./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3187b9137fe836a772e635b057217bb3e86134c2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3187b9137fe836a772e635b057217bb3e86134c2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 15:34:31,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:34:31,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:34:31,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:34:31,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:34:31,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:34:31,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:34:31,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:34:31,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:34:31,909 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:34:31,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:34:31,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:34:31,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:34:31,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:34:31,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:34:31,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:34:31,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:34:31,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:34:31,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:34:31,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:34:31,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:34:31,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:34:31,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:34:31,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:34:31,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:34:31,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:34:31,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:34:31,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:34:31,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:34:31,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:34:31,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:34:31,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:34:31,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:34:31,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:34:31,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:34:31,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:34:31,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:34:31,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:34:31,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:34:31,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:34:31,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:34:31,926 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-12-07 15:34:31,936 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:34:31,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:34:31,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:34:31,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:34:31,937 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:34:31,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:34:31,937 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:34:31,937 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 15:34:31,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:34:31,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:34:31,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:34:31,938 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 15:34:31,938 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 15:34:31,938 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 15:34:31,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:34:31,938 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:34:31,938 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:34:31,939 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:34:31,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:34:31,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:34:31,939 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:34:31,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:34:31,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:34:31,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:34:31,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:34:31,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 15:34:31,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:34:31,940 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:34:31,940 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> 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 -> 3187b9137fe836a772e635b057217bb3e86134c2 [2019-12-07 15:34:32,038 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:34:32,048 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:34:32,051 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:34:32,052 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:34:32,053 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:34:32,053 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2019-12-07 15:34:32,094 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/data/65d4e25d6/fe4975f412f944e2bed4532c178f0adf/FLAG303386161 [2019-12-07 15:34:32,452 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:34:32,452 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2019-12-07 15:34:32,461 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/data/65d4e25d6/fe4975f412f944e2bed4532c178f0adf/FLAG303386161 [2019-12-07 15:34:32,470 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/data/65d4e25d6/fe4975f412f944e2bed4532c178f0adf [2019-12-07 15:34:32,471 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:34:32,472 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 15:34:32,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:34:32,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:34:32,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:34:32,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:34:32" (1/1) ... [2019-12-07 15:34:32,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cfcba3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:34:32, skipping insertion in model container [2019-12-07 15:34:32,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:34:32" (1/1) ... [2019-12-07 15:34:32,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:34:32,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:34:32,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:34:32,707 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:34:32,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:34:32,769 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:34:32,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:34:32 WrapperNode [2019-12-07 15:34:32,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:34:32,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:34:32,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:34:32,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:34:32,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:34:32" (1/1) ... [2019-12-07 15:34:32,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:34:32" (1/1) ... [2019-12-07 15:34:32,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:34:32" (1/1) ... [2019-12-07 15:34:32,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:34:32" (1/1) ... [2019-12-07 15:34:32,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:34:32" (1/1) ... [2019-12-07 15:34:32,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:34:32" (1/1) ... [2019-12-07 15:34:32,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:34:32" (1/1) ... [2019-12-07 15:34:32,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:34:32,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:34:32,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:34:32,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:34:32,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:34:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/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 [2019-12-07 15:34:32,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 15:34:32,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:34:32,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-12-07 15:34:32,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-12-07 15:34:32,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-12-07 15:34:32,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-12-07 15:34:32,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-12-07 15:34:32,844 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 15:34:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-12-07 15:34:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 15:34:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 15:34:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 15:34:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 15:34:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 15:34:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 15:34:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 15:34:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 15:34:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 15:34:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 15:34:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 15:34:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 15:34:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 15:34:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 15:34:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 15:34:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 15:34:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-12-07 15:34:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-12-07 15:34:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-12-07 15:34:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-12-07 15:34:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-12-07 15:34:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 15:34:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 15:34:32,846 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 15:34:32,846 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 15:34:32,846 