./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/splice-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_b72816d8-fe34-47e7-9f94-99ca5da96206/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b72816d8-fe34-47e7-9f94-99ca5da96206/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b72816d8-fe34-47e7-9f94-99ca5da96206/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b72816d8-fe34-47e7-9f94-99ca5da96206/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/splice-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_b72816d8-fe34-47e7-9f94-99ca5da96206/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b72816d8-fe34-47e7-9f94-99ca5da96206/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 336180afe1780bd2c4e24c39131e05a2fcb6ebf1 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memtrack) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:58:53,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:53,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:53,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:53,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:53,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:53,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:53,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:53,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:53,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:53,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:53,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:53,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:53,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:53,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:53,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:53,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:53,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:53,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:53,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:53,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:53,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:53,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:53,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:53,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:53,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:53,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:53,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:53,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:53,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:53,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:53,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:53,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:53,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:53,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:53,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:53,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:53,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:53,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:53,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:53,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:53,730 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b72816d8-fe34-47e7-9f94-99ca5da96206/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-10-22 08:58:53,741 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:53,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:53,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:53,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:53,743 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:53,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:53,743 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:53,743 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:58:53,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:53,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:53,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:53,744 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 08:58:53,744 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 08:58:53,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:53,745 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:53,745 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:53,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:53,745 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:53,746 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:53,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:53,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:53,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:53,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:53,746 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:53,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:58:53,747 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_b72816d8-fe34-47e7-9f94-99ca5da96206/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 -> 336180afe1780bd2c4e24c39131e05a2fcb6ebf1 [2019-10-22 08:58:53,772 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:53,782 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:53,785 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:53,786 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:53,786 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:53,787 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b72816d8-fe34-47e7-9f94-99ca5da96206/bin/uautomizer/../../sv-benchmarks/c/list-properties/splice-1.i [2019-10-22 08:58:53,828 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b72816d8-fe34-47e7-9f94-99ca5da96206/bin/uautomizer/data/1c3e98340/ca434cd4d2204518acf73ae91f3e8ce8/FLAGb18bd180e [2019-10-22 08:58:54,226 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:54,226 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b72816d8-fe34-47e7-9f94-99ca5da96206/sv-benchmarks/c/list-properties/splice-1.i [2019-10-22 08:58:54,236 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b72816d8-fe34-47e7-9f94-99ca5da96206/bin/uautomizer/data/1c3e98340/ca434cd4d2204518acf73ae91f3e8ce8/FLAGb18bd180e [2019-10-22 08:58:54,247 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b72816d8-fe34-47e7-9f94-99ca5da96206/bin/uautomizer/data/1c3e98340/ca434cd4d2204518acf73ae91f3e8ce8 [2019-10-22 08:58:54,249 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:54,250 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 08:58:54,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:54,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:54,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:54,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24abdaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54, skipping insertion in model container [2019-10-22 08:58:54,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,265 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:54,295 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:54,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:54,650 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:54,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:54,725 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:54,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54 WrapperNode [2019-10-22 08:58:54,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:54,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:54,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:54,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:54,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:54,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:54,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:54,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:54,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b72816d8-fe34-47e7-9f94-99ca5da96206/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 08:58:54,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 08:58:54,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:54,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 08:58:54,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 08:58:54,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-22 08:58:54,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-22 08:58:54,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-22 08:58:54,838 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-22 08:58:54,839 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 08:58:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 08:58:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 08:58:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 08:58:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 08:58:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 08:58:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 08:58:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 08:58:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 08:58:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 08:58:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 08:58:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 08:58:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 08:58:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 08:58:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 08:58:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 08:58:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 08:58:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 08:58:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 08:58:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 08:58:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 08:58:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-22 08:58:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-22 08:58:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-22 08:58:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 08:58:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 08:58:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 08:58:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 08:58:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 08:58:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 08:58:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 08:58:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 08:58:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 08:58:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 