./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/960521-1_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_697d622d-ac72-4804-ae4e-2daca34556ae/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_697d622d-ac72-4804-ae4e-2daca34556ae/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_697d622d-ac72-4804-ae4e-2daca34556ae/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_697d622d-ac72-4804-ae4e-2daca34556ae/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/960521-1_1-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_697d622d-ac72-4804-ae4e-2daca34556ae/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_697d622d-ac72-4804-ae4e-2daca34556ae/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 e9f95b6c839057502038c8f9c89c369852ea0865 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 22:13:43,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:13:43,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:13:43,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:13:43,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:13:43,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:13:43,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:13:43,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:13:43,694 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:13:43,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:13:43,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:13:43,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:13:43,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:13:43,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:13:43,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:13:43,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:13:43,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:13:43,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:13:43,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:13:43,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:13:43,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:13:43,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:13:43,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:13:43,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:13:43,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:13:43,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:13:43,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:13:43,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:13:43,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:13:43,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:13:43,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:13:43,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:13:43,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:13:43,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:13:43,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:13:43,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:13:43,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:13:43,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:13:43,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:13:43,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:13:43,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:13:43,730 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_697d622d-ac72-4804-ae4e-2daca34556ae/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-15 22:13:43,753 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:13:43,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:13:43,764 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:13:43,764 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:13:43,765 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:13:43,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:13:43,765 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:13:43,765 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 22:13:43,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:13:43,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:13:43,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:13:43,766 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-15 22:13:43,767 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-15 22:13:43,767 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-15 22:13:43,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:13:43,767 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:13:43,768 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:13:43,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:13:43,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:13:43,769 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:13:43,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:13:43,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:13:43,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:13:43,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:13:43,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:13:43,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:13:43,770 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_697d622d-ac72-4804-ae4e-2daca34556ae/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 -> e9f95b6c839057502038c8f9c89c369852ea0865 [2019-11-15 22:13:43,802 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:13:43,814 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:13:43,818 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:13:43,819 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:13:43,820 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:13:43,820 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_697d622d-ac72-4804-ae4e-2daca34556ae/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/960521-1_1-1.i [2019-11-15 22:13:43,881 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_697d622d-ac72-4804-ae4e-2daca34556ae/bin/uautomizer/data/24896f4da/09ecfa7af3564a9296acd168b06d33e8/FLAG6c5054ca4 [2019-11-15 22:13:44,355 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:13:44,357 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_697d622d-ac72-4804-ae4e-2daca34556ae/sv-benchmarks/c/list-ext-properties/960521-1_1-1.i [2019-11-15 22:13:44,370 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_697d622d-ac72-4804-ae4e-2daca34556ae/bin/uautomizer/data/24896f4da/09ecfa7af3564a9296acd168b06d33e8/FLAG6c5054ca4 [2019-11-15 22:13:44,676 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_697d622d-ac72-4804-ae4e-2daca34556ae/bin/uautomizer/data/24896f4da/09ecfa7af3564a9296acd168b06d33e8 [2019-11-15 22:13:44,680 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:13:44,682 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-15 22:13:44,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:13:44,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:13:44,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:13:44,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:13:44" (1/1) ... [2019-11-15 22:13:44,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24e88636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:13:44, skipping insertion in model container [2019-11-15 22:13:44,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:13:44" (1/1) ... [2019-11-15 22:13:44,705 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:13:44,752 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:13:45,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:13:45,177 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:13:45,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:13:45,295 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:13:45,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:13:45 WrapperNode [2019-11-15 22:13:45,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:13:45,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:13:45,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:13:45,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:13:45,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:13:45" (1/1) ... [2019-11-15 22:13:45,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:13:45" (1/1) ... [2019-11-15 22:13:45,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:13:45" (1/1) ... [2019-11-15 22:13:45,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:13:45" (1/1) ... [2019-11-15 22:13:45,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:13:45" (1/1) ... [2019-11-15 22:13:45,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:13:45" (1/1) ... [2019-11-15 22:13:45,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:13:45" (1/1) ... [2019-11-15 