./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/cstrchr-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4dd6cf14-a75d-4d9c-acd9-8ab7c1a58cd0/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4dd6cf14-a75d-4d9c-acd9-8ab7c1a58cd0/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4dd6cf14-a75d-4d9c-acd9-8ab7c1a58cd0/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4dd6cf14-a75d-4d9c-acd9-8ab7c1a58cd0/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrchr-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4dd6cf14-a75d-4d9c-acd9-8ab7c1a58cd0/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4dd6cf14-a75d-4d9c-acd9-8ab7c1a58cd0/bin-2019/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 b77e20ecf2782844251cc1f0f4840606114db633 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 08:33:54,011 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 08:33:54,012 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 08:33:54,020 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 08:33:54,020 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 08:33:54,020 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 08:33:54,021 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 08:33:54,022 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 08:33:54,023 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 08:33:54,024 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 08:33:54,024 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 08:33:54,024 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 08:33:54,025 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 08:33:54,026 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 08:33:54,026 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 08:33:54,027 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 08:33:54,027 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 08:33:54,029 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 08:33:54,030 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 08:33:54,031 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 08:33:54,032 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 08:33:54,033 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 08:33:54,034 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 08:33:54,034 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 08:33:54,035 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 08:33:54,035 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 08:33:54,036 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 08:33:54,037 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 08:33:54,037 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 08:33:54,038 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 08:33:54,038 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 08:33:54,039 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 08:33:54,039 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 08:33:54,039 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 08:33:54,039 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 08:33:54,040 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 08:33:54,040 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4dd6cf14-a75d-4d9c-acd9-8ab7c1a58cd0/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-12-08 08:33:54,050 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 08:33:54,050 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 08:33:54,051 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 08:33:54,051 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 08:33:54,051 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 08:33:54,052 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 08:33:54,052 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 08:33:54,052 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 08:33:54,052 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 08:33:54,052 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 08:33:54,052 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 08:33:54,052 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 08:33:54,052 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 08:33:54,052 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 08:33:54,052 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 08:33:54,053 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 08:33:54,053 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 08:33:54,053 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 08:33:54,053 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 08:33:54,053 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 08:33:54,053 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 08:33:54,053 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 08:33:54,054 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 08:33:54,054 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 08:33:54,054 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 08:33:54,054 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 08:33:54,054 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 08:33:54,054 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 08:33:54,054 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_4dd6cf14-a75d-4d9c-acd9-8ab7c1a58cd0/bin-2019/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 -> b77e20ecf2782844251cc1f0f4840606114db633 [2018-12-08 08:33:54,073 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 08:33:54,080 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 08:33:54,082 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 08:33:54,083 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 08:33:54,083 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 08:33:54,084 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4dd6cf14-a75d-4d9c-acd9-8ab7c1a58cd0/bin-2019/uautomizer/../../sv-benchmarks/c/array-memsafety/cstrchr-alloca_true-valid-memsafety_true-termination.i [2018-12-08 08:33:54,119 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4dd6cf14-a75d-4d9c-acd9-8ab7c1a58cd0/bin-2019/uautomizer/data/aaf0c4eed/fe371ff7a11c4f1a962e722b94508602/FLAG9de079515 [2018-12-08 08:33:54,487 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 08:33:54,487 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4dd6cf14-a75d-4d9c-acd9-8ab7c1a58cd0/sv-benchmarks/c/array-memsafety/cstrchr-alloca_true-valid-memsafety_true-termination.i [2018-12-08 08:33:54,493 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4dd6cf14-a75d-4d9c-acd9-8ab7c1a58cd0/bin-2019/uautomizer/data/aaf0c4eed/fe371ff7a11c4f1a962e722b94508602/FLAG9de079515 [2018-12-08 08:33:54,501 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4dd6cf14-a75d-4d9c-acd9-8ab7c1a58cd0/bin-2019/uautomizer/data/aaf0c4eed/fe371ff7a11c4f1a962e722b94508602 [2018-12-08 08:33:54,503 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 08:33:54,503 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-08 08:33:54,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 08:33:54,504 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 08:33:54,506 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 08:33:54,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:33:54" (1/1) ... [2018-12-08 08:33:54,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fae00da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:33:54, skipping insertion in model container [2018-12-08 08:33:54,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:33:54" (1/1) ... [2018-12-08 08:33:54,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 08:33:54,530 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 08:33:54,671 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:33:54,678 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 08:33:54,735 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:33:54,754 INFO L195 MainTranslator]: Completed translation [2018-12-08 08:33:54,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:33:54 WrapperNode [2018-12-08 08:33:54,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 08:33:54,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 08:33:54,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 08:33:54,755 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 08:33:54,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:33:54" (1/1) ... [2018-12-08 08:33:54,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:33:54" (1/1) ... [2018-12-08 