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 15:34:32,846 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 15:34:32,846 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 15:34:32,846 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 15:34:32,846 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 15:34:32,846 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 15:34:32,846 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 15:34:32,846 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 15:34:32,846 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 15:34:32,846 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 15:34:32,846 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 15:34:32,846 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 15:34:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 15:34:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 15:34:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 15:34:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 15:34:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 15:34:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 15:34:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 15:34:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 15:34:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 15:34:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 15:34:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 15:34:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 15:34:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 15:34:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 15:34:32,848 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 15:34:32,848 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 15:34:32,848 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 15:34:32,848 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 15:34:32,848 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 15:34:32,848 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 15:34:32,848 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 15:34:32,848 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 15:34:32,848 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 15:34:32,848 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 15:34:32,848 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 15:34:32,848 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 15:34:32,848 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 15:34:32,848 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 15:34:32,849 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 15:34:32,849 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 15:34:32,849 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 15:34:32,849 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 15:34:32,849 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 15:34:32,849 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 15:34:32,849 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 15:34:32,849 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 15:34:32,849 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 15:34:32,849 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 15:34:32,849 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 15:34:32,849 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 15:34:32,849 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 15:34:32,849 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 15:34:32,850 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 15:34:32,850 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 15:34:32,850 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 15:34:32,850 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 15:34:32,850 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 15:34:32,850 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 15:34:32,850 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 15:34:32,850 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 15:34:32,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 15:34:32,850 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 15:34:32,850 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 15:34:32,850 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 15:34:32,850 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 15:34:32,850 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 15:34:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 15:34:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 15:34:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 15:34:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 15:34:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 15:34:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 15:34:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 15:34:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 15:34:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 15:34:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 15:34:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 15:34:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 15:34:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 15:34:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 15:34:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-12-07 15:34:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 15:34:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:34:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 15:34:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 15:34:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 15:34:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 15:34:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:34:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 15:34:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:34:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 15:34:33,077 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:34:33,077 INFO L287 CfgBuilder]: Removed 0 assume(true) statements. [2019-12-07 15:34:33,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:34:33 BoogieIcfgContainer [2019-12-07 15:34:33,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:34:33,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:34:33,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:34:33,082 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:34:33,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:34:32" (1/3) ... [2019-12-07 15:34:33,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d944b5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:34:33, skipping insertion in model container [2019-12-07 15:34:33,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:34:32" (2/3) ... [2019-12-07 15:34:33,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d944b5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:34:33, skipping insertion in model container [2019-12-07 15:34:33,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:34:33" (3/3) ... [2019-12-07 15:34:33,084 INFO L109 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2019-12-07 15:34:33,090 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:34:33,094 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2019-12-07 15:34:33,101 INFO L249 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2019-12-07 15:34:33,113 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:34:33,114 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 15:34:33,114 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:34:33,114 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:34:33,114 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:34:33,114 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:34:33,114 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:34:33,114 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:34:33,123 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-12-07 15:34:33,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 15:34:33,129 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:34:33,129 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:34:33,129 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-12-07 15:34:33,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:34:33,133 INFO L82 PathProgramCache]: Analyzing trace with hash 685527250, now seen corresponding path program 1 times [2019-12-07 15:34:33,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:34:33,139 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695344072] [2019-12-07 15:34:33,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:34:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:34:33,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:34:33,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:34:33,276 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695344072] [2019-12-07 15:34:33,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:34:33,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 15:34:33,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683391757] [2019-12-07 15:34:33,279 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:34:33,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:34:33,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:34:33,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:34:33,291 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 4 states. [2019-12-07 15:34:33,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:34:33,358 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2019-12-07 15:34:33,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:34:33,360 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 15:34:33,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:34:33,368 INFO L225 Difference]: With dead ends: 25 [2019-12-07 15:34:33,368 INFO L226 Difference]: Without dead ends: 22 [2019-12-07 15:34:33,369 INFO L630 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 [2019-12-07 15:34:33,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-07 15:34:33,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-07 15:34:33,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-07 15:34:33,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2019-12-07 