./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/time_var_mutex_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3fca4594-47c2-447b-8a15-dfdc873aca8c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3fca4594-47c2-447b-8a15-dfdc873aca8c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3fca4594-47c2-447b-8a15-dfdc873aca8c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3fca4594-47c2-447b-8a15-dfdc873aca8c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/time_var_mutex_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_3fca4594-47c2-447b-8a15-dfdc873aca8c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3fca4594-47c2-447b-8a15-dfdc873aca8c/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c9be30ae23e057bcf1193492745062121e76eb74 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 06:26:36,855 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 06:26:36,857 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 06:26:36,865 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 06:26:36,865 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 06:26:36,866 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 06:26:36,867 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 06:26:36,868 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 06:26:36,869 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 06:26:36,870 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 06:26:36,870 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 06:26:36,871 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 06:26:36,871 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 06:26:36,872 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 06:26:36,873 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 06:26:36,873 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 06:26:36,874 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 06:26:36,875 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 06:26:36,877 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 06:26:36,878 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 06:26:36,878 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 06:26:36,879 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 06:26:36,881 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 06:26:36,881 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 06:26:36,881 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 06:26:36,882 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 06:26:36,882 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 06:26:36,883 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 06:26:36,883 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 06:26:36,884 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 06:26:36,884 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 06:26:36,885 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 06:26:36,885 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 06:26:36,885 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 06:26:36,886 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 06:26:36,886 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 06:26:36,886 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3fca4594-47c2-447b-8a15-dfdc873aca8c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 06:26:36,896 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 06:26:36,897 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 06:26:36,897 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 06:26:36,897 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 06:26:36,898 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 06:26:36,898 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 06:26:36,898 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 06:26:36,898 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 06:26:36,898 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 06:26:36,898 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 06:26:36,898 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 06:26:36,899 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 06:26:36,899 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 06:26:36,899 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 06:26:36,899 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 06:26:36,899 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 06:26:36,900 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 06:26:36,900 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 06:26:36,900 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 06:26:36,900 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 06:26:36,900 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 06:26:36,900 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 06:26:36,900 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 06:26:36,900 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 06:26:36,901 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 06:26:36,901 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 06:26:36,901 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 06:26:36,901 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 06:26:36,901 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 06:26:36,901 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 06:26:36,901 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 06:26:36,902 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 06:26:36,902 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 06:26:36,902 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 06:26:36,902 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 06:26:36,902 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 06:26:36,902 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 06:26:36,902 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_3fca4594-47c2-447b-8a15-dfdc873aca8c/bin-2019/utaipan 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 ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan 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 -> c9be30ae23e057bcf1193492745062121e76eb74 [2018-11-23 06:26:36,920 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 06:26:36,930 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 06:26:36,932 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 06:26:36,933 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 06:26:36,934 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 06:26:36,934 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3fca4594-47c2-447b-8a15-dfdc873aca8c/bin-2019/utaipan/../../sv-benchmarks/c/pthread-atomic/time_var_mutex_true-unreach-call.i [2018-11-23 06:26:36,972 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3fca4594-47c2-447b-8a15-dfdc873aca8c/bin-2019/utaipan/data/10734c2c8/3582e9ab27c24572b42b05e44465dbde/FLAG462e520ad [2018-11-23 06:26:37,404 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 06:26:37,404 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3fca4594-47c2-447b-8a15-dfdc873aca8c/sv-benchmarks/c/pthread-atomic/time_var_mutex_true-unreach-call.i [2018-11-23 06:26:37,411 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3fca4594-47c2-447b-8a15-dfdc873aca8c/bin-2019/utaipan/data/10734c2c8/3582e9ab27c24572b42b05e44465dbde/FLAG462e520ad [2018-11-23 06:26:37,419 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3fca4594-47c2-447b-8a15-dfdc873aca8c/bin-2019/utaipan/data/10734c2c8/3582e9ab27c24572b42b05e44465dbde [2018-11-23 06:26:37,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 06:26:37,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 06:26:37,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 06:26:37,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 06:26:37,425 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 06:26:37,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:26:37" (1/1) ... [2018-11-23 06:26:37,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25fa39dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:37, skipping insertion in model container [2018-11-23 06:26:37,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:26:37" (1/1) ... [2018-11-23 06:26:37,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 06:26:37,461 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 06:26:37,659 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:26:37,673 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 06:26:37,743 