08:33:54,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:33:54" (1/1) ... [2018-12-08 08:33:54,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:33:54" (1/1) ... [2018-12-08 08:33:54,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:33:54" (1/1) ... [2018-12-08 08:33:54,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:33:54" (1/1) ... [2018-12-08 08:33:54,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:33:54" (1/1) ... [2018-12-08 08:33:54,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 08:33:54,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 08:33:54,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 08:33:54,781 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 08:33:54,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:33:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4dd6cf14-a75d-4d9c-acd9-8ab7c1a58cd0/bin-2019/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 [2018-12-08 08:33:54,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 08:33:54,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 08:33:54,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-12-08 08:33:54,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-12-08 08:33:54,812 INFO L138 BoogieDeclarations]: Found implementation of procedure cstrchr [2018-12-08 08:33:54,812 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 08:33:54,812 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-12-08 08:33:54,812 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-12-08 08:33:54,812 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-08 08:33:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-08 08:33:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-08 08:33:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-08 08:33:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-08 08:33:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-08 08:33:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-08 08:33:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-08 08:33:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-08 08:33:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-08 08:33:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-08 08:33:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-08 08:33:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-08 08:33:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-08 08:33:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-08 08:33:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-08 08:33:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-08 08:33:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-08 08:33:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-08 08:33:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-08 08:33:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-08 08:33:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-08 08:33:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-08 08:33:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-08 08:33:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-08 08:33:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-08 08:33:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-08 08:33:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-08 08:33:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-08 08:33:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-08 08:33:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-08 08:33:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-08 08:33:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-08 08:33:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-08 08:33:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-08 08:33:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-08 08:33:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-08 08:33:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-08 08:33:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-08 08:33:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-08 08:33:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-08 08:33:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-08 08:33:54,817 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-08 08:33:54,817 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-08 08:33:54,817 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-08 08:33:54,817 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-08 08:33:54,817 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-08 08:33:54,817 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-08 08:33:54,817 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-08 08:33:54,817 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-08 08:33:54,817 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-08 08:33:54,817 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-08 08:33:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-08 08:33:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-08 08:33:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-08 08:33:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-08 08:33:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-08 08:33:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-08 08:33:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-08 08:33:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-08 08:33:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-08 08:33:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-08 08:33:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-08 08:33:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-08 08:33:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-08 08:33:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-08 08:33:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-08 08:33:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-08 08:33:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-08 08:33:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-08 08:33:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-08 08:33:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-08 08:33:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-08 08:33:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-08 08:33:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-08 08:33:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-08 08:33:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-08 08:33:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-08 08:33:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-08 08:33:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-08 08:33:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-08 08:33:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-08 08:33:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-08 08:33:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-08 08:33:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-08 08:33:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-08 08:33:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-08 08:33:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-08 08:33:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-08 08:33:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-08 08:33:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-08 08:33:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-08 08:33:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-08 08:33:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-08 08:33:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-08 08:33:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-08 08:33:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-08 08:33:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-08 08:33:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-08 08:33:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-08 08:33:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-12-08 08:33:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure cstrchr [2018-12-08 08:33:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 08:33:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 08:33:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 08:33:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 08:33:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 08:33:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 08:33:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 08:33:55,002 