15:34:33,395 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 7 [2019-12-07 15:34:33,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:34:33,395 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2019-12-07 15:34:33,395 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:34:33,395 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2019-12-07 15:34:33,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 15:34:33,396 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:34:33,396 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:34:33,396 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-12-07 15:34:33,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:34:33,396 INFO L82 PathProgramCache]: Analyzing trace with hash 685527251, now seen corresponding path program 1 times [2019-12-07 15:34:33,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:34:33,396 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462770012] [2019-12-07 15:34:33,397 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:34:33,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:34:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:34:33,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:34:33,441 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462770012] [2019-12-07 15:34:33,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:34:33,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 15:34:33,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154700275] [2019-12-07 15:34:33,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:34:33,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:34:33,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:34:33,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:34:33,443 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 4 states. [2019-12-07 15:34:33,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:34:33,474 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2019-12-07 15:34:33,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:34:33,475 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 15:34:33,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:34:33,476 INFO L225 Difference]: With dead ends: 17 [2019-12-07 15:34:33,476 INFO L226 Difference]: Without dead ends: 17 [2019-12-07 15:34:33,476 INFO L630 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 [2019-12-07 15:34:33,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-07 15:34:33,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-07 15:34:33,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-07 15:34:33,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-12-07 15:34:33,479 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2019-12-07 15:34:33,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:34:33,479 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-12-07 15:34:33,479 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:34:33,479 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-12-07 15:34:33,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 15:34:33,480 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:34:33,480 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:34:33,480 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-12-07 15:34:33,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:34:33,480 INFO L82 PathProgramCache]: Analyzing trace with hash 849270888, now seen corresponding path program 1 times [2019-12-07 15:34:33,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:34:33,480 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659419066] [2019-12-07 15:34:33,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:34:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:34:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:34:33,537 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:34:33,537 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:34:33,545 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-12-07 15:34:33,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:34:33 BoogieIcfgContainer [2019-12-07 15:34:33,553 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:34:33,553 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:34:33,553 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:34:33,553 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:34:33,553 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:34:33" (3/4) ... [2019-12-07 15:34:33,555 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 15:34:33,556 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:34:33,557 INFO L168 Benchmark]: Toolchain (without parser) took 1084.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 949.0 MB in the beginning and 980.7 MB in the end (delta: -31.7 MB). Peak memory consumption was 64.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:34:33,557 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 964.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:34:33,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -135.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:34:33,558 INFO L168 Benchmark]: Boogie Preprocessor took 33.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:34:33,559 INFO L168 Benchmark]: RCFGBuilder took 274.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 43.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 11.5 GB. [2019-12-07 15:34:33,559 INFO L168 Benchmark]: TraceAbstraction took 473.40 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 980.7 MB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:34:33,559 INFO L168 Benchmark]: Witness Printer took 2.77 ms. Allocated memory is still 1.1 GB. Free memory is still 980.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:34:33,561 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 964.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 296.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -135.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 274.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 43.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 473.40 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 980.7 MB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.77 ms. Allocated memory is still 1.1 GB. Free memory is still 980.7 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) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 513]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 513. Possible FailurePath: [L515-L522] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L523] data.p0 = malloc(37U) VAL [data={2:0}, malloc(37U)={-1:0}] [L524] COND FALSE !(__VERIFIER_nondet_int()) [L527] data.str.p2 = 30 VAL [data={2:0}, malloc(37U)={-1:0}] [L529] EXPR data.str.p2 VAL [data={2:0}, data.str.p2=30, malloc(37U)={-1:0}] [L529] COND FALSE !(25 > data.str.p2) [L532] return 0; [L532] return 0; VAL [\result=0, malloc(37U)={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 45 locations, 11 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 25 SDslu, 15 SDs, 0 SdLazy, 62 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 252 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 15:34:34,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:34:34,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:34:34,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:34:34,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:34:34,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:34:34,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:34:34,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:34:34,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:34:34,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:34:34,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:34:34,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:34:34,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:34:34,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:34:34,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:34:34,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:34:34,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:34:34,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:34:34,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:34:34,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:34:34,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:34:34,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:34:34,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:34:34,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:34:34,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:34:34,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:34:34,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:34:34,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:34:34,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:34:34,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:34:34,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:34:34,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:34:34,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:34:34,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:34:34,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:34:34,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:34:34,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:34:34,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:34:34,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:34:35,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:34:35,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:34:35,001 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-12-07 15:34:35,011 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:34:35,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:34:35,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:34:35,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:34:35,012 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:34:35,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:34:35,012 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:34:35,013 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 