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:26:37,792 INFO L195 MainTranslator]: Completed translation [2018-11-23 06:26:37,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:37 WrapperNode [2018-11-23 06:26:37,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 06:26:37,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 06:26:37,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 06:26:37,793 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 06:26:37,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:37" (1/1) ... [2018-11-23 06:26:37,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:37" (1/1) ... [2018-11-23 06:26:37,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 06:26:37,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 06:26:37,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 06:26:37,826 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 06:26:37,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:37" (1/1) ... [2018-11-23 06:26:37,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:37" (1/1) ... [2018-11-23 06:26:37,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:37" (1/1) ... [2018-11-23 06:26:37,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:37" (1/1) ... [2018-11-23 06:26:37,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:37" (1/1) ... [2018-11-23 06:26:37,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:37" (1/1) ... [2018-11-23 06:26:37,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:37" (1/1) ... [2018-11-23 06:26:37,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 06:26:37,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 06:26:37,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 06:26:37,845 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 06:26:37,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3fca4594-47c2-447b-8a15-dfdc873aca8c/bin-2019/utaipan/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 [2018-11-23 06:26:37,882 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2018-11-23 06:26:37,882 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2018-11-23 06:26:37,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 06:26:37,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 06:26:37,882 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2018-11-23 06:26:37,882 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2018-11-23 06:26:37,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 06:26:37,882 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-11-23 06:26:37,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 06:26:37,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 06:26:37,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 06:26:37,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 06:26:37,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 06:26:37,884 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-23 06:26:38,112 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 06:26:38,112 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-23 06:26:38,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:26:38 BoogieIcfgContainer [2018-11-23 06:26:38,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 06:26:38,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 06:26:38,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 06:26:38,116 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 06:26:38,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:26:37" (1/3) ... [2018-11-23 06:26:38,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c32da14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:26:38, skipping insertion in model container [2018-11-23 06:26:38,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:37" (2/3) ... [2018-11-23 06:26:38,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c32da14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:26:38, skipping insertion in model container [2018-11-23 06:26:38,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:26:38" (3/3) ... [2018-11-23 06:26:38,117 INFO L112 eAbstractionObserver]: Analyzing ICFG time_var_mutex_true-unreach-call.i [2018-11-23 06:26:38,136 WARN L317 ript$VariableManager]: TermVariabe |Thread1_allocator_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:26:38,136 WARN L317 ript$VariableManager]: TermVariabe |Thread1_allocator_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:26:38,136 WARN L317 ript$VariableManager]: TermVariabe Thread1_allocator_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:26:38,136 WARN L317 ript$VariableManager]: TermVariabe Thread1_allocator_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:26:38,137 WARN L317 ript$VariableManager]: TermVariabe |Thread1_allocator_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:26:38,137 WARN L317 ript$VariableManager]: TermVariabe |Thread1_allocator_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:26:38,137 WARN L317 ript$VariableManager]: TermVariabe |Thread1_allocator_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:26:38,137 WARN L317 ript$VariableManager]: TermVariabe |Thread1_allocator_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:26:38,137 WARN L317 ript$VariableManager]: TermVariabe |Thread1_allocator_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:26:38,137 WARN L317 ript$VariableManager]: TermVariabe |Thread1_allocator_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:26:38,138 WARN L317 ript$VariableManager]: TermVariabe |Thread0_de_allocator_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:26:38,138 WARN L317 ript$VariableManager]: TermVariabe |Thread0_de_allocator_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:26:38,138 WARN L317 ript$VariableManager]: TermVariabe Thread0_de_allocator_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:26:38,138 WARN L317 ript$VariableManager]: TermVariabe Thread0_de_allocator_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:26:38,138 WARN L317 ript$VariableManager]: TermVariabe |Thread0_de_allocator_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:26:38,138 WARN L317 ript$VariableManager]: TermVariabe |Thread0_de_allocator_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:26:38,138 WARN L317 ript$VariableManager]: TermVariabe |Thread0_de_allocator_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:26:38,138 WARN L317 ript$VariableManager]: TermVariabe |Thread0_de_allocator_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:26:38,148 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 06:26:38,148 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 06:26:38,153 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-23 06:26:38,162 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-23 06:26:38,178 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 06:26:38,178 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 06:26:38,178 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 06:26:38,179 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 06:26:38,179 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 06:26:38,179 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 06:26:38,179 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 06:26:38,179 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 06:26:38,185 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77places, 80 transitions [2018-11-23 06:26:38,216 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 789 states. [2018-11-23 06:26:38,218 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states. [2018-11-23 06:26:38,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-23 06:26:38,225 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:26:38,225 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:26:38,227 INFO L423 AbstractCegarLoop]: === Iteration 1 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:26:38,230 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:26:38,230 INFO L82 PathProgramCache]: Analyzing trace with hash -450928561, now seen corresponding path program 1 times [2018-11-23 06:26:38,232 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:26:38,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:26:38,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:26:38,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:26:38,270 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:26:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:26:38,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:26:38,393 