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 08:33:55,002 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-08 08:33:55,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:33:55 BoogieIcfgContainer [2018-12-08 08:33:55,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 08:33:55,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 08:33:55,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 08:33:55,005 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 08:33:55,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 08:33:54" (1/3) ... [2018-12-08 08:33:55,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aed82a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:33:55, skipping insertion in model container [2018-12-08 08:33:55,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:33:54" (2/3) ... [2018-12-08 08:33:55,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aed82a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:33:55, skipping insertion in model container [2018-12-08 08:33:55,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:33:55" (3/3) ... [2018-12-08 08:33:55,007 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrchr-alloca_true-valid-memsafety_true-termination.i [2018-12-08 08:33:55,012 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 08:33:55,017 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-12-08 08:33:55,025 INFO L257 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2018-12-08 08:33:55,039 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 08:33:55,039 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 08:33:55,039 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-08 08:33:55,040 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 08:33:55,040 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 08:33:55,040 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 08:33:55,040 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 08:33:55,040 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 08:33:55,040 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 08:33:55,048 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-12-08 08:33:55,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 08:33:55,053 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:33:55,054 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:33:55,055 INFO L423 AbstractCegarLoop]: === Iteration 1 === [cstrchrErr5REQUIRES_VIOLATION, cstrchrErr4REQUIRES_VIOLATION, cstrchrErr3REQUIRES_VIOLATION, cstrchrErr2REQUIRES_VIOLATION, cstrchrErr1REQUIRES_VIOLATION, cstrchrErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2018-12-08 08:33:55,058 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:33:55,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1038358777, now seen corresponding path program 1 times [2018-12-08 08:33:55,059 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:33:55,060 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:33:55,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:33:55,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:33:55,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:33:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:33:55,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:33:55,146 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:33:55,147 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 08:33:55,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 08:33:55,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 08:33:55,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:33:55,158 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2018-12-08 08:33:55,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:33:55,186 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2018-12-08 08:33:55,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 08:33:55,187 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-08 08:33:55,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:33:55,193 INFO L225 Difference]: With dead ends: 36 [2018-12-08 08:33:55,193 INFO L226 Difference]: Without dead ends: 33 [2018-12-08 08:33:55,194 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:33:55,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-12-08 08:33:55,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-12-08 08:33:55,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-08 08:33:55,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2018-12-08 08:33:55,216 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 9 [2018-12-08 08:33:55,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:33:55,217 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2018-12-08 08:33:55,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 08:33:55,217 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2018-12-08 08:33:55,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 08:33:55,217 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:33:55,217 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:33:55,217 INFO L423 AbstractCegarLoop]: === Iteration 2 === [cstrchrErr5REQUIRES_VIOLATION, cstrchrErr4REQUIRES_VIOLATION, cstrchrErr3REQUIRES_VIOLATION, cstrchrErr2REQUIRES_VIOLATION, cstrchrErr1REQUIRES_VIOLATION, cstrchrErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2018-12-08 08:33:55,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:33:55,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1038358776, now seen corresponding path program 1 times [2018-12-08 08:33:55,218 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:33:55,218 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:33:55,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:33:55,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:33:55,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:33:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:33:55,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:33:55,279 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:33:55,279 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 08:33:55,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 08:33:55,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 08:33:55,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 08:33:55,280 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 4 states. [2018-12-08 08:33:55,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:33:55,293 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2018-12-08 08:33:55,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 08:33:55,293 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-12-08 08:33:55,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:33:55,294 INFO L225 Difference]: With dead ends: 32 [2018-12-08 08:33:55,294 INFO L226 Difference]: Without dead ends: 32 [2018-12-08 08:33:55,294 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 08:33:55,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-12-08 08:33:55,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-12-08 08:33:55,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-08 08:33:55,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2018-12-08 08:33:55,297 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 9 [2018-12-08 08:33:55,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:33:55,298 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2018-12-08 08:33:55,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 08:33:55,298 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2018-12-08 08:33:55,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 08:33:55,298 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:33:55,298 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:33:55,298 INFO L423 AbstractCegarLoop]: === Iteration 3 === [cstrchrErr5REQUIRES_VIOLATION, cstrchrErr4REQUIRES_VIOLATION, cstrchrErr3REQUIRES_VIOLATION, cstrchrErr2REQUIRES_VIOLATION, cstrchrErr1REQUIRES_VIOLATION, cstrchrErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2018-12-08 08:33:55,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:33:55,299 INFO L82 PathProgramCache]: Analyzing trace with hash -197265354, now seen corresponding path program 1 times [2018-12-08 08:33:55,299 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:33:55,299 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:33:55,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:33:55,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:33:55,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:33:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:33:55,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:33:55,332 