./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-1_1-join.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/working_dir_f84a43ea-99c4-4e58-b271-8bc422fecb66/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f84a43ea-99c4-4e58-b271-8bc422fecb66/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f84a43ea-99c4-4e58-b271-8bc422fecb66/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f84a43ea-99c4-4e58-b271-8bc422fecb66/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_1-join.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f84a43ea-99c4-4e58-b271-8bc422fecb66/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f84a43ea-99c4-4e58-b271-8bc422fecb66/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 3cd35ce33d4b035fe378e7f17ce504e953f9db6a ......................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:02:36,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:36,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:36,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:36,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:36,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:36,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:36,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:36,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:36,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:36,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:36,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:36,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:36,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:36,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:36,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:36,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:36,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:36,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:36,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:36,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:36,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:36,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:36,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:36,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:36,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:36,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:36,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:36,856 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:36,857 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:36,857 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:36,858 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:36,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:36,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:36,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:36,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:36,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:36,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:36,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:36,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:36,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:36,864 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f84a43ea-99c4-4e58-b271-8bc422fecb66/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:02:36,879 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:36,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:36,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:36,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:36,881 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:36,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:36,881 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:02:36,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:36,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:02:36,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:36,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:02:36,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:02:36,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:02:36,882 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:02:36,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:02:36,882 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:36,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:02:36,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:36,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:36,883 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:02:36,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:02:36,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:02:36,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:36,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:02:36,884 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:02:36,884 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:36,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:02:36,885 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:02:36,885 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/working_dir_f84a43ea-99c4-4e58-b271-8bc422fecb66/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 -> 3cd35ce33d4b035fe378e7f17ce504e953f9db6a [2019-10-22 09:02:36,918 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:36,931 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:36,936 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:36,938 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:36,938 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:36,940 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f84a43ea-99c4-4e58-b271-8bc422fecb66/bin/uautomizer/../../sv-benchmarks/c/ldv-races/race-1_1-join.i [2019-10-22 09:02:36,985 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f84a43ea-99c4-4e58-b271-8bc422fecb66/bin/uautomizer/data/795f590ae/9d5cab2072754a65b60bc37c9a7d5c83/FLAGf53e2202b [2019-10-22 09:02:37,463 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:37,463 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f84a43ea-99c4-4e58-b271-8bc422fecb66/sv-benchmarks/c/ldv-races/race-1_1-join.i [2019-10-22 09:02:37,489 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f84a43ea-99c4-4e58-b271-8bc422fecb66/bin/uautomizer/data/795f590ae/9d5cab2072754a65b60bc37c9a7d5c83/FLAGf53e2202b [2019-10-22 09:02:37,960 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f84a43ea-99c4-4e58-b271-8bc422fecb66/bin/uautomizer/data/795f590ae/9d5cab2072754a65b60bc37c9a7d5c83 [2019-10-22 09:02:37,962 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:37,963 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:02:37,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:37,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:37,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:37,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:37" (1/1) ... [2019-10-22 09:02:37,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5476c4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:37, skipping insertion in model container [2019-10-22 09:02:37,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:37" (1/1) ... [2019-10-22 09:02:37,977 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:38,026 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:38,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:38,761 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:38,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:39,072 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:39,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:39 WrapperNode [2019-10-22 09:02:39,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:39,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:39,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:02:39,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:02:39,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:39" (1/1) ... [2019-10-22 09:02:39,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:39" (1/1) ... [2019-10-22 09:02:39,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:39,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:39,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:39,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:39,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:39" (1/1) ... [2019-10-22 09:02:39,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:39" (1/1) ... [2019-10-22 09:02:39,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:39" (1/1) ... [2019-10-22 09:02:39,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:39" (1/1) ... [2019-10-22 09:02:39,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:39" (1/1) ... [2019-10-22 09:02:39,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:39" (1/1) ... [2019-10-22 09:02:39,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:39" (1/1) ... [2019-10-22 09:02:39,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:39,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:39,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:39,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:39,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f84a43ea-99c4-4e58-b271-8bc422fecb66/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 [2019-10-22 09:02:39,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:02:39,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:02:39,295 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-10-22 09:02:39,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 09:02:39,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:39,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:39,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:02:39,297 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2019-10-22 09:02:39,297 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2019-10-22 09:02:39,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:02:39,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 09:02:39,299 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 09:02:39,883 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:39,884 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-10-22 09:02:39,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:39 BoogieIcfgContainer [2019-10-22 09:02:39,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:39,886 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:02:39,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:02:39,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:02:39,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:02:37" (1/3) ... [2019-10-22 09:02:39,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558f14f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:39, skipping insertion in model container [2019-10-22 09:02:39,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:39" (2/3) ... [2019-10-22 09:02:39,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558f14f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:39, skipping insertion in model container [2019-10-22 09:02:39,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:39" (3/3) ... [2019-10-22 09:02:39,893 INFO L109 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2019-10-22 09:02:39,923 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thread1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:39,924 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thread1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:39,924 WARN L315 ript$VariableManager]: TermVariabe