08:58:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 08:58:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 08:58:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 08:58:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 08:58:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 08:58:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 08:58:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 08:58:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 08:58:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 08:58:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 08:58:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 08:58:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 08:58:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 08:58:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 08:58:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 08:58:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 08:58:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 08:58:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 08:58:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 08:58:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 08:58:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 08:58:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 08:58:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 08:58:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 08:58:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 08:58:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 08:58:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 08:58:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 08:58:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 08:58:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 08:58:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 08:58:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 08:58:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 08:58:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 08:58:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 08:58:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 08:58:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 08:58:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 08:58:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 08:58:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 08:58:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 08:58:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 08:58:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 08:58:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 08:58:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 08:58:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 08:58:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 08:58:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 08:58:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 08:58:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 08:58:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 08:58:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 08:58:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 08:58:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 08:58:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 08:58:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 08:58:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 08:58:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 08:58:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 08:58:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 08:58:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 08:58:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 08:58:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 08:58:54,851 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 08:58:54,851 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 08:58:54,851 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 08:58:54,851 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 08:58:54,851 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 08:58:54,851 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 08:58:54,851 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 08:58:54,851 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 08:58:54,851 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 08:58:54,852 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 08:58:54,852 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 08:58:54,852 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 08:58:54,852 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 08:58:54,852 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-22 08:58:54,852 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 08:58:54,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 08:58:54,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:58:54,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 08:58:54,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 08:58:54,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:58:54,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 08:58:54,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:54,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:58:55,103 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-22 08:58:55,363 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:55,363 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 08:58:55,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:55 BoogieIcfgContainer [2019-10-22 08:58:55,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:55,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:55,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:55,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:55,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:54" (1/3) ... [2019-10-22 08:58:55,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74c04fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:55, skipping insertion in model container [2019-10-22 08:58:55,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (2/3) ... [2019-10-22 08:58:55,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74c04fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:55, skipping insertion in model container [2019-10-22 08:58:55,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:55" (3/3) ... [2019-10-22 08:58:55,374 INFO L109 eAbstractionObserver]: Analyzing ICFG splice-1.i [2019-10-22 08:58:55,383 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:55,391 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2019-10-22 08:58:55,402 INFO L249 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2019-10-22 08:58:55,422 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:55,432 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 08:58:55,433 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:55,434 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:55,434 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:55,434 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:55,434 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:55,434 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:55,456 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2019-10-22 08:58:55,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:58:55,470 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:55,471 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:55,473 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr15REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION]=== [2019-10-22 08:58:55,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:55,479 INFO L82 PathProgramCache]: Analyzing trace with hash -587397819, now seen corresponding path program 1 times [2019-10-22 08:58:55,487 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:55,488 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540235631] [2019-10-22 08:58:55,488 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:55,488 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:55,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:55,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:55,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:55,656 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 08:58:55,658 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540235631] [2019-10-22 08:58:55,659 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:55,660 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:58:55,660 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573692358] [2019-10-22 08:58:55,665 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:58:55,666 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:55,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:58:55,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:55,682 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 3 states. [2019-10-22 08:58:55,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:55,912 INFO L93 Difference]: Finished difference Result 83 states and 92 transitions. [2019-10-22 08:58:55,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:58:55,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-10-22 08:58:55,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:55,920 INFO L225 Difference]: With dead ends: 83 [2019-10-22 08:58:55,920 INFO L226 Difference]: Without dead ends: 75 [2019-10-22 08:58:55,922 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:55,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-10-22 08:58:55,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2019-10-22 08:58:55,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-10-22 08:58:55,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 81 transitions. [2019-10-22 08:58:55,966 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 81 transitions. Word has length 10 [2019-10-22 08:58:55,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:55,967 INFO L462 AbstractCegarLoop]: Abstraction has 75 states and 81 transitions. [2019-10-22 08:58:55,967 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:58:55,967 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 81 transitions. [2019-10-22 08:58:55,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 08:58:55,968 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:55,968 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:55,968 