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:33:55,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 08:33:55,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 08:33:55,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 08:33:55,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 08:33:55,333 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 5 states. [2018-12-08 08:33:55,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:33:55,366 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2018-12-08 08:33:55,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 08:33:55,366 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-12-08 08:33:55,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:33:55,367 INFO L225 Difference]: With dead ends: 29 [2018-12-08 08:33:55,367 INFO L226 Difference]: Without dead ends: 29 [2018-12-08 08:33:55,367 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-08 08:33:55,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-12-08 08:33:55,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-12-08 08:33:55,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-12-08 08:33:55,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2018-12-08 08:33:55,369 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 13 [2018-12-08 08:33:55,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:33:55,369 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2018-12-08 08:33:55,369 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 08:33:55,369 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2018-12-08 08:33:55,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 08:33:55,370 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:33:55,370 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:33:55,370 INFO L423 AbstractCegarLoop]: === Iteration 4 === [cstrchrErr5REQUIRES_VIOLATION, cstrchrErr4REQUIRES_VIOLATION, cstrchrErr3REQUIRES_VIOLATION, cstrchrErr2REQUIRES_VIOLATION, cstrchrErr1REQUIRES_VIOLATION, cstrchrErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2018-12-08 08:33:55,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:33:55,370 INFO L82 PathProgramCache]: Analyzing trace with hash -197265353, now seen corresponding path program 1 times [2018-12-08 08:33:55,370 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:33:55,370 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:33:55,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:33:55,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:33:55,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:33:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:33:55,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:33:55,418 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:33:55,418 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 08:33:55,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 08:33:55,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 08:33:55,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-08 08:33:55,419 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 7 states. [2018-12-08 08:33:55,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:33:55,468 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2018-12-08 08:33:55,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 08:33:55,468 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-12-08 08:33:55,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:33:55,470 INFO L225 Difference]: With dead ends: 40 [2018-12-08 08:33:55,470 INFO L226 Difference]: Without dead ends: 40 [2018-12-08 08:33:55,470 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-12-08 08:33:55,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-12-08 08:33:55,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2018-12-08 08:33:55,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-08 08:33:55,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2018-12-08 08:33:55,474 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 13 [2018-12-08 08:33:55,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:33:55,474 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2018-12-08 08:33:55,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 08:33:55,474 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2018-12-08 08:33:55,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 08:33:55,474 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:33:55,474 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:33:55,475 INFO L423 AbstractCegarLoop]: === Iteration 5 === [cstrchrErr5REQUIRES_VIOLATION, cstrchrErr4REQUIRES_VIOLATION, cstrchrErr3REQUIRES_VIOLATION, cstrchrErr2REQUIRES_VIOLATION, cstrchrErr1REQUIRES_VIOLATION, cstrchrErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2018-12-08 08:33:55,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:33:55,475 INFO L82 PathProgramCache]: Analyzing trace with hash 930134862, now seen corresponding path program 1 times [2018-12-08 08:33:55,475 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:33:55,475 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:33:55,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:33:55,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:33:55,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:33:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:33:55,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:33:55,492 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:33:55,492 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 08:33:55,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 08:33:55,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 08:33:55,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:33:55,493 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 3 states. [2018-12-08 08:33:55,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:33:55,498 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2018-12-08 08:33:55,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 08:33:55,498 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-12-08 08:33:55,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:33:55,498 INFO L225 Difference]: With dead ends: 38 [2018-12-08 08:33:55,498 INFO L226 Difference]: Without dead ends: 38 [2018-12-08 08:33:55,498 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:33:55,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-08 08:33:55,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-12-08 08:33:55,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-08 08:33:55,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2018-12-08 08:33:55,501 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 17 [2018-12-08 08:33:55,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:33:55,501 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2018-12-08 08:33:55,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 08:33:55,501 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2018-12-08 08:33:55,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 08:33:55,501 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:33:55,501 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:33:55,501 INFO L423 AbstractCegarLoop]: === Iteration 6 === [cstrchrErr5REQUIRES_VIOLATION, cstrchrErr4REQUIRES_VIOLATION, cstrchrErr3REQUIRES_VIOLATION, cstrchrErr2REQUIRES_VIOLATION, cstrchrErr1REQUIRES_VIOLATION, cstrchrErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2018-12-08 08:33:55,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:33:55,502 INFO L82 PathProgramCache]: Analyzing trace with hash 500544395, now seen corresponding path program 1 times [2018-12-08 08:33:55,502 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:33:55,502 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:33:55,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:33:55,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:33:55,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:33:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:33:55,587 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:33:55,588 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:33:55,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-08 08:33:55,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 08:33:55,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 08:33:55,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-12-08 