15:34:35,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:34:35,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:34:35,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:34:35,013 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 15:34:35,013 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 15:34:35,013 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 15:34:35,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:34:35,014 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:34:35,014 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 15:34:35,014 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 15:34:35,014 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:34:35,014 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:34:35,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:34:35,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:34:35,015 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:34:35,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:34:35,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:34:35,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:34:35,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:34:35,016 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 15:34:35,016 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 15:34:35,016 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:34:35,016 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:34:35,016 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> 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 -> 3187b9137fe836a772e635b057217bb3e86134c2 [2019-12-07 15:34:35,187 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:34:35,196 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:34:35,198 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:34:35,199 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:34:35,199 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:34:35,200 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2019-12-07 15:34:35,236 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/data/8bff22b00/e8af2f64bafd4d85a2d12e80b055f6ed/FLAGe61be4148 [2019-12-07 15:34:35,671 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:34:35,672 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2019-12-07 15:34:35,682 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/data/8bff22b00/e8af2f64bafd4d85a2d12e80b055f6ed/FLAGe61be4148 [2019-12-07 15:34:36,018 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/data/8bff22b00/e8af2f64bafd4d85a2d12e80b055f6ed [2019-12-07 15:34:36,021 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:34:36,023 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 15:34:36,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:34:36,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:34:36,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:34:36,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:34:36" (1/1) ... [2019-12-07 15:34:36,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c052161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:34:36, skipping insertion in model container [2019-12-07 15:34:36,034 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:34:36" (1/1) ... [2019-12-07 15:34:36,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:34:36,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:34:36,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:34:36,246 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:34:36,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:34:36,343 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:34:36,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:34:36 WrapperNode [2019-12-07 15:34:36,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:34:36,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:34:36,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:34:36,344 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:34:36,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:34:36" (1/1) ... [2019-12-07 15:34:36,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:34:36" (1/1) ... [2019-12-07 15:34:36,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:34:36" (1/1) ... [2019-12-07 15:34:36,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:34:36" (1/1) ... [2019-12-07 15:34:36,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:34:36" (1/1) ... [2019-12-07 15:34:36,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:34:36" (1/1) ... [2019-12-07 15:34:36,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:34:36" (1/1) ... [2019-12-07 15:34:36,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:34:36,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:34:36,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:34:36,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:34:36,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:34:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/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 [2019-12-07 15:34:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 15:34:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:34:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 15:34:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-12-07 15:34:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-12-07 15:34:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-12-07 15:34:36,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-12-07 15:34:36,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-12-07 15:34:36,426 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 15:34:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-12-07 15:34:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 15:34:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 15:34:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 15:34:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 15:34:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 15:34:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 15:34:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 15:34:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 15:34:36,427 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 15:34:36,427 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 15:34:36,427 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 15:34:36,427 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 15:34:36,427 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 15:34:36,427 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 15:34:36,427 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 15:34:36,427 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 15:34:36,427 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-12-07 15:34:36,427 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-12-07 15:34:36,427 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-12-07 15:34:36,427 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-12-07 15:34:36,427 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-12-07 15:34:36,428 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 15:34:36,428 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 15:34:36,428 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 15:34:36,428 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 15:34:36,428 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 15:34:36,428 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 15:34:36,428 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 15:34:36,428 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 15:34:36,428 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 15:34:36,428 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 15:34:36,428 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 15:34:36,428 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 15:34:36,428 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 15:34:36,429 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 15:34:36,429 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 15:34:36,429 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 15:34:36,429 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 15:34:36,429 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 15:34:36,429 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 15:34:36,429 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 15:34:36,429 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 15:34:36,429 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 15:34:36,429 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 15:34:36,429 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 15:34:36,429 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 15:34:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 15:34:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 15:34:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 15:34:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 15:34:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 15:34:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 15:34:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 15:34:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 15:34:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 15:34:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 15:34:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 15:34:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 15:34:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 15:34:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 15:34:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 15:34:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 15:34:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 15:34:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 15:34:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 15:34:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 15:34:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 15:34:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 15:34:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 15:34:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 15:34:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 15:34:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 