22:13:45,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:13:45,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:13:45,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:13:45,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:13:45,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:13:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_697d622d-ac72-4804-ae4e-2daca34556ae/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:13:45,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-15 22:13:45,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:13:45,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-15 22:13:45,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-15 22:13:45,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-15 22:13:45,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-15 22:13:45,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-15 22:13:45,411 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-11-15 22:13:45,412 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-15 22:13:45,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-15 22:13:45,413 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-15 22:13:45,413 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-15 22:13:45,414 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-15 22:13:45,414 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-15 22:13:45,414 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-15 22:13:45,414 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-15 22:13:45,414 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-15 22:13:45,414 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-15 22:13:45,416 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-15 22:13:45,417 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-15 22:13:45,417 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-15 22:13:45,417 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-15 22:13:45,417 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-15 22:13:45,417 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-15 22:13:45,418 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-15 22:13:45,418 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-15 22:13:45,418 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-15 22:13:45,418 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-15 22:13:45,418 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-15 22:13:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-15 22:13:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-15 22:13:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-15 22:13:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-15 22:13:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-15 22:13:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-15 22:13:45,420 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-15 22:13:45,420 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-15 22:13:45,420 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-15 22:13:45,420 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-15 22:13:45,420 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-15 22:13:45,420 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-15 22:13:45,421 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-15 22:13:45,421 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-15 22:13:45,421 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-15 22:13:45,421 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-15 22:13:45,421 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-15 22:13:45,423 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-15 22:13:45,423 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-15 22:13:45,423 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-15 22:13:45,423 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-15 22:13:45,423 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-15 22:13:45,424 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-15 22:13:45,424 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-15 22:13:45,424 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-15 22:13:45,424 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-15 22:13:45,424 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-15 22:13:45,424 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-15 22:13:45,425 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-15 22:13:45,425 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-15 22:13:45,425 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-15 22:13:45,426 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-15 22:13:45,426 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-15 22:13:45,426 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-15 22:13:45,426 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-15 22:13:45,426 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-15 22:13:45,426 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-15 22:13:45,427 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-15 22:13:45,427 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-15 22:13:45,427 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-15 22:13:45,427 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-15 22:13:45,428 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-15 22:13:45,428 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-15 22:13:45,428 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-15 22:13:45,428 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-15 22:13:45,429 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-15 22:13:45,429 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-15 22:13:45,430 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-15 22:13:45,430 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-15 22:13:45,431 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-15 22:13:45,431 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-15 22:13:45,431 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-15 22:13:45,431 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-15 22:13:45,431 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-15 22:13:45,431 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-15 22:13:45,432 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-15 22:13:45,432 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-15 22:13:45,432 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-15 22:13:45,432 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-15 22:13:45,432 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-15 22:13:45,432 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-15 22:13:45,432 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-15 22:13:45,433 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-15 22:13:45,433 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-15 22:13:45,433 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-15 22:13:45,433 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-15 22:13:45,433 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-15 22:13:45,433 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-15 22:13:45,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-15 22:13:45,434 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-15 22:13:45,434 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-15 22:13:45,434 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-15 22:13:45,434 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-15 22:13:45,434 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-15 22:13:45,435 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-15 22:13:45,435 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-15 22:13:45,435 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-15 22:13:45,435 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-15 22:13:45,435 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-15 22:13:45,435 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-15 22:13:45,435 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-15 22:13:45,436 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-15 22:13:45,436 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-15 22:13:45,436 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-15 22:13:45,436 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-15 22:13:45,436 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-15 22:13:45,436 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-15 22:13:45,437 