 states. [2019-10-22 09:01:12,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:12,756 INFO L93 Difference]: Finished difference Result 83 states and 91 transitions. [2019-10-22 09:01:12,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 09:01:12,757 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2019-10-22 09:01:12,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:12,759 INFO L225 Difference]: With dead ends: 83 [2019-10-22 09:01:12,759 INFO L226 Difference]: Without dead ends: 83 [2019-10-22 09:01:12,759 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 [2019-10-22 09:01:12,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-10-22 09:01:12,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 74. [2019-10-22 09:01:12,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-10-22 09:01:12,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 85 transitions. [2019-10-22 09:01:12,767 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 85 transitions. Word has length 50 [2019-10-22 09:01:12,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:12,767 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 85 transitions. [2019-10-22 09:01:12,767 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:01:12,767 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 85 transitions. [2019-10-22 09:01:12,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-22 09:01:12,769 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:12,769 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] [2019-10-22 09:01:12,769 INFO L410 AbstractCegarLoop]: === Iteration 5 === [insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION]=== [2019-10-22 09:01:12,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:12,770 INFO L82 PathProgramCache]: Analyzing trace with hash 493032990, now seen corresponding path program 1 times [2019-10-22 09:01:12,770 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:12,770 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560018066] [2019-10-22 09:01:12,770 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:12,770 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:12,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:12,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:12,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:12,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:12,958 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-22 09:01:12,959 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560018066] [2019-10-22 09:01:12,959 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:12,960 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:01:12,960 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364096673] [2019-10-22 09:01:12,960 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:01:12,960 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:12,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:01:12,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:01:12,961 INFO L87 Difference]: Start difference. First operand 74 states and 85 transitions. Second operand 7 states. [2019-10-22 09:01:13,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:13,299 INFO L93 Difference]: Finished difference Result 89 states and 99 transitions. [2019-10-22 09:01:13,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 09:01:13,299 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2019-10-22 09:01:13,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:13,300 INFO L225 Difference]: With dead ends: 89 [2019-10-22 09:01:13,300 INFO L226 Difference]: Without dead ends: 89 [2019-10-22 09:01:13,301 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 [2019-10-22 09:01:13,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-10-22 09:01:13,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2019-10-22 09:01:13,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-10-22 09:01:13,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 89 transitions. [2019-10-22 09:01:13,307 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 89 transitions. Word has length 50 [2019-10-22 09:01:13,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:13,307 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 89 transitions. [2019-10-22 09:01:13,308 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:01:13,308 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 89 transitions. [2019-10-22 09:01:13,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-22 09:01:13,309 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:13,309 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] [2019-10-22 09:01:13,309 INFO L410 AbstractCegarLoop]: === Iteration 6 === [insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION]=== [2019-10-22 09:01:13,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:13,309 INFO L82 PathProgramCache]: Analyzing trace with hash -782626401, now seen corresponding path program 1 times [2019-10-22 09:01:13,310 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:13,310 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660994284] [2019-10-22 09:01:13,310 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:13,310 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:13,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:13,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:13,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:13,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:13,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:13,468 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-22 09:01:13,468 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660994284] [2019-10-22 09:01:13,468 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:13,468 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-22 09:01:13,469 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080711707] [2019-10-22 09:01:13,469 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 09:01:13,469 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:13,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 09:01:13,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:01:13,470 INFO L87 Difference]: Start difference. First operand 79 states and 89 transitions. Second operand 9 states. [2019-10-22 09:01:13,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:13,944 INFO L93 Difference]: Finished difference Result 89 states and 98 transitions. [2019-10-22 09:01:13,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-22 09:01:13,944 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 55 [2019-10-22 09:01:13,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:13,945 INFO L225 Difference]: With dead ends: 89 [2019-10-22 09:01:13,945 INFO L226 Difference]: Without dead ends: 89 [2019-10-22 09:01:13,946 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2019-10-22 09:01:13,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-10-22 09:01:13,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2019-10-22 09:01:13,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-10-22 09:01:13,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 88 transitions. [2019-10-22 09:01:13,951 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 88 transitions. Word has length 55 [2019-10-22 09:01:13,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:13,952 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 88 transitions. [2019-10-22 09:01:13,952 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 09:01:13,952 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2019-10-22 09:01:13,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-22 09:01:13,953 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:13,953 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] [2019-10-22 09:01:13,953 INFO L410 AbstractCegarLoop]: === Iteration 7 === [insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION]=== [2019-10-22 09:01:13,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:13,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1546121596, now seen corresponding path program 1 times [2019-10-22 09:01:13,954 