./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe036_pso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f2397c8b-5746-430a-af7e-8c17b41e60d8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f2397c8b-5746-430a-af7e-8c17b41e60d8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f2397c8b-5746-430a-af7e-8c17b41e60d8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f2397c8b-5746-430a-af7e-8c17b41e60d8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe036_pso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f2397c8b-5746-430a-af7e-8c17b41e60d8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f2397c8b-5746-430a-af7e-8c17b41e60d8/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6adb7a257cb648ebc36e7e3fee95502661bbf605 ................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:45:10,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:45:10,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:45:10,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:45:10,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:45:10,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:45:10,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:45:10,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:45:10,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:45:10,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:45:10,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:45:10,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:45:10,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:45:10,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:45:10,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:45:10,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:45:10,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:45:10,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:45:10,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:45:10,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:45:10,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:45:10,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:45:10,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:45:10,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:45:10,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:45:10,957 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:45:10,957 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:45:10,958 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:45:10,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:45:10,960 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:45:10,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:45:10,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:45:10,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:45:10,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:45:10,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:45:10,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:45:10,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:45:10,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:45:10,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:45:10,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:45:10,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:45:10,966 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f2397c8b-5746-430a-af7e-8c17b41e60d8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 23:45:10,979 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:45:10,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:45:10,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:45:10,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:45:10,980 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:45:10,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:45:10,981 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:45:10,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:45:10,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:45:10,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:45:10,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:45:10,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:45:10,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:45:10,982 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:45:10,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:45:10,983 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:45:10,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:45:10,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:45:10,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:45:10,984 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:45:10,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:45:10,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:45:10,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:45:10,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:45:10,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:45:10,985 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:45:10,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:45:10,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:45:10,986 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f2397c8b-5746-430a-af7e-8c17b41e60d8/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) 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 -> 6adb7a257cb648ebc36e7e3fee95502661bbf605 [2019-11-15 23:45:11,013 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:45:11,024 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:45:11,027 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:45:11,028 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:45:11,028 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:45:11,029 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f2397c8b-5746-430a-af7e-8c17b41e60d8/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe036_pso.opt.i [2019-11-15 23:45:11,092 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f2397c8b-5746-430a-af7e-8c17b41e60d8/bin/uautomizer/data/2ee953ca2/d0e58208677e47489ad3ca6284be6fab/FLAG909c31c4b [2019-11-15 23:45:11,553 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:45:11,554 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f2397c8b-5746-430a-af7e-8c17b41e60d8/sv-benchmarks/c/pthread-wmm/safe036_pso.opt.i [2019-11-15 23:45:11,570 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f2397c8b-5746-430a-af7e-8c17b41e60d8/bin/uautomizer/data/2ee953ca2/d0e58208677e47489ad3ca6284be6fab/FLAG909c31c4b [2019-11-15 23:45:11,849 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f2397c8b-5746-430a-af7e-8c17b41e60d8/bin/uautomizer/data/2ee953ca2/d0e58208677e47489ad3ca6284be6fab [2019-11-15 23:45:11,853 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:45:11,854 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:45:11,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:45:11,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:45:11,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:45:11,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:45:11" (1/1) ... [2019-11-15 23:45:11,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20683eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:11, skipping insertion in model container [2019-11-15 23:45:11,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:45:11" (1/1) ... [2019-11-15 23:45:11,868 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:45:11,922 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:45:12,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:45:12,259 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:45:12,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:45:12,380 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:45:12,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:12 WrapperNode [2019-11-15 23:45:12,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:45:12,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:45:12,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:45:12,382 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:45:12,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:12" (1/1) ... [2019-11-15 23:45:12,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:12" (1/1) ... [2019-11-15 23:45:12,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:45:12,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:45:12,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:45:12,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:45:12,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:12" (1/1) ... [2019-11-15 23:45:12,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:12" (1/1) ... [2019-11-15 23:45:12,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:12" (1/1) ... [2019-11-15 23:45:12,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:12" (1/1) ... [2019-11-15 23:45:12,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:12" (1/1) ... [2019-11-15 23:45:12,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:12" (1/1) ... [2019-11-15 23:45:12,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:12" (1/1) ... [2019-11-15 