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-15 22:13:45,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-15 22:13:45,437 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-11-15 22:13:45,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 22:13:45,438 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-15 22:13:45,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-15 22:13:45,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 22:13:45,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:13:45,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-15 22:13:45,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:13:45,866 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:13:45,866 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-15 22:13:45,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:13:45 BoogieIcfgContainer [2019-11-15 22:13:45,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:13:45,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:13:45,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:13:45,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:13:45,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:13:44" (1/3) ... [2019-11-15 22:13:45,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3953afa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:13:45, skipping insertion in model container [2019-11-15 22:13:45,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:13:45" (2/3) ... [2019-11-15 22:13:45,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3953afa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:13:45, skipping insertion in model container [2019-11-15 22:13:45,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:13:45" (3/3) ... [2019-11-15 22:13:45,872 INFO L109 eAbstractionObserver]: Analyzing ICFG 960521-1_1-1.i [2019-11-15 22:13:45,880 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:13:45,887 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2019-11-15 22:13:45,897 INFO L249 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2019-11-15 22:13:45,913 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:13:45,914 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-15 22:13:45,914 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:13:45,914 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:13:45,914 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:13:45,914 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:13:45,914 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:13:45,915 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:13:45,929 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2019-11-15 22:13:45,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 22:13:45,942 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:13:45,942 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:13:45,944 INFO L410 AbstractCegarLoop]: === Iteration 1 === [fooErr0REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-15 22:13:45,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:13:45,949 INFO L82 PathProgramCache]: Analyzing trace with hash 583874427, now seen corresponding path program 1 times [2019-11-15 22:13:45,957 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:13:45,957 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40920112] [2019-11-15 22:13:45,957 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:13:45,957 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:13:45,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:13:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:13:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:13:46,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:13:46,144 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40920112] [2019-11-15 22:13:46,145 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:13:46,145 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 22:13:46,145 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008663493] [2019-11-15 22:13:46,149 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 22:13:46,149 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:13:46,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 22:13:46,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:13:46,164 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 3 states. [2019-11-15 22:13:46,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:13:46,300 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2019-11-15 22:13:46,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 22:13:46,301 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-15 22:13:46,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:13:46,308 INFO L225 Difference]: With dead ends: 62 [2019-11-15 22:13:46,309 INFO L226 Difference]: Without dead ends: 59 [2019-11-15 22:13:46,310 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:13:46,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-11-15 22:13:46,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2019-11-15 22:13:46,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-11-15 22:13:46,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions. [2019-11-15 22:13:46,354 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 62 transitions. Word has length 9 [2019-11-15 22:13:46,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:13:46,354 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 62 transitions. [2019-11-15 22:13:46,354 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 22:13:46,354 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 62 transitions. [2019-11-15 22:13:46,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 22:13:46,356 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:13:46,356 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:13:46,356 INFO L410 AbstractCegarLoop]: === Iteration 2 === [fooErr0REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-15 22:13:46,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:13:46,357 INFO L82 PathProgramCache]: Analyzing trace with hash 920023712, now seen corresponding path program 1 times [2019-11-15 22:13:46,357 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:13:46,358 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984050918] [2019-11-15 22:13:46,358 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:13:46,358 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:13:46,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:13:46,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:13:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:13:46,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:13:46,496 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984050918] [2019-11-15 22:13:46,496 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:13:46,496 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 22:13:46,496 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541692026] [2019-11-15 22:13:46,498 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 22:13:46,498 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:13:46,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 22:13:46,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:13:46,499 INFO L87 Difference]: Start difference. First operand 59 states and 62 transitions. Second operand 4 states. [2019-11-15 22:13:46,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:13:46,628 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2019-11-15 22:13:46,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 22:13:46,629 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-15 22:13:46,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:13:46,630 INFO L225 Difference]: With dead ends: 58 [2019-11-15 22:13:46,630 INFO L226 Difference]: Without dead ends: 58 [2019-11-15 22:13:46,631 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:13:46,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-11-15 22:13:46,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2019-11-15 22:13:46,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-11-15 22:13:46,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2019-11-15 22:13:46,637 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 10 [2019-11-15 22:13:46,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:13:46,637 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2019-11-15 22:13:46,637 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 22:13:46,637 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2019-11-15 22:13:46,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 