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:13,954 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780671538] [2019-10-22 09:01:13,954 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:13,954 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:13,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,077 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-22 09:01:14,077 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780671538] [2019-10-22 09:01:14,077 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:14,077 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 09:01:14,077 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527706173] [2019-10-22 09:01:14,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 09:01:14,078 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:14,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 09:01:14,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:01:14,079 INFO L87 Difference]: Start difference. First operand 79 states and 88 transitions. Second operand 8 states. [2019-10-22 09:01:14,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:14,353 INFO L93 Difference]: Finished difference Result 89 states and 97 transitions. [2019-10-22 09:01:14,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:01:14,354 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2019-10-22 09:01:14,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:14,355 INFO L225 Difference]: With dead ends: 89 [2019-10-22 09:01:14,355 INFO L226 Difference]: Without dead ends: 89 [2019-10-22 09:01:14,355 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 [2019-10-22 09:01:14,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-10-22 09:01:14,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 84. [2019-10-22 09:01:14,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-10-22 09:01:14,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 94 transitions. [2019-10-22 09:01:14,368 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 94 transitions. Word has length 57 [2019-10-22 09:01:14,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:14,368 INFO L462 AbstractCegarLoop]: Abstraction has 84 states and 94 transitions. [2019-10-22 09:01:14,368 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 09:01:14,368 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 94 transitions. [2019-10-22 09:01:14,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-22 09:01:14,369 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:14,369 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] [2019-10-22 09:01:14,370 INFO L410 AbstractCegarLoop]: === Iteration 8 === [insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION]=== [2019-10-22 09:01:14,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:14,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1546121597, now seen corresponding path program 1 times [2019-10-22 09:01:14,375 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:14,375 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290775755] [2019-10-22 09:01:14,376 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:14,376 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:14,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:14,616 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-22 09:01:14,616 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290775755] [2019-10-22 09:01:14,616 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:14,616 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-22 09:01:14,616 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076383461] [2019-10-22 09:01:14,617 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-22 09:01:14,617 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:14,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-22 09:01:14,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2019-10-22 09:01:14,618 INFO L87 Difference]: Start difference. First operand 84 states and 94 transitions. Second operand 12 states. [2019-10-22 09:01:15,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:15,311 INFO L93 Difference]: Finished difference Result 117 states and 128 transitions. [2019-10-22 09:01:15,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-22 09:01:15,311 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2019-10-22 09:01:15,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:15,312 INFO L225 Difference]: With dead ends: 117 [2019-10-22 09:01:15,312 INFO L226 Difference]: Without dead ends: 117 [2019-10-22 09:01:15,313 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2019-10-22 09:01:15,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2019-10-22 09:01:15,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 89. [2019-10-22 09:01:15,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-10-22 09:01:15,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 99 transitions. [2019-10-22 09:01:15,327 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 99 transitions. Word has length 57 [2019-10-22 09:01:15,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:15,328 INFO L462 AbstractCegarLoop]: Abstraction has 89 states and 99 transitions. [2019-10-22 09:01:15,329 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-22 09:01:15,329 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 99 transitions. [2019-10-22 09:01:15,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-22 09:01:15,330 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:15,330 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] [2019-10-22 09:01:15,330 INFO L410 AbstractCegarLoop]: === Iteration 9 === [insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION]=== [2019-10-22 09:01:15,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:15,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1596651362, now seen corresponding path program 1 times [2019-10-22 09:01:15,331 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:15,331 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356648727] [2019-10-22 09:01:15,331 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:15,331 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:15,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:15,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:15,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:15,752 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 23 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-22 09:01:15,752 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356648727] [2019-10-22 09:01:15,752 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930295982] [2019-10-22 09:01:15,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/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 [2019-10-22 09:01:15,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:15,866 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 37 conjunts are in the unsatisfiable core [2019-10-22 09:01:15,870 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:15,979 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 [2019-10-22 09:01:15,982 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:01:15,989 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:01:15,989 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:01:15,989 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2019-10-22 09:01:16,069 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:01:16,070 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 [2019-10-22 09:01:16,071 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:01:16,087 INFO L567 ElimStorePlain]: treesize reduction 32, result has 38.5 percent of original size [2019-10-22 09:01:16,087 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:01:16,088 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:20 [2019-10-22 09:01:16,182 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 [2019-10-22 09:01:16,182 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:01:16,186 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:01:16,187 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. [2019-10-22 