08:33:55,588 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand 9 states. [2018-12-08 08:33:55,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:33:55,663 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2018-12-08 08:33:55,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 08:33:55,663 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-12-08 08:33:55,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:33:55,664 INFO L225 Difference]: With dead ends: 55 [2018-12-08 08:33:55,664 INFO L226 Difference]: Without dead ends: 55 [2018-12-08 08:33:55,664 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-12-08 08:33:55,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-12-08 08:33:55,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 52. [2018-12-08 08:33:55,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-12-08 08:33:55,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2018-12-08 08:33:55,667 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 19 [2018-12-08 08:33:55,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:33:55,668 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2018-12-08 08:33:55,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 08:33:55,668 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2018-12-08 08:33:55,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 08:33:55,668 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:33:55,668 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:33:55,669 INFO L423 AbstractCegarLoop]: === Iteration 7 === [cstrchrErr5REQUIRES_VIOLATION, cstrchrErr4REQUIRES_VIOLATION, cstrchrErr3REQUIRES_VIOLATION, cstrchrErr2REQUIRES_VIOLATION, cstrchrErr1REQUIRES_VIOLATION, cstrchrErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2018-12-08 08:33:55,669 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:33:55,669 INFO L82 PathProgramCache]: Analyzing trace with hash -86261619, now seen corresponding path program 1 times [2018-12-08 08:33:55,669 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:33:55,669 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:33:55,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:33:55,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:33:55,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:33:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:33:55,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:33:55,788 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:33:55,788 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4dd6cf14-a75d-4d9c-acd9-8ab7c1a58cd0/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 08:33:55,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:33:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:33:55,810 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:33:55,839 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-08 08:33:55,841 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-12-08 08:33:55,841 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:33:55,843 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:33:55,850 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 08:33:55,850 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-12-08 08:33:55,910 INFO L478 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 18 treesize of output 14 [2018-12-08 08:33:55,916 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 11 [2018-12-08 08:33:55,916 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-12-08 08:33:55,919 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-08 08:33:55,932 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-12-08 08:33:55,932 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:34, output treesize:33 [2018-12-08 08:33:55,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:33:56,010 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:33:56,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 16 [2018-12-08 08:33:56,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-08 08:33:56,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-08 08:33:56,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2018-12-08 08:33:56,011 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand 17 states. [2018-12-08 08:33:56,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:33:56,456 INFO L93 Difference]: Finished difference Result 73 states and 84 transitions. [2018-12-08 08:33:56,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-08 08:33:56,456 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 19 [2018-12-08 08:33:56,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:33:56,457 INFO L225 Difference]: With dead ends: 73 [2018-12-08 08:33:56,457 INFO L226 Difference]: Without dead ends: 73 [2018-12-08 08:33:56,457 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=110, Invalid=490, Unknown=0, NotChecked=0, Total=600 [2018-12-08 08:33:56,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-12-08 08:33:56,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 58. [2018-12-08 08:33:56,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-12-08 08:33:56,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 66 transitions. [2018-12-08 08:33:56,460 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 66 transitions. Word has length 19 [2018-12-08 08:33:56,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:33:56,461 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 66 transitions. [2018-12-08 08:33:56,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-08 08:33:56,461 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 66 transitions. [2018-12-08 08:33:56,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 08:33:56,461 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:33:56,461 INFO L402 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, 1] [2018-12-08 08:33:56,461 INFO L423 AbstractCegarLoop]: === Iteration 8 === [cstrchrErr5REQUIRES_VIOLATION, cstrchrErr4REQUIRES_VIOLATION, cstrchrErr3REQUIRES_VIOLATION, cstrchrErr2REQUIRES_VIOLATION, cstrchrErr1REQUIRES_VIOLATION, cstrchrErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2018-12-08 08:33:56,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:33:56,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1178535163, now seen corresponding path program 1 times [2018-12-08 08:33:56,461 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:33:56,461 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:33:56,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:33:56,462 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:33:56,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:33:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:33:56,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:33:56,489 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:33:56,489 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 08:33:56,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 08:33:56,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 08:33:56,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 08:33:56,489 INFO L87 Difference]: Start difference. First operand 58 states and 66 transitions. Second operand 4 states. [2018-12-08 08:33:56,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:33:56,512 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2018-12-08 08:33:56,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 08:33:56,512 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-12-08 08:33:56,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:33:56,512 INFO L225 Difference]: With dead ends: 57 [2018-12-08 08:33:56,512 INFO L226 Difference]: Without dead ends: 35 [2018-12-08 08:33:56,513 INFO L631 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 [2018-12-08 08:33:56,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-12-08 08:33:56,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-12-08 08:33:56,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-12-08 08:33:56,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2018-12-08 08:33:56,514 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 23 [2018-12-08 08:33:56,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:33:56,514 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2018-12-08 08:33:56,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 08:33:56,515 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2018-12-08 08:33:56,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 08:33:56,515 