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:26:38,393 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 06:26:38,393 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:26:38,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 06:26:38,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 06:26:38,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 06:26:38,407 INFO L87 Difference]: Start difference. First operand 789 states. Second operand 3 states. [2018-11-23 06:26:38,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:26:38,441 INFO L93 Difference]: Finished difference Result 789 states and 1906 transitions. [2018-11-23 06:26:38,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 06:26:38,442 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2018-11-23 06:26:38,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:26:38,454 INFO L225 Difference]: With dead ends: 789 [2018-11-23 06:26:38,454 INFO L226 Difference]: Without dead ends: 708 [2018-11-23 06:26:38,455 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 [2018-11-23 06:26:38,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2018-11-23 06:26:38,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2018-11-23 06:26:38,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2018-11-23 06:26:38,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 1705 transitions. [2018-11-23 06:26:38,512 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 1705 transitions. Word has length 37 [2018-11-23 06:26:38,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:26:38,513 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 1705 transitions. [2018-11-23 06:26:38,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 06:26:38,513 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 1705 transitions. [2018-11-23 06:26:38,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-23 06:26:38,514 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:26:38,514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:26:38,515 INFO L423 AbstractCegarLoop]: === Iteration 2 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:26:38,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:26:38,515 INFO L82 PathProgramCache]: Analyzing trace with hash -799836480, now seen corresponding path program 1 times [2018-11-23 06:26:38,515 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:26:38,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:26:38,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:26:38,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:26:38,520 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:26:38,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:26:38,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:26:38,566 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:26:38,566 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 06:26:38,567 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:26:38,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 06:26:38,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 06:26:38,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 06:26:38,569 INFO L87 Difference]: Start difference. First operand 708 states and 1705 transitions. Second operand 3 states. [2018-11-23 06:26:38,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:26:38,589 INFO L93 Difference]: Finished difference Result 717 states and 1676 transitions. [2018-11-23 06:26:38,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 06:26:38,590 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2018-11-23 06:26:38,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:26:38,593 INFO L225 Difference]: With dead ends: 717 [2018-11-23 06:26:38,593 INFO L226 Difference]: Without dead ends: 615 [2018-11-23 06:26:38,594 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 [2018-11-23 06:26:38,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2018-11-23 06:26:38,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 570. [2018-11-23 06:26:38,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2018-11-23 06:26:38,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 1352 transitions. [2018-11-23 06:26:38,607 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 1352 transitions. Word has length 40 [2018-11-23 06:26:38,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:26:38,608 INFO L480 AbstractCegarLoop]: Abstraction has 570 states and 1352 transitions. [2018-11-23 06:26:38,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 06:26:38,609 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 1352 transitions. [2018-11-23 06:26:38,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-23 06:26:38,610 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:26:38,611 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:26:38,611 INFO L423 AbstractCegarLoop]: === Iteration 3 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:26:38,611 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:26:38,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1504033656, now seen corresponding path program 1 times [2018-11-23 06:26:38,611 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:26:38,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:26:38,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:26:38,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:26:38,614 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:26:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:26:38,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:26:38,649 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:26:38,650 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 06:26:38,650 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:26:38,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 06:26:38,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 06:26:38,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 06:26:38,650 INFO L87 Difference]: Start difference. First operand 570 states and 1352 transitions. Second operand 3 states. [2018-11-23 06:26:38,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:26:38,674 INFO L93 Difference]: Finished difference Result 531 states and 1223 transitions. [2018-11-23 06:26:38,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 06:26:38,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2018-11-23 06:26:38,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:26:38,676 INFO L225 Difference]: With dead ends: 531 [2018-11-23 06:26:38,676 INFO L226 Difference]: Without dead ends: 366 [2018-11-23 06:26:38,676 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 [2018-11-23 06:26:38,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2018-11-23 06:26:38,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2018-11-23 06:26:38,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2018-11-23 06:26:38,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 790 transitions. [2018-11-23 06:26:38,684 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 790 transitions. Word has length 42 [2018-11-23 06:26:38,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:26:38,684 INFO L480 AbstractCegarLoop]: Abstraction has 366 states and 790 transitions. [2018-11-23 06:26:38,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 06:26:38,685 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 790 transitions. [2018-11-23 06:26:38,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-23 06:26:38,686 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:26:38,686 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:26:38,686 INFO L423 AbstractCegarLoop]: === Iteration 4 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:26:38,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:26:38,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1891568830, now seen corresponding path program 1 times [2018-11-23 06:26:38,686 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:26:38,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:26:38,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:26:38,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:26:38,689 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:26:38,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:26:38,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:26:38,764 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:26:38,764 