09:01:16,187 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:11 [2019-10-22 09:01:16,209 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-22 09:01:16,210 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:01:16,210 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 19 [2019-10-22 09:01:16,211 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323032311] [2019-10-22 09:01:16,211 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-22 09:01:16,212 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:16,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-22 09:01:16,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2019-10-22 09:01:16,213 INFO L87 Difference]: Start difference. First operand 89 states and 99 transitions. Second operand 20 states. [2019-10-22 09:01:17,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:17,353 INFO L93 Difference]: Finished difference Result 116 states and 128 transitions. [2019-10-22 09:01:17,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-22 09:01:17,354 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 57 [2019-10-22 09:01:17,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:17,355 INFO L225 Difference]: With dead ends: 116 [2019-10-22 09:01:17,355 INFO L226 Difference]: Without dead ends: 116 [2019-10-22 09:01:17,356 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 59 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=195, Invalid=927, Unknown=0, NotChecked=0, Total=1122 [2019-10-22 09:01:17,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-10-22 09:01:17,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 96. [2019-10-22 09:01:17,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-10-22 09:01:17,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 108 transitions. [2019-10-22 09:01:17,362 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 108 transitions. Word has length 57 [2019-10-22 09:01:17,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:17,362 INFO L462 AbstractCegarLoop]: Abstraction has 96 states and 108 transitions. [2019-10-22 09:01:17,362 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-22 09:01:17,363 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 108 transitions. [2019-10-22 09:01:17,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-22 09:01:17,364 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:17,364 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] [2019-10-22 09:01:17,564 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:01:17,565 INFO L410 AbstractCegarLoop]: === Iteration 10 === [insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION]=== [2019-10-22 09:01:17,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:17,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1596651363, now seen corresponding path program 1 times [2019-10-22 09:01:17,565 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:17,565 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297302777] [2019-10-22 09:01:17,565 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:17,565 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:17,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:17,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:18,104 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 24 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 09:01:18,105 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297302777] [2019-10-22 09:01:18,105 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200019211] [2019-10-22 09:01:18,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/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 [2019-10-22 09:01:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:18,243 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 51 conjunts are in the unsatisfiable core [2019-10-22 09:01:18,246 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:18,267 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 [2019-10-22 09:01:18,267 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:01:18,274 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:01:18,274 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:01:18,274 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-10-22 09:01:18,390 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 13 treesize of output 9 [2019-10-22 09:01:18,391 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:01:18,397 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:01:18,404 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 [2019-10-22 09:01:18,404 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:01:18,410 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:01:18,410 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:01:18,411 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2019-10-22 09:01:18,476 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:01:18,477 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 [2019-10-22 09:01:18,477 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:01:18,493 INFO L567 ElimStorePlain]: treesize reduction 32, result has 54.3 percent of original size [2019-10-22 09:01:18,493 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:01:18,493 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:38 [2019-10-22 09:01:18,578 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 [2019-10-22 09:01:18,578 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:01:18,584 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:01:18,586 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 [2019-10-22 09:01:18,587 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:01:18,592 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:01:18,592 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. [2019-10-22 09:01:18,592 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:17 [2019-10-22 09:01:18,650 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-22 09:01:18,650 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:01:18,651 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 24 [2019-10-22 09:01:18,651 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010891286] [2019-10-22 09:01:18,651 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-22 09:01:18,651 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:18,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-22 09:01:18,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2019-10-22 09:01:18,652 INFO L87 Difference]: Start difference. First operand 96 states and 108 transitions. Second operand 25 states. [2019-10-22 09:01:20,038 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2019-10-22 09:01:20,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:20,431 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2019-10-22 09:01:20,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-22 09:01:20,439 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 57 [2019-10-22 09:01:20,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:20,439 INFO L225 Difference]: With dead ends: 120 [2019-10-22 09:01:20,439 INFO L226 Difference]: Without dead ends: 120 [2019-10-22 09:01:20,440 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 55 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=276, Invalid=1446, Unknown=0, NotChecked=0, Total=1722 [2019-10-22 09:01:20,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-10-22 09:01:20,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 99. [2019-10-22 09:01:20,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-10-22 09:01:20,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2019-10-22 09:01:20,445 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 57 [2019-10-22 09:01:20,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:20,445 INFO L462 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2019-10-22 09:01:20,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-22 09:01:20,446 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2019-10-22 09:01:20,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-10-22 09:01:20,447 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:20,447 