15:34:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 15:34:36,432 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 15:34:36,432 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 15:34:36,432 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 15:34:36,432 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 15:34:36,432 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 15:34:36,432 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 15:34:36,432 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 15:34:36,432 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 15:34:36,432 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 15:34:36,432 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 15:34:36,432 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 15:34:36,432 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 15:34:36,432 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 15:34:36,432 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 15:34:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 15:34:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 15:34:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 15:34:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 15:34:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 15:34:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 15:34:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 15:34:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 15:34:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 15:34:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 15:34:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 15:34:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 15:34:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 15:34:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 15:34:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 15:34:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 15:34:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 15:34:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 15:34:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 15:34:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 15:34:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-12-07 15:34:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 15:34:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:34:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 15:34:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 15:34:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 15:34:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 15:34:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2019-12-07 15:34:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:34:36,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 15:34:36,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:34:36,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 15:34:36,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2019-12-07 15:34:36,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 15:34:36,726 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:34:36,726 INFO L287 CfgBuilder]: Removed 0 assume(true) statements. [2019-12-07 15:34:36,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:34:36 BoogieIcfgContainer [2019-12-07 15:34:36,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:34:36,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:34:36,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:34:36,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:34:36,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:34:36" (1/3) ... [2019-12-07 15:34:36,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1962ecf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:34:36, skipping insertion in model container [2019-12-07 15:34:36,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:34:36" (2/3) ... [2019-12-07 15:34:36,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1962ecf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:34:36, skipping insertion in model container [2019-12-07 15:34:36,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:34:36" (3/3) ... [2019-12-07 15:34:36,731 INFO L109 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2019-12-07 15:34:36,738 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:34:36,742 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2019-12-07 15:34:36,749 INFO L249 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2019-12-07 15:34:36,761 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:34:36,761 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 15:34:36,761 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:34:36,761 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:34:36,761 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:34:36,761 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:34:36,761 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:34:36,761 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:34:36,770 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2019-12-07 15:34:36,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 15:34:36,775 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:34:36,776 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:34:36,776 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-12-07 15:34:36,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:34:36,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1500926649, now seen corresponding path program 1 times [2019-12-07 15:34:36,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:34:36,787 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171274921] [2019-12-07 15:34:36,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 15:34:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:34:36,886 INFO L264 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:34:36,889 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:34:36,950 INFO L343 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2019-12-07 15:34:36,951 INFO L377 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 1 case distinctions, treesize of input 9 treesize of output 11 [2019-12-07 15:34:36,951 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:34:36,957 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:34:36,958 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 15:34:36,959 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2019-12-07 15:34:36,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:34:36,972 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:34:36,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:34:36,982 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171274921] [2019-12-07 15:34:36,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:34:36,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 15:34:36,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672036690] [2019-12-07 15:34:36,988 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:34:36,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:34:37,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:34:37,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:34:37,004 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2019-12-07 15:34:37,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:34:37,084 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2019-12-07 15:34:37,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:34:37,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-07 15:34:37,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:34:37,091 INFO L225 Difference]: With dead ends: 24 [2019-12-07 15:34:37,091 INFO L226 Difference]: Without dead ends: 21 [2019-12-07 15:34:37,093 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:34:37,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-07 15:34:37,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-07 15:34:37,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-07 15:34:37,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-12-07 15:34:37,117 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 7 [2019-12-07 15:34:37,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:34:37,117 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-12-07 15:34:37,117 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:34:37,117 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-12-07 15:34:37,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 15:34:37,117 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:34:37,118 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:34:37,318 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 15:34:37,319 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-12-07 15:34:37,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:34:37,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1500926648, now seen corresponding path program 1 times [2019-12-07 15:34:37,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:34:37,321 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [422715314] [2019-12-07 15:34:37,321 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 15:34:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:34:37,473 INFO L264 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 15:34:37,475 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:34:37,491 INFO L430 ElimStorePlain]: Different costs {0=[|v_#length_17|], 1=[|v_#valid_29|]} [2019-12-07 15:34:37,497 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 15:34:37,499 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2019-12-07 15:34:37,499 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:34:37,512 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:34:37,515 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 15:34:37,519 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2019-12-07 15:34:37,519 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 15:34:37,527 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:34:37,528 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 15:34:37,528 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2019-12-07 15:34:37,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:34:37,542 