22:13:46,638 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:13:46,638 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:13:46,639 INFO L410 AbstractCegarLoop]: === Iteration 3 === [fooErr0REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-15 22:13:46,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:13:46,639 INFO L82 PathProgramCache]: Analyzing trace with hash 920023713, now seen corresponding path program 1 times [2019-11-15 22:13:46,639 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:13:46,639 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151235574] [2019-11-15 22:13:46,640 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:13:46,640 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:13:46,640 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:13:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:13:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:13:46,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:13:46,732 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151235574] [2019-11-15 22:13:46,733 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:13:46,733 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 22:13:46,733 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838354600] [2019-11-15 22:13:46,733 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 22:13:46,733 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:13:46,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 22:13:46,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 22:13:46,738 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand 5 states. [2019-11-15 22:13:46,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:13:46,939 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2019-11-15 22:13:46,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:13:46,939 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-11-15 22:13:46,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:13:46,940 INFO L225 Difference]: With dead ends: 57 [2019-11-15 22:13:46,940 INFO L226 Difference]: Without dead ends: 57 [2019-11-15 22:13:46,941 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-15 22:13:46,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-11-15 22:13:46,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-11-15 22:13:46,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-11-15 22:13:46,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2019-11-15 22:13:46,946 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 10 [2019-11-15 22:13:46,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:13:46,947 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2019-11-15 22:13:46,947 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 22:13:46,947 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2019-11-15 22:13:46,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-15 22:13:46,948 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:13:46,948 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:13:46,948 INFO L410 AbstractCegarLoop]: === Iteration 4 === [fooErr0REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-15 22:13:46,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:13:46,949 INFO L82 PathProgramCache]: Analyzing trace with hash 944956531, now seen corresponding path program 1 times [2019-11-15 22:13:46,949 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:13:46,949 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514255382] [2019-11-15 22:13:46,949 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:13:46,949 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:13:46,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:13:46,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:13:47,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:13:47,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:13:47,041 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514255382] [2019-11-15 22:13:47,041 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:13:47,041 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 22:13:47,041 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128081993] [2019-11-15 22:13:47,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 22:13:47,042 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:13:47,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 22:13:47,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:13:47,043 INFO L87 Difference]: Start difference. First operand 57 states and 60 transitions. Second operand 4 states. [2019-11-15 22:13:47,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:13:47,227 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2019-11-15 22:13:47,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 22:13:47,227 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-11-15 22:13:47,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:13:47,228 INFO L225 Difference]: With dead ends: 54 [2019-11-15 22:13:47,228 INFO L226 Difference]: Without dead ends: 54 [2019-11-15 22:13:47,229 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 22:13:47,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-11-15 22:13:47,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2019-11-15 22:13:47,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-11-15 22:13:47,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2019-11-15 22:13:47,234 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 15 [2019-11-15 22:13:47,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:13:47,234 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2019-11-15 22:13:47,234 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 22:13:47,234 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2019-11-15 22:13:47,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-15 22:13:47,235 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:13:47,235 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:13:47,236 INFO L410 AbstractCegarLoop]: === Iteration 5 === [fooErr0REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-15 22:13:47,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:13:47,236 INFO L82 PathProgramCache]: Analyzing trace with hash 944956532, now seen corresponding path program 1 times [2019-11-15 22:13:47,236 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:13:47,237 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914235427] [2019-11-15 22:13:47,237 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:13:47,237 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:13:47,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:13:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:13:47,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:13:47,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:13:47,425 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914235427] [2019-11-15 22:13:47,425 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:13:47,425 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 22:13:47,425 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484415112] [2019-11-15 22:13:47,426 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 22:13:47,426 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:13:47,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 22:13:47,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-15 22:13:47,427 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand 7 states. [2019-11-15 22:13:47,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:13:47,703 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2019-11-15 22:13:47,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 22:13:47,704 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-11-15 22:13:47,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:13:47,706 INFO L225 Difference]: With dead ends: 62 [2019-11-15 22:13:47,706 INFO L226 Difference]: Without dead ends: 62 [2019-11-15 22:13:47,707 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-11-15 22:13:47,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-11-15 22:13:47,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2019-11-15 22:13:47,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-11-15 22:13:47,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2019-11-15 22:13:47,713 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 15 [2019-11-15 22:13:47,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:13:47,713 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2019-11-15 22:13:47,713 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 