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] [2019-10-22 09:01:20,647 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:01:20,648 INFO L410 AbstractCegarLoop]: === Iteration 11 === [insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION]=== [2019-10-22 09:01:20,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:20,648 INFO L82 PathProgramCache]: Analyzing trace with hash -65719430, now seen corresponding path program 1 times [2019-10-22 09:01:20,648 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:20,648 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285482827] [2019-10-22 09:01:20,648 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:20,648 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:20,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:20,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:20,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:20,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:21,002 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 29 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 09:01:21,003 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285482827] [2019-10-22 09:01:21,003 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740839832] [2019-10-22 09:01:21,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/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 [2019-10-22 09:01:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:21,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 32 conjunts are in the unsatisfiable core [2019-10-22 09:01:21,103 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:21,133 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:01:21,140 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 [2019-10-22 09:01:21,141 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:01:21,149 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 [2019-10-22 09:01:21,150 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:01:21,160 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:01:21,160 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-10-22 09:01:21,161 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:43, output treesize:23 [2019-10-22 09:01:21,313 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-22 09:01:21,313 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:01:21,313 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14] total 23 [2019-10-22 09:01:21,313 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523888524] [2019-10-22 09:01:21,314 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-22 09:01:21,314 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:21,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-22 09:01:21,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2019-10-22 09:01:21,315 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand 23 states. [2019-10-22 09:01:22,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:22,049 INFO L93 Difference]: Finished difference Result 116 states and 127 transitions. [2019-10-22 09:01:22,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-22 09:01:22,050 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 62 [2019-10-22 09:01:22,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:22,050 INFO L225 Difference]: With dead ends: 116 [2019-10-22 09:01:22,050 INFO L226 Difference]: Without dead ends: 116 [2019-10-22 09:01:22,051 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 61 SyntacticMatches, 7 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=318, Invalid=1404, Unknown=0, NotChecked=0, Total=1722 [2019-10-22 09:01:22,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-10-22 09:01:22,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 98. [2019-10-22 09:01:22,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-10-22 09:01:22,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 108 transitions. [2019-10-22 09:01:22,055 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 108 transitions. Word has length 62 [2019-10-22 09:01:22,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:22,056 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 108 transitions. [2019-10-22 09:01:22,056 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-22 09:01:22,056 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 108 transitions. [2019-10-22 09:01:22,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-22 09:01:22,056 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:22,057 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] [2019-10-22 09:01:22,257 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:01:22,258 INFO L410 AbstractCegarLoop]: === Iteration 12 === [insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION]=== [2019-10-22 09:01:22,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:22,258 INFO L82 PathProgramCache]: Analyzing trace with hash -996013928, now seen corresponding path program 1 times [2019-10-22 09:01:22,258 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:22,258 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694613541] [2019-10-22 09:01:22,258 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:22,258 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:22,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:22,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:22,413 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-22 09:01:22,414 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694613541] [2019-10-22 09:01:22,414 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:22,414 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 09:01:22,414 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231698610] [2019-10-22 09:01:22,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 09:01:22,417 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:22,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 09:01:22,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:01:22,418 INFO L87 Difference]: Start difference. First operand 98 states and 108 transitions. Second operand 8 states. [2019-10-22 09:01:22,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:22,623 INFO L93 Difference]: Finished difference Result 100 states and 108 transitions. [2019-10-22 09:01:22,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:01:22,623 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2019-10-22 09:01:22,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:22,624 INFO L225 Difference]: With dead ends: 100 [2019-10-22 09:01:22,624 INFO L226 Difference]: Without dead ends: 100 [2019-10-22 09:01:22,624 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 [2019-10-22 09:01:22,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-10-22 09:01:22,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 93. [2019-10-22 09:01:22,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-10-22 09:01:22,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 102 transitions. [2019-10-22 09:01:22,630 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 102 transitions. Word has length 64 [2019-10-22 09:01:22,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:22,630 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 102 transitions. [2019-10-22 09:01:22,630 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 09:01:22,630 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 102 transitions. [2019-10-22 09:01:22,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-22 09:01:22,631 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:22,631 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] [2019-10-22 09:01:22,631 INFO L410 AbstractCegarLoop]: === Iteration 13 === [insert_listErr0REQUIRES_VIOLATION, insert_listErr5REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION]=== [2019-10-22 09:01:22,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:22,632 INFO L82 PathProgramCache]: Analyzing trace with hash -945484163, now seen corresponding path program 2 times [2019-10-22 09:01:22,632 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:22,632 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257103956] [2019-10-22 09:01:22,632 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:22,632 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:22,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:23,418 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 23 proven. 