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr15REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION]=== [2019-10-22 08:58:55,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:55,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1029498852, now seen corresponding path program 1 times [2019-10-22 08:58:55,969 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:55,970 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388932611] [2019-10-22 08:58:55,970 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:55,970 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:55,970 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:56,043 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 08:58:56,043 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388932611] [2019-10-22 08:58:56,043 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:56,044 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:58:56,044 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719491456] [2019-10-22 08:58:56,045 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:58:56,045 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:56,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:58:56,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:58:56,046 INFO L87 Difference]: Start difference. First operand 75 states and 81 transitions. Second operand 5 states. [2019-10-22 08:58:56,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:56,261 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2019-10-22 08:58:56,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:58:56,262 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-10-22 08:58:56,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:56,263 INFO L225 Difference]: With dead ends: 82 [2019-10-22 08:58:56,263 INFO L226 Difference]: Without dead ends: 82 [2019-10-22 08:58:56,264 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:58:56,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-10-22 08:58:56,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 76. [2019-10-22 08:58:56,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-10-22 08:58:56,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 88 transitions. [2019-10-22 08:58:56,272 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 88 transitions. Word has length 11 [2019-10-22 08:58:56,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:56,272 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 88 transitions. [2019-10-22 08:58:56,272 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:58:56,273 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 88 transitions. [2019-10-22 08:58:56,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 08:58:56,273 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:56,273 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:56,273 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr15REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION]=== [2019-10-22 08:58:56,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:56,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1029498851, now seen corresponding path program 1 times [2019-10-22 08:58:56,274 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:56,274 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164694016] [2019-10-22 08:58:56,274 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:56,275 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:56,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:56,366 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 08:58:56,367 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164694016] [2019-10-22 08:58:56,367 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:56,371 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:58:56,372 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907824724] [2019-10-22 08:58:56,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:58:56,372 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:56,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:58:56,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:58:56,373 INFO L87 Difference]: Start difference. First operand 76 states and 88 transitions. Second operand 5 states. [2019-10-22 08:58:56,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:56,631 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2019-10-22 08:58:56,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:58:56,632 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-10-22 08:58:56,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:56,633 INFO L225 Difference]: With dead ends: 90 [2019-10-22 08:58:56,633 INFO L226 Difference]: Without dead ends: 90 [2019-10-22 08:58:56,634 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:58:56,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-10-22 08:58:56,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 83. [2019-10-22 08:58:56,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-10-22 08:58:56,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 92 transitions. [2019-10-22 08:58:56,641 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 92 transitions. Word has length 11 [2019-10-22 08:58:56,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:56,641 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 92 transitions. [2019-10-22 08:58:56,642 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:58:56,642 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 92 transitions. [2019-10-22 08:58:56,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 08:58:56,642 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:56,643 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:56,643 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr15REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION]=== [2019-10-22 08:58:56,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:56,643 INFO L82 PathProgramCache]: Analyzing trace with hash 561197792, now seen corresponding path program 1 times [2019-10-22 08:58:56,644 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:56,644 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700046949] [2019-10-22 08:58:56,644 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:56,644 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:56,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:56,701 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:56,702 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:58:56,712 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-10-22 08:58:56,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:58:56 BoogieIcfgContainer [2019-10-22 08:58:56,725 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:58:56,726 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:56,726 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:56,726 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:56,727 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:55" (3/4) ... [2019-10-22 08:58:56,729 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:58:56,732 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-10-22 08:58:56,773 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b72816d8-fe34-47e7-9f94-99ca5da96206/bin/uautomizer/witness.graphml [2019-10-22 08:58:56,774 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:56,776 INFO L168 Benchmark]: Toolchain (without parser) took 2524.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 939.1 MB in the beginning and 967.2 MB in the end (delta: -28.0 MB). Peak memory consumption was 140.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:56,776 INFO L168 Benchmark]: CDTParser took 0.15 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 08:58:56,777 INFO L168 Benchmark]: CACSL2BoogieTranslator took 473.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -206.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:56,777 INFO L168 Benchmark]: Boogie Preprocessor took 59.35 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 08:58:56,778 INFO L168 Benchmark]: RCFGBuilder took 578.83 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: 58.6 MB). Peak memory consumption was 58.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:56,778 INFO L168 Benchmark]: TraceAbstraction took 1360.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 967.2 MB in the end (delta: 119.6 MB). Peak memory consumption was 119.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:56,779 INFO L168 Benchmark]: Witness Printer took 48.04 ms. Allocated memory is still 1.2 GB. Free memory is still 967.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:56,781 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 473.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -206.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.35 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 578.83 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: 58.6 MB). Peak memory consumption was 58.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1360.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 967.2 MB in the end (delta: 119.6 MB). Peak memory consumption was 119.6 MB. Max. memory is 11.5 GB. * Witness Printer took 48.04 ms. Allocated memory is still 1.2 GB. Free memory is still 967.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 520]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L521] int flag = 1; [L522] List a = (List) malloc(sizeof(struct node)); VAL [a={2:0}, flag=1, malloc(sizeof(struct node))={2:0}] [L523] COND FALSE !(a == 0) VAL [a={2:0}, flag=1, malloc(sizeof(struct node))={2:0}] [L524] List t; [L525] List l1; [L526] List l2; [L527] List b; [L528] List u; [L529] List p = a; VAL [a={2:0}, flag=1, malloc(sizeof(struct node))={2:0}, p={2:0}] [L530] COND FALSE !(__VERIFIER_nondet_int()) [L543] p->h = 3 VAL [a={2:0}, flag=1, malloc(sizeof(struct node))={2:0}, p={2:0}] [L544] EXPR a->h VAL [a={2:0}, a->h=3, flag=1, malloc(sizeof(struct node))={2:0}, p={2:0}] [L544] COND TRUE a->h == 3 [L544] return 0; VAL [\result=0, a={2:0}, flag=1, malloc(sizeof(struct node))={2:0}, p={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 99 locations, 29 error locations. Result: UNSAFE, OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 165 SDtfs, 221 SDslu, 55 SDs, 0 SdLazy, 379 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 1142 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...