22:13:47,713 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2019-11-15 22:13:47,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-15 22:13:47,714 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:13:47,714 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:13:47,715 INFO L410 AbstractCegarLoop]: === Iteration 6 === [fooErr0REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-15 22:13:47,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:13:47,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1984403550, now seen corresponding path program 1 times [2019-11-15 22:13:47,715 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:13:47,715 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380862753] [2019-11-15 22:13:47,715 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:13:47,716 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:13:47,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:13:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:13:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:13:47,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:13:47,825 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380862753] [2019-11-15 22:13:47,826 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304423343] [2019-11-15 22:13:47,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_697d622d-ac72-4804-ae4e-2daca34556ae/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:13:47,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:13:47,962 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:13:47,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:13:48,020 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:13:48,021 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 22:13:48,021 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2019-11-15 22:13:48,021 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9224126] [2019-11-15 22:13:48,022 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 22:13:48,022 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:13:48,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 22:13:48,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-15 22:13:48,023 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand 5 states. [2019-11-15 22:13:48,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:13:48,084 INFO L93 Difference]: Finished difference Result 96 states and 100 transitions. [2019-11-15 22:13:48,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 22:13:48,086 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2019-11-15 22:13:48,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:13:48,087 INFO L225 Difference]: With dead ends: 96 [2019-11-15 22:13:48,088 INFO L226 Difference]: Without dead ends: 96 [2019-11-15 22:13:48,088 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-15 22:13:48,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-11-15 22:13:48,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 69. [2019-11-15 22:13:48,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-11-15 22:13:48,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2019-11-15 22:13:48,104 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 18 [2019-11-15 22:13:48,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:13:48,105 INFO L462 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2019-11-15 22:13:48,105 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 22:13:48,105 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2019-11-15 22:13:48,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-15 22:13:48,106 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:13:48,106 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:13:48,307 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:13:48,308 INFO L410 AbstractCegarLoop]: === Iteration 7 === [fooErr0REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-15 22:13:48,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:13:48,308 INFO L82 PathProgramCache]: Analyzing trace with hash 813250499, now seen corresponding path program 1 times [2019-11-15 22:13:48,308 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:13:48,309 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697333362] [2019-11-15 22:13:48,309 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:13:48,309 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:13:48,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:13:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:13:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:13:48,430 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-15 22:13:48,430 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697333362] [2019-11-15 22:13:48,430 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298637436] [2019-11-15 22:13:48,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_697d622d-ac72-4804-ae4e-2daca34556ae/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:13:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:13:48,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-15 22:13:48,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:13:48,621 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_14|], 1=[|v_#valid_32|]} [2019-11-15 22:13:48,629 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-15 22:13:48,638 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2019-11-15 22:13:48,638 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 22:13:48,650 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 22:13:48,659 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-15 22:13:48,659 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 22:13:48,668 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 22:13:48,672 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-15 22:13:48,672 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:33 [2019-11-15 22:13:48,784 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:13:48,784 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:13:48,785 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2019-11-15 22:13:48,785 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158243685] [2019-11-15 22:13:48,785 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-15 22:13:48,785 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:13:48,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-15 22:13:48,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-11-15 22:13:48,786 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand 12 states. [2019-11-15 22:13:49,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:13:49,827 INFO L93 Difference]: Finished difference Result 111 states and 116 transitions. [2019-11-15 22:13:49,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-15 22:13:49,827 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 20 [2019-11-15 22:13:49,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:13:49,829 INFO L225 Difference]: With dead ends: 111 [2019-11-15 22:13:49,829 INFO L226 Difference]: Without dead ends: 111 [2019-11-15 22:13:49,829 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2019-11-15 22:13:49,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-11-15 22:13:49,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 71. [2019-11-15 22:13:49,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-11-15 22:13:49,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2019-11-15 22:13:49,836 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 20 [2019-11-15 22:13:49,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:13:49,836 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2019-11-15 22:13:49,837 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-15 22:13:49,837 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2019-11-15 22:13:49,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-15 22:13:49,837 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:13:49,838 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:13:50,045 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:13:50,045 INFO L410 AbstractCegarLoop]: === Iteration 8 === [fooErr0REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-15 22:13:50,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:13:50,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1526472291, now seen corresponding path program 1 times [2019-11-15 22:13:50,046 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:13:50,046 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842969893] [2019-11-15 22:13:50,047 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:13:50,047 