25 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-22 09:01:23,419 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257103956] [2019-10-22 09:01:23,419 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189618184] [2019-10-22 09:01:23,419 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/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 [2019-10-22 09:01:23,540 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-22 09:01:23,540 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 09:01:23,542 INFO L256 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 78 conjunts are in the unsatisfiable core [2019-10-22 09:01:23,546 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:23,640 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 [2019-10-22 09:01:23,640 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:01:23,647 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 [2019-10-22 09:01:23,647 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:01:23,703 INFO L567 ElimStorePlain]: treesize reduction 12, result has 82.6 percent of original size [2019-10-22 09:01:23,703 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-10-22 09:01:23,703 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:77, output treesize:57 [2019-10-22 09:01:23,775 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:01:23,788 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:01:23,989 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:01:23,989 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) [2019-10-22 09:01:23,993 INFO L168 Benchmark]: Toolchain (without parser) took 14994.71 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 382.7 MB). Free memory was 943.2 MB in the beginning and 1.3 GB in the end (delta: -366.9 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:23,994 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:23,994 INFO L168 Benchmark]: CACSL2BoogieTranslator took 485.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -156.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:23,994 INFO L168 Benchmark]: Boogie Preprocessor took 51.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:23,995 INFO L168 Benchmark]: RCFGBuilder took 640.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.0 MB). Peak memory consumption was 59.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:23,995 INFO L168 Benchmark]: TraceAbstraction took 13812.78 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 252.2 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -269.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:23,997 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 485.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -156.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 640.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.0 MB). Peak memory consumption was 59.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13812.78 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 252.2 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -269.1 MB). There was no memory consumed. 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 [2019-10-22 09:01:26,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:26,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:26,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:26,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:26,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:26,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:26,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:26,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:26,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:26,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:26,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:26,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:26,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:26,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:26,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:26,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:26,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:26,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:26,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:26,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:26,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:26,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:26,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:26,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:26,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:26,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:26,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:26,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:26,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:26,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:26,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:26,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:26,122 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:26,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:26,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:26,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:26,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:26,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:26,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:26,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:26,126 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2019-10-22 09:01:26,137 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:26,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:26,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:26,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:26,139 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:26,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:26,139 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:01:26,140 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:01:26,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:01:26,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:01:26,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:26,140 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 09:01:26,140 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 09:01:26,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:01:26,141 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 09:01:26,141 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 09:01:26,141 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:01:26,141 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:26,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:26,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:26,142 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:01:26,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:01:26,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:01:26,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:26,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:01:26,143 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 09:01:26,143 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 09:01:26,143 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 09:01:26,143 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/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/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 [2019-10-22 09:01:26,169 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:26,179 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:26,182 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:26,184 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:26,184 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:26,184 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/bin/uautomizer/../../sv-benchmarks/c/list-properties/list_search-1.i [2019-10-22 09:01:26,236 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/bin/uautomizer/data/bc410f100/2258dc7879544b7e90c46ac5f16eb827/FLAG345f68152 [2019-10-22 09:01:26,689 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:26,690 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/sv-benchmarks/c/list-properties/list_search-1.i [2019-10-22 09:01:26,705 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/bin/uautomizer/data/bc410f100/2258dc7879544b7e90c46ac5f16eb827/FLAG345f68152 [2019-10-22 09:01:27,052 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/bin/uautomizer/data/bc410f100/2258dc7879544b7e90c46ac5f16eb827 [2019-10-22 09:01:27,055 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:27,056 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 09:01:27,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:27,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:27,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:27,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:27" (1/1) ... [2019-10-22 09:01:27,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55e3f64e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:27, skipping insertion in model container [2019-10-22 09:01:27,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:27" (1/1) ... [2019-10-22 09:01:27,071 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:27,104 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:27,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:27,451 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:27,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:27,545 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:27,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:27 WrapperNode [2019-10-22 09:01:27,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:27,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:27,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:27,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:27,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:27" (1/1) ... [2019-10-22 09:01:27,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:27" (1/1) ... [2019-10-22 09:01:27,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:27" (1/1) ... [2019-10-22 09:01:27,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:27" (1/1) ... [2019-10-22 09:01:27,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:27" (1/1) ... [2019-10-22 09:01:27,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:27" (1/1) ... [2019-10-22 09:01:27,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:27" (1/1) ... [2019-10-22 09:01:27,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:27,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:27,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:27,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:27,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/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 [2019-10-22 09:01:27,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 09:01:27,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:27,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-22 09:01:27,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 09:01:27,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 09:01:27,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-22 09:01:27,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-22 09:01:27,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-22 09:01:27,673 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2019-10-22 09:01:27,673 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2019-10-22 09:01:27,673 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 09:01:27,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 09:01:27,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-22 09:01:27,673 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 09:01:27,673 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 09:01:27,674 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 09:01:27,674 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 09:01:27,674 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 09:01:27,674 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 09:01:27,674 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 09:01:27,675 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 09:01:27,675 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 09:01:27,675 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 09:01:27,675 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 09:01:27,675 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 09:01:27,675 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 09:01:27,675 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 09:01:27,675 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 09:01:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 09:01:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 09:01:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 09:01:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-22 09:01:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-22 09:01:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-22 09:01:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 09:01:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 09:01:27,677 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 09:01:27,677 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 09:01:27,677 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 09:01:27,677 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 09:01:27,677 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 09:01:27,677 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 09:01:27,677 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 09:01:27,677 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 09:01:27,678 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 09:01:27,678 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 09:01:27,678 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 09:01:27,678 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 09:01:27,678 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 09:01:27,679 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 09:01:27,679 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 09:01:27,679 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 09:01:27,679 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 09:01:27,679 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 09:01:27,679 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 09:01:27,679 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 09:01:27,680 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 09:01:27,680 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 09:01:27,680 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 09:01:27,680 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 09:01:27,680 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 09:01:27,680 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 09:01:27,680 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 09:01:27,680 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 09:01:27,681 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 09:01:27,681 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 09:01:27,681 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 09:01:27,681 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 09:01:27,681 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 09:01:27,681 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 09:01:27,681 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 09:01:27,681 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 09:01:27,681 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 09:01:27,682 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 09:01:27,682 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 09:01:27,682 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 09:01:27,682 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 