23:45:12,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:45:12,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:45:12,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:45:12,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:45:12,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2397c8b-5746-430a-af7e-8c17b41e60d8/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:45:12,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 23:45:12,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-15 23:45:12,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:45:12,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:45:12,516 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-15 23:45:12,517 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-15 23:45:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-15 23:45:12,517 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-15 23:45:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-15 23:45:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:45:12,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:45:12,521 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-15 23:45:12,863 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:45:12,864 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 23:45:12,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:45:12 BoogieIcfgContainer [2019-11-15 23:45:12,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:45:12,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:45:12,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:45:12,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:45:12,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:45:11" (1/3) ... [2019-11-15 23:45:12,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2351ed52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:45:12, skipping insertion in model container [2019-11-15 23:45:12,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:45:12" (2/3) ... [2019-11-15 23:45:12,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2351ed52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:45:12, skipping insertion in model container [2019-11-15 23:45:12,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:45:12" (3/3) ... [2019-11-15 23:45:12,869 INFO L109 eAbstractionObserver]: Analyzing ICFG safe036_pso.opt.i [2019-11-15 23:45:12,894 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:45:12,894 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:45:12,894 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:45:12,895 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:45:12,895 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:45:12,895 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:45:12,897 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:45:12,897 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:45:12,897 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:45:12,897 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:45:12,897 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:45:12,898 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:45:12,905 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-15 23:45:12,905 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:45:12,912 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:45:12,922 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:45:12,939 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:45:12,940 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:45:12,940 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:45:12,940 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:45:12,940 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:45:12,940 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:45:12,940 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:45:12,940 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:45:12,948 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 40 transitions [2019-11-15 23:45:12,975 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 286 states. [2019-11-15 23:45:12,977 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states. [2019-11-15 23:45:12,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-15 23:45:12,986 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:45:12,987 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:45:12,989 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:45:12,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:45:12,994 INFO L82 PathProgramCache]: Analyzing trace with hash 390631586, now seen corresponding path program 1 times [2019-11-15 23:45:13,001 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:45:13,002 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112911291] [2019-11-15 23:45:13,002 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:45:13,002 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:45:13,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:45:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:45:13,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:45:13,281 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112911291] [2019-11-15 23:45:13,282 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:45:13,282 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 23:45:13,283 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576049586] [2019-11-15 23:45:13,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 23:45:13,286 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:45:13,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 23:45:13,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:45:13,304 INFO L87 Difference]: Start difference. First operand 286 states. Second operand 4 states. [2019-11-15 23:45:13,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:45:13,393 INFO L93 Difference]: Finished difference Result 287 states and 646 transitions. [2019-11-15 23:45:13,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 23:45:13,395 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2019-11-15 23:45:13,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:45:13,407 INFO L225 Difference]: With dead ends: 287 [2019-11-15 23:45:13,407 INFO L226 Difference]: Without dead ends: 151 [2019-11-15 23:45:13,409 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:45:13,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2019-11-15 23:45:13,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2019-11-15 23:45:13,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-11-15 23:45:13,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 325 transitions. [2019-11-15 23:45:13,454 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 325 transitions. Word has length 25 [2019-11-15 23:45:13,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:45:13,455 INFO L462 AbstractCegarLoop]: Abstraction has 151 states and 325 transitions. [2019-11-15 23:45:13,455 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 23:45:13,455 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 325 transitions. [2019-11-15 23:45:13,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-15 23:45:13,457 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:45:13,457 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:45:13,458 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:45:13,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:45:13,458 INFO L82 PathProgramCache]: Analyzing trace with hash 133774966, now seen corresponding path program 1 times [2019-11-15 23:45:13,458 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:45:13,459 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141907520] [2019-11-15 23:45:13,459 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:45:13,459 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:45:13,459 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:45:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:45:13,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:45:13,565 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141907520] [2019-11-15 23:45:13,565 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:45:13,565 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:45:13,566 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498224998] [2019-11-15 23:45:13,567 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:45:13,567 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:45:13,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:45:13,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:45:13,568 INFO L87 Difference]: Start difference. First operand 151 states and 325 transitions. Second operand 5 states. [2019-11-15 23:45:13,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:45:13,623 INFO L93 Difference]: Finished difference Result 124 states and 241 transitions. [2019-11-15 23:45:13,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:45:13,629 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-11-15 23:45:13,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:45:13,630 INFO L225 Difference]: With dead ends: 124 [2019-11-15 23:45:13,630 INFO L226 Difference]: Without dead ends: 109 [2019-11-15 23:45:13,631 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:45:13,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-11-15 23:45:13,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-11-15 