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:13:50,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:13:50,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:13:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:13:50,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:13:50,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 22:13:50,123 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842969893] [2019-11-15 22:13:50,123 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:13:50,123 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 22:13:50,124 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598136788] [2019-11-15 22:13:50,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 22:13:50,124 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:13:50,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 22:13:50,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 22:13:50,125 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand 5 states. [2019-11-15 22:13:50,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:13:50,300 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2019-11-15 22:13:50,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 22:13:50,300 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-15 22:13:50,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:13:50,301 INFO L225 Difference]: With dead ends: 69 [2019-11-15 22:13:50,301 INFO L226 Difference]: Without dead ends: 69 [2019-11-15 22:13:50,301 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-15 22:13:50,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-11-15 22:13:50,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2019-11-15 22:13:50,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-11-15 22:13:50,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2019-11-15 22:13:50,307 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 22 [2019-11-15 22:13:50,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:13:50,307 INFO L462 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2019-11-15 22:13:50,307 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 22:13:50,307 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2019-11-15 22:13:50,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-15 22:13:50,308 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:13:50,308 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:13:50,308 INFO L410 AbstractCegarLoop]: === Iteration 9 === [fooErr0REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-15 22:13:50,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:13:50,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1526472292, now seen corresponding path program 1 times [2019-11-15 22:13:50,309 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:13:50,309 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746359972] [2019-11-15 22:13:50,309 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:13:50,309 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:13:50,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:13:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:13:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:13:50,359 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:13:50,359 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 22:13:50,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:13:50 BoogieIcfgContainer [2019-11-15 22:13:50,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:13:50,392 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:13:50,392 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:13:50,392 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:13:50,393 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:13:45" (3/4) ... [2019-11-15 22:13:50,394 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-15 22:13:50,452 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_697d622d-ac72-4804-ae4e-2daca34556ae/bin/uautomizer/witness.graphml [2019-11-15 22:13:50,452 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:13:50,454 INFO L168 Benchmark]: Toolchain (without parser) took 5772.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 211.8 MB). Free memory was 944.7 MB in the beginning and 961.3 MB in the end (delta: -16.5 MB). Peak memory consumption was 195.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:13:50,454 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:13:50,455 INFO L168 Benchmark]: CACSL2BoogieTranslator took 611.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -168.3 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-15 22:13:50,456 INFO L168 Benchmark]: Boogie Preprocessor took 54.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:13:50,457 INFO L168 Benchmark]: RCFGBuilder took 515.49 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: 55.1 MB). Peak memory consumption was 55.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:13:50,459 INFO L168 Benchmark]: TraceAbstraction took 4523.68 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 75.0 MB). Free memory was 1.1 GB in the beginning and 963.9 MB in the end (delta: 94.0 MB). Peak memory consumption was 169.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:13:50,463 INFO L168 Benchmark]: Witness Printer took 60.89 ms. Allocated memory is still 1.2 GB. Free memory was 963.9 MB in the beginning and 961.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:13:50,464 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 611.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -168.3 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 515.49 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: 55.1 MB). Peak memory consumption was 55.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4523.68 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 75.0 MB). Free memory was 1.1 GB in the beginning and 963.9 MB in the end (delta: 94.0 MB). Peak memory consumption was 169.0 MB. Max. memory is 11.5 GB. * Witness Printer took 60.89 ms. Allocated memory is still 1.2 GB. Free memory was 963.9 MB in the beginning and 961.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 533]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L512] int *a, *b; [L513] int n; VAL [\old(a)=9, \old(a)=7, \old(b)=5, \old(b)=10, \old(n)=8, a={0:0}, b={0:0}, n=0] [L525] n = 1 VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={0:0}, b={0:0}, n=1] [L526] COND FALSE !(__VERIFIER_nondet_int() && n < 30) [L529] a = malloc(n * sizeof(*a)) [L530] b = malloc(n * sizeof(*b)) [L531] EXPR b++ VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={1:0}, b={-1:4}, b++={-1:0}, malloc(n * sizeof(*a))={1:0}, malloc(n * sizeof(*b))={-1:0}, n=1] [L531] *b++ = 0 VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={1:0}, b={-1:4}, b++={-1:0}, malloc(n * sizeof(*a))={1:0}, malloc(n * sizeof(*b))={-1:0}, n=1] [L532] CALL foo() VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={1:0}, b={-1:4}, n=1] [L517] int i; [L518] i = 0 VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={1:0}, b={-1:4}, i=0, n=1] [L518] COND TRUE i < n VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={1:0}, b={-1:4}, i=0, n=1] [L519] a[i] = n VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={1:0}, b={-1:4}, i=0, n=1] [L518] i++ VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={1:0}, b={-1:4}, i=1, n=1] [L518] COND FALSE !(i < n) VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={1:0}, b={-1:4}, i=1, n=1] [L520] i = 0 VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={1:0}, b={-1:4}, i=0, n=1] [L520] COND FALSE !(i < n - 1) VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={1:0}, b={-1:4}, i=0, n=1] [L532] RET foo() VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={1:0}, b={-1:4}, malloc(n * sizeof(*a))={1:0}, malloc(n * sizeof(*b))={-1:0}, n=1] [L533] b[-2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 77 locations, 21 error locations. Result: UNSAFE, OverallTime: 4.4s, OverallIterations: 9, TraceHistogramMax: 2, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 348 SDtfs, 618 SDslu, 422 SDs, 0 SdLazy, 873 SolverSat, 94 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=7, 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, 8 MinimizatonAttempts, 75 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 147 ConstructedInterpolants, 9 QuantifiedInterpolants, 17310 SizeOfPredicates, 7 NumberOfNonLiveVariables, 264 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 9/13 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...