09:01:27,683 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 09:01:27,683 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 09:01:27,683 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 09:01:27,683 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 09:01:27,683 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 09:01:27,683 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 09:01:27,683 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 09:01:27,683 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 09:01:27,684 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 09:01:27,684 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 09:01:27,684 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 09:01:27,684 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 09:01:27,684 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 09:01:27,684 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 09:01:27,684 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 09:01:27,685 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 09:01:27,685 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 09:01:27,685 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 09:01:27,685 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 09:01:27,685 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 09:01:27,685 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 09:01:27,685 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 09:01:27,685 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 09:01:27,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 09:01:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 09:01:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 09:01:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 09:01:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 09:01:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 09:01:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 09:01:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 09:01:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 09:01:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 09:01:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 09:01:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 09:01:27,688 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 09:01:27,688 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 09:01:27,688 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 09:01:27,688 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 09:01:27,688 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 09:01:27,688 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 09:01:27,688 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 09:01:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 09:01:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2019-10-22 09:01:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 09:01:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 09:01:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2019-10-22 09:01:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 09:01:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 09:01:27,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 09:01:27,690 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 09:01:27,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:01:27,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 09:01:27,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:28,193 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:28,193 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-22 09:01:28,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:28 BoogieIcfgContainer [2019-10-22 09:01:28,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:28,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:01:28,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:01:28,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:01:28,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:01:27" (1/3) ... [2019-10-22 09:01:28,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47df4477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:28, skipping insertion in model container [2019-10-22 09:01:28,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:27" (2/3) ... [2019-10-22 09:01:28,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47df4477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:28, skipping insertion in model container [2019-10-22 09:01:28,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:28" (3/3) ... [2019-10-22 09:01:28,201 INFO L109 eAbstractionObserver]: Analyzing ICFG list_search-1.i [2019-10-22 09:01:28,210 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:01:28,216 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2019-10-22 09:01:28,226 INFO L249 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2019-10-22 09:01:28,247 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:01:28,248 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 09:01:28,248 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:01:28,248 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:28,248 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:28,248 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:01:28,248 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:28,248 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:01:28,261 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2019-10-22 09:01:28,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 09:01:28,269 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:28,269 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:28,271 INFO L410 AbstractCegarLoop]: === Iteration 1 === [insert_listErr5REQUIRES_VIOLATION, insert_listErr4REQUIRES_VIOLATION, insert_listErr1REQUIRES_VIOLATION, insert_listErr6REQUIRES_VIOLATION, insert_listErr0REQUIRES_VIOLATION, insert_listErr2REQUIRES_VIOLATION, insert_listErr7REQUIRES_VIOLATION, insert_listErr3REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, search_listErr2REQUIRES_VIOLATION, search_listErr3REQUIRES_VIOLATION, search_listErr1REQUIRES_VIOLATION, search_listErr0REQUIRES_VIOLATION]=== [2019-10-22 09:01:28,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:28,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1520208519, now seen corresponding path program 1 times [2019-10-22 09:01:28,281 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:01:28,281 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1448808625] [2019-10-22 09:01:28,282 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3828c5e5-60b6-45b1-a6b9-154c0356d91b/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 [2019-10-22 09:01:28,499 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 09:01:28,499 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 09:01:28,504 INFO L168 Benchmark]: Toolchain (without parser) took 1447.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 945.6 MB in the beginning and 1.0 GB in the end (delta: -100.9 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:28,505 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:28,506 INFO L168 Benchmark]: CACSL2BoogieTranslator took 489.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -176.9 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:28,507 INFO L168 Benchmark]: Boogie Preprocessor took 75.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:28,508 INFO L168 Benchmark]: RCFGBuilder took 571.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:28,508 INFO L168 Benchmark]: TraceAbstraction took 306.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:28,511 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 489.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -176.9 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.71 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 571.27 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: 51.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 306.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 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...