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:33:56,515 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:33:56,515 INFO L423 AbstractCegarLoop]: === Iteration 9 === [cstrchrErr5REQUIRES_VIOLATION, cstrchrErr4REQUIRES_VIOLATION, cstrchrErr3REQUIRES_VIOLATION, cstrchrErr2REQUIRES_VIOLATION, cstrchrErr1REQUIRES_VIOLATION, cstrchrErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2018-12-08 08:33:56,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:33:56,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1638571167, now seen corresponding path program 2 times [2018-12-08 08:33:56,515 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:33:56,515 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:33:56,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:33:56,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:33:56,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:33:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:33:56,713 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:33:56,713 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:33:56,713 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4dd6cf14-a75d-4d9c-acd9-8ab7c1a58cd0/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 08:33:56,719 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-08 08:33:56,729 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-08 08:33:56,729 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:33:56,731 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:33:56,734 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:33:56,734 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:33:56,736 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:33:56,736 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-12-08 08:33:56,747 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-12-08 08:33:56,749 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-12-08 08:33:56,749 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:33:56,750 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:33:56,753 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:33:56,753 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2018-12-08 08:33:56,841 INFO L478 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 20 treesize of output 16 [2018-12-08 08:33:56,846 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 13 [2018-12-08 08:33:56,847 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-12-08 08:33:56,849 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-08 08:33:56,856 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-12-08 08:33:56,856 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:49 [2018-12-08 08:33:56,912 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:33:56,926 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:33:56,926 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2018-12-08 08:33:56,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-08 08:33:56,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-08 08:33:56,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2018-12-08 08:33:56,927 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 18 states. [2018-12-08 08:33:57,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:33:57,401 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2018-12-08 08:33:57,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-08 08:33:57,402 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 25 [2018-12-08 08:33:57,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:33:57,402 INFO L225 Difference]: With dead ends: 33 [2018-12-08 08:33:57,402 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 08:33:57,402 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=162, Invalid=708, Unknown=0, NotChecked=0, Total=870 [2018-12-08 08:33:57,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 08:33:57,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 08:33:57,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 08:33:57,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 08:33:57,403 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-12-08 08:33:57,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:33:57,403 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 08:33:57,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-08 08:33:57,403 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 08:33:57,403 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 08:33:57,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 08:33:57 BoogieIcfgContainer [2018-12-08 08:33:57,406 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 08:33:57,406 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 08:33:57,406 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 08:33:57,406 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 08:33:57,407 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:33:55" (3/4) ... [2018-12-08 08:33:57,409 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 08:33:57,412 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cstrchr [2018-12-08 08:33:57,412 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 08:33:57,413 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2018-12-08 08:33:57,413 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2018-12-08 08:33:57,413 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 08:33:57,415 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-12-08 08:33:57,415 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-08 08:33:57,415 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 08:33:57,441 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4dd6cf14-a75d-4d9c-acd9-8ab7c1a58cd0/bin-2019/uautomizer/witness.graphml [2018-12-08 08:33:57,442 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 08:33:57,442 INFO L168 Benchmark]: Toolchain (without parser) took 2939.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -169.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:33:57,443 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:33:57,443 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -139.0 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-12-08 08:33:57,443 INFO L168 Benchmark]: Boogie Preprocessor took 26.26 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. [2018-12-08 08:33:57,443 INFO L168 Benchmark]: RCFGBuilder took 221.62 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: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. [2018-12-08 08:33:57,444 INFO L168 Benchmark]: TraceAbstraction took 2402.67 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 43.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -85.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:33:57,444 INFO L168 Benchmark]: Witness Printer took 35.54 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: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2018-12-08 08:33:57,445 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 250.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -139.0 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.26 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 221.62 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: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2402.67 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 43.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -85.0 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 35.54 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: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 544]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 544]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 542]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 542]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 542]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 542]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 552]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 43 locations, 9 error locations. SAFE Result, 2.3s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 229 SDtfs, 400 SDslu, 651 SDs, 0 SdLazy, 657 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 22 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 191 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 180 ConstructedInterpolants, 12 QuantifiedInterpolants, 27006 SizeOfPredicates, 14 NumberOfNonLiveVariables, 190 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 3/20 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...