23:45:13,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-11-15 23:45:13,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 213 transitions. [2019-11-15 23:45:13,641 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 213 transitions. Word has length 26 [2019-11-15 23:45:13,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:45:13,641 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 213 transitions. [2019-11-15 23:45:13,641 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:45:13,641 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 213 transitions. [2019-11-15 23:45:13,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-15 23:45:13,643 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:45:13,643 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:45:13,643 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:45:13,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:45:13,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1682399059, now seen corresponding path program 1 times [2019-11-15 23:45:13,644 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:45:13,644 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427128410] [2019-11-15 23:45:13,644 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:45:13,644 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:45:13,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:45:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:45:13,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:45:13,782 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427128410] [2019-11-15 23:45:13,782 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:45:13,782 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 23:45:13,783 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418518439] [2019-11-15 23:45:13,783 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 23:45:13,783 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:45:13,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 23:45:13,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:45:13,784 INFO L87 Difference]: Start difference. First operand 109 states and 213 transitions. Second operand 7 states. [2019-11-15 23:45:13,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:45:13,892 INFO L93 Difference]: Finished difference Result 163 states and 330 transitions. [2019-11-15 23:45:13,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:45:13,893 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2019-11-15 23:45:13,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:45:13,894 INFO L225 Difference]: With dead ends: 163 [2019-11-15 23:45:13,894 INFO L226 Difference]: Without dead ends: 94 [2019-11-15 23:45:13,895 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-15 23:45:13,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-11-15 23:45:13,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2019-11-15 23:45:13,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-11-15 23:45:13,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 183 transitions. [2019-11-15 23:45:13,902 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 183 transitions. Word has length 27 [2019-11-15 23:45:13,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:45:13,903 INFO L462 AbstractCegarLoop]: Abstraction has 94 states and 183 transitions. [2019-11-15 23:45:13,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 23:45:13,903 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 183 transitions. [2019-11-15 23:45:13,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-15 23:45:13,904 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:45:13,904 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:45:13,905 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:45:13,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:45:13,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1056606747, now seen corresponding path program 2 times [2019-11-15 23:45:13,905 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:45:13,905 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696387247] [2019-11-15 23:45:13,906 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:45:13,906 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:45:13,906 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:45:13,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:45:14,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:45:14,022 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696387247] [2019-11-15 23:45:14,023 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:45:14,023 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 23:45:14,023 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063830300] [2019-11-15 23:45:14,023 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 23:45:14,023 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:45:14,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 23:45:14,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:45:14,024 INFO L87 Difference]: Start difference. First operand 94 states and 183 transitions. Second operand 7 states. [2019-11-15 23:45:14,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:45:14,154 INFO L93 Difference]: Finished difference Result 76 states and 141 transitions. [2019-11-15 23:45:14,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:45:14,154 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2019-11-15 23:45:14,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:45:14,154 INFO L225 Difference]: With dead ends: 76 [2019-11-15 23:45:14,154 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 23:45:14,155 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-15 23:45:14,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 23:45:14,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 23:45:14,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 23:45:14,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 23:45:14,156 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2019-11-15 23:45:14,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:45:14,156 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:45:14,156 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 23:45:14,156 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:45:14,156 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 23:45:14,159 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-15 23:45:14,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:45:14 BasicIcfg [2019-11-15 23:45:14,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:45:14,165 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:45:14,165 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:45:14,166 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:45:14,166 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:45:12" (3/4) ... [2019-11-15 23:45:14,170 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 23:45:14,177 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-15 23:45:14,177 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-15 23:45:14,181 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-15 23:45:14,182 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 23:45:14,248 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f2397c8b-5746-430a-af7e-8c17b41e60d8/bin/uautomizer/witness.graphml [2019-11-15 23:45:14,248 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:45:14,250 INFO L168 Benchmark]: Toolchain (without parser) took 2394.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.4 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -72.6 MB). Peak memory consumption was 119.8 MB. Max. memory is 11.5 GB. [2019-11-15 23:45:14,250 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:45:14,251 INFO L168 Benchmark]: CACSL2BoogieTranslator took 526.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.4 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -214.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:45:14,251 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:45:14,252 INFO L168 Benchmark]: Boogie Preprocessor took 23.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:45:14,252 INFO L168 Benchmark]: RCFGBuilder took 417.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:45:14,253 INFO L168 Benchmark]: TraceAbstraction took 1299.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:45:14,253 INFO L168 Benchmark]: Witness Printer took 82.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:45:14,256 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 526.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.4 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -214.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 417.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1299.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 11.5 GB. * Witness Printer took 82.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 50 locations, 1 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 151 SDtfs, 148 SDslu, 385 SDs, 0 SdLazy, 58 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=286occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 7001 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...