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 06:26:38,764 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:26:38,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 06:26:38,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 06:26:38,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-23 06:26:38,765 INFO L87 Difference]: Start difference. First operand 366 states and 790 transitions. Second operand 5 states. [2018-11-23 06:26:38,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:26:38,796 INFO L93 Difference]: Finished difference Result 366 states and 778 transitions. [2018-11-23 06:26:38,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 06:26:38,797 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2018-11-23 06:26:38,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:26:38,798 INFO L225 Difference]: With dead ends: 366 [2018-11-23 06:26:38,798 INFO L226 Difference]: Without dead ends: 306 [2018-11-23 06:26:38,798 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-23 06:26:38,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2018-11-23 06:26:38,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2018-11-23 06:26:38,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2018-11-23 06:26:38,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 638 transitions. [2018-11-23 06:26:38,804 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 638 transitions. Word has length 50 [2018-11-23 06:26:38,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:26:38,804 INFO L480 AbstractCegarLoop]: Abstraction has 306 states and 638 transitions. [2018-11-23 06:26:38,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 06:26:38,804 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 638 transitions. [2018-11-23 06:26:38,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-23 06:26:38,805 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:26:38,805 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:26:38,805 INFO L423 AbstractCegarLoop]: === Iteration 5 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:26:38,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:26:38,805 INFO L82 PathProgramCache]: Analyzing trace with hash -899686946, now seen corresponding path program 1 times [2018-11-23 06:26:38,805 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:26:38,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:26:38,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:26:38,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:26:38,808 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:26:38,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:26:38,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:26:38,870 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:26:38,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 06:26:38,870 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:26:38,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 06:26:38,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 06:26:38,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-23 06:26:38,870 INFO L87 Difference]: Start difference. First operand 306 states and 638 transitions. Second operand 5 states. [2018-11-23 06:26:38,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:26:38,904 INFO L93 Difference]: Finished difference Result 153 states and 302 transitions. [2018-11-23 06:26:38,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 06:26:38,904 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2018-11-23 06:26:38,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:26:38,905 INFO L225 Difference]: With dead ends: 153 [2018-11-23 06:26:38,905 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 06:26:38,905 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-23 06:26:38,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 06:26:38,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 06:26:38,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 06:26:38,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 06:26:38,906 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2018-11-23 06:26:38,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:26:38,906 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 06:26:38,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 06:26:38,906 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 06:26:38,906 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 06:26:38,909 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-23 06:26:38,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:26:38 BasicIcfg [2018-11-23 06:26:38,911 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 06:26:38,911 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 06:26:38,911 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 06:26:38,911 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 06:26:38,912 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:26:38" (3/4) ... [2018-11-23 06:26:38,915 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 06:26:38,921 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure allocator [2018-11-23 06:26:38,921 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure de_allocator [2018-11-23 06:26:38,925 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-23 06:26:38,925 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 06:26:38,961 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3fca4594-47c2-447b-8a15-dfdc873aca8c/bin-2019/utaipan/witness.graphml [2018-11-23 06:26:38,961 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 06:26:38,962 INFO L168 Benchmark]: Toolchain (without parser) took 1540.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 951.1 MB in the beginning and 989.4 MB in the end (delta: -38.3 MB). Peak memory consumption was 119.5 MB. Max. memory is 11.5 GB. [2018-11-23 06:26:38,963 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:26:38,963 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -184.5 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-11-23 06:26:38,964 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.11 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. [2018-11-23 06:26:38,964 INFO L168 Benchmark]: Boogie Preprocessor took 18.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 06:26:38,964 INFO L168 Benchmark]: RCFGBuilder took 268.22 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: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-11-23 06:26:38,965 INFO L168 Benchmark]: TraceAbstraction took 797.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 992.6 MB in the end (delta: 114.9 MB). Peak memory consumption was 114.9 MB. Max. memory is 11.5 GB. [2018-11-23 06:26:38,965 INFO L168 Benchmark]: Witness Printer took 50.32 ms. Allocated memory is still 1.2 GB. Free memory was 992.6 MB in the beginning and 989.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 06:26:38,967 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 369.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -184.5 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.11 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. * Boogie Preprocessor took 18.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 268.22 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: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 797.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 992.6 MB in the end (delta: 114.9 MB). Peak memory consumption was 114.9 MB. Max. memory is 11.5 GB. * Witness Printer took 50.32 ms. Allocated memory is still 1.2 GB. Free memory was 992.6 MB in the beginning and 989.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 658]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 650]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 658]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 650]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 106 locations, 4 error locations. SAFE Result, 0.7s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 351 SDtfs, 260 SDslu, 224 SDs, 0 SdLazy, 44 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=789occurred in iteration=0, 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, 5 MinimizatonAttempts, 45 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 219 NumberOfCodeBlocks, 219 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 214 ConstructedInterpolants, 0 QuantifiedInterpolants, 27620 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...