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:34:37,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:34:37,592 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [422715314] [2019-12-07 15:34:37,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:34:37,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 15:34:37,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746863537] [2019-12-07 15:34:37,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:34:37,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:34:37,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:34:37,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:34:37,595 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 4 states. [2019-12-07 15:34:37,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:34:37,641 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2019-12-07 15:34:37,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:34:37,642 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 15:34:37,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:34:37,642 INFO L225 Difference]: With dead ends: 16 [2019-12-07 15:34:37,642 INFO L226 Difference]: Without dead ends: 16 [2019-12-07 15:34:37,643 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:34:37,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-07 15:34:37,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-07 15:34:37,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-07 15:34:37,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2019-12-07 15:34:37,646 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 7 [2019-12-07 15:34:37,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:34:37,646 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2019-12-07 15:34:37,647 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:34:37,647 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2019-12-07 15:34:37,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 15:34:37,647 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:34:37,647 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:34:37,848 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 15:34:37,848 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-12-07 15:34:37,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:34:37,849 INFO L82 PathProgramCache]: Analyzing trace with hash 676708179, now seen corresponding path program 1 times [2019-12-07 15:34:37,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:34:37,851 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643756398] [2019-12-07 15:34:37,851 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 15:34:37,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:34:37,982 INFO L264 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 15:34:37,983 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:34:37,989 INFO L377 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 [2019-12-07 15:34:37,990 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:34:37,993 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:34:37,993 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 15:34:37,993 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2019-12-07 15:34:38,003 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2019-12-07 15:34:38,004 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:34:38,005 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:34:38,005 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 15:34:38,005 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:5 [2019-12-07 15:34:38,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:34:38,013 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:34:38,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:34:38,042 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643756398] [2019-12-07 15:34:38,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:34:38,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 15:34:38,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016271254] [2019-12-07 15:34:38,043 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 15:34:38,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:34:38,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 15:34:38,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 15:34:38,044 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 6 states. [2019-12-07 15:34:38,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:34:38,130 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2019-12-07 15:34:38,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:34:38,131 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2019-12-07 15:34:38,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:34:38,131 INFO L225 Difference]: With dead ends: 20 [2019-12-07 15:34:38,131 INFO L226 Difference]: Without dead ends: 20 [2019-12-07 15:34:38,132 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 15:34:38,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-12-07 15:34:38,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2019-12-07 15:34:38,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 15:34:38,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-12-07 15:34:38,135 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2019-12-07 15:34:38,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:34:38,135 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-12-07 15:34:38,135 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 15:34:38,135 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-12-07 15:34:38,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 15:34:38,136 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:34:38,136 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:34:38,336 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 15:34:38,337 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-12-07 15:34:38,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:34:38,337 INFO L82 PathProgramCache]: Analyzing trace with hash 824471539, now seen corresponding path program 1 times [2019-12-07 15:34:38,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:34:38,338 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [396723390] [2019-12-07 15:34:38,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccf27be7-d67f-4a20-abaf-2e18905aa076/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 15:34:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:34:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:34:38,509 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 15:34:38,509 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:34:38,710 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 15:34:38,731 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-12-07 15:34:38,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:34:38 BoogieIcfgContainer [2019-12-07 15:34:38,749 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:34:38,749 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:34:38,749 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:34:38,750 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:34:38,750 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:34:36" (3/4) ... [2019-12-07 15:34:38,754 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 15:34:38,754 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:34:38,755 INFO L168 Benchmark]: Toolchain (without parser) took 2732.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 952.4 MB in the beginning and 878.2 MB in the end (delta: 74.1 MB). Peak memory consumption was 203.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:34:38,756 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:34:38,756 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -159.4 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:34:38,757 INFO L168 Benchmark]: Boogie Preprocessor took 41.30 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-12-07 15:34:38,757 INFO L168 Benchmark]: RCFGBuilder took 342.02 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: 50.4 MB). Peak memory consumption was 50.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:34:38,758 INFO L168 Benchmark]: TraceAbstraction took 2021.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 878.2 MB in the end (delta: 176.6 MB). Peak memory consumption was 176.6 MB. Max. memory is 11.5 GB. [2019-12-07 15:34:38,758 INFO L168 Benchmark]: Witness Printer took 4.50 ms. Allocated memory is still 1.2 GB. Free memory is still 878.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:34:38,761 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 319.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -159.4 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.30 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 342.02 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: 50.4 MB). Peak memory consumption was 50.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2021.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 878.2 MB in the end (delta: 176.6 MB). Peak memory consumption was 176.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.50 ms. Allocated memory is still 1.2 GB. Free memory is still 878.2 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) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 513]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 513. Possible FailurePath: [L515-L522] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L523] data.p0 = malloc(37U) VAL [data={3:0}, malloc(37U)={1:0}] [L524] COND FALSE !(__VERIFIER_nondet_int()) [L527] data.str.p2 = 30 VAL [data={3:0}, malloc(37U)={1:0}] [L529] EXPR data.str.p2 VAL [data={3:0}, data.str.p2=30, malloc(37U)={1:0}] [L529] COND FALSE !(25 > data.str.p2) [L532] return 0; [L532] return 0; VAL [\result=0, malloc(37U)={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 50 locations, 11 error locations. Result: UNSAFE, OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 39 SDtfs, 25 SDslu, 54 SDs, 0 SdLazy, 44 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 48 ConstructedInterpolants, 1 QuantifiedInterpolants, 948 SizeOfPredicates, 8 NumberOfNonLiveVariables, 143 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...