Thread0_thread1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:39,924 WARN L315 ript$VariableManager]: TermVariabe Thread0_thread1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:39,924 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:39,925 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:39,925 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thread1_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:39,925 WARN L315 ript$VariableManager]: TermVariabe Thread0_thread1_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:39,925 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thread1_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:39,925 WARN L315 ript$VariableManager]: TermVariabe Thread0_thread1_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:39,926 WARN L315 ript$VariableManager]: TermVariabe Thread0_thread1_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:39,926 WARN L315 ript$VariableManager]: TermVariabe Thread0_thread1_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:39,926 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thread1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:39,926 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thread1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:39,937 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 09:02:39,937 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:02:39,945 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-10-22 09:02:39,957 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-10-22 09:02:39,978 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:02:39,978 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:02:39,978 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:02:39,979 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:39,979 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:39,979 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:02:39,979 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:39,979 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:02:39,990 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 78 places, 82 transitions [2019-10-22 09:02:40,017 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 272 states. [2019-10-22 09:02:40,024 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states. [2019-10-22 09:02:40,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 09:02:40,036 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:40,037 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:40,039 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:40,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:40,046 INFO L82 PathProgramCache]: Analyzing trace with hash 382526295, now seen corresponding path program 1 times [2019-10-22 09:02:40,055 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:40,055 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547361783] [2019-10-22 09:02:40,055 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:40,056 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:40,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:40,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:40,454 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547361783] [2019-10-22 09:02:40,455 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:40,456 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:02:40,456 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815166208] [2019-10-22 09:02:40,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:02:40,461 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:40,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:02:40,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:40,479 INFO L87 Difference]: Start difference. First operand 272 states. Second operand 5 states. [2019-10-22 09:02:40,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:40,630 INFO L93 Difference]: Finished difference Result 270 states and 452 transitions. [2019-10-22 09:02:40,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:02:40,632 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-10-22 09:02:40,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:40,647 INFO L225 Difference]: With dead ends: 270 [2019-10-22 09:02:40,649 INFO L226 Difference]: Without dead ends: 234 [2019-10-22 09:02:40,651 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:02:40,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2019-10-22 09:02:40,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2019-10-22 09:02:40,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2019-10-22 09:02:40,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 395 transitions. [2019-10-22 09:02:40,714 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 395 transitions. Word has length 22 [2019-10-22 09:02:40,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:40,715 INFO L462 AbstractCegarLoop]: Abstraction has 234 states and 395 transitions. [2019-10-22 09:02:40,715 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:02:40,715 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 395 transitions. [2019-10-22 09:02:40,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 09:02:40,718 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:40,718 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, 1, 1, 1] [2019-10-22 09:02:40,719 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:40,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:40,719 INFO L82 PathProgramCache]: Analyzing trace with hash 526427509, now seen corresponding path program 1 times [2019-10-22 09:02:40,720 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:40,720 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712080998] [2019-10-22 09:02:40,720 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:40,720 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:40,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:40,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:40,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:40,857 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712080998] [2019-10-22 09:02:40,857 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:40,857 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:02:40,858 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757037520] [2019-10-22 09:02:40,859 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:02:40,859 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:40,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:02:40,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:40,860 INFO L87 Difference]: Start difference. First operand 234 states and 395 transitions. Second operand 5 states. [2019-10-22 09:02:40,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:40,954 INFO L93 Difference]: Finished difference Result 232 states and 393 transitions. [2019-10-22 09:02:40,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:02:40,954 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-10-22 09:02:40,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:40,956 INFO L225 Difference]: With dead ends: 232 [2019-10-22 09:02:40,957 INFO L226 Difference]: Without dead ends: 226 [2019-10-22 09:02:40,957 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:02:40,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2019-10-22 09:02:40,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2019-10-22 09:02:40,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2019-10-22 09:02:40,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 387 transitions. [2019-10-22 09:02:40,983 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 387 transitions. Word has length 30 [2019-10-22 09:02:40,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:40,984 INFO L462 AbstractCegarLoop]: Abstraction has 226 states and 387 transitions. [2019-10-22 09:02:40,984 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:02:40,984 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 387 transitions. [2019-10-22 09:02:40,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 09:02:40,985 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:40,985 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:40,986 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:40,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:40,986 INFO L82 PathProgramCache]: Analyzing trace with hash 577163515, now seen corresponding path program 1 times [2019-10-22 09:02:40,986 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:40,986 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432466065] [2019-10-22 09:02:40,987 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:40,987 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:40,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:41,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:41,083 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432466065] [2019-10-22 09:02:41,083 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:41,083 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:02:41,084 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158863587] [2019-10-22 09:02:41,084 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:02:41,084 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:41,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:02:41,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:41,085 INFO L87 Difference]: Start difference. First operand 226 states and 387 transitions. Second operand 5 states. [2019-10-22 09:02:41,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:41,163 INFO L93 Difference]: Finished difference Result 196 states and 329 transitions. [2019-10-22 09:02:41,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:02:41,163 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2019-10-22 09:02:41,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:41,165 INFO L225 Difference]: With dead ends: 196 [2019-10-22 09:02:41,165 INFO L226 Difference]: Without dead ends: 156 [2019-10-22 09:02:41,165 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:02:41,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2019-10-22 09:02:41,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2019-10-22 09:02:41,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-10-22 09:02:41,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 254 transitions. [2019-10-22 09:02:41,175 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 254 transitions. Word has length 35 [2019-10-22 09:02:41,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:41,176 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 254 transitions. [2019-10-22 09:02:41,176 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:02:41,176 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 254 transitions. [2019-10-22 09:02:41,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-22 09:02:41,177 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:41,178 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, 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] [2019-10-22 09:02:41,178 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:41,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:41,178 INFO L82 PathProgramCache]: Analyzing trace with hash -162900702, now seen corresponding path program 1 times [2019-10-22 09:02:41,178 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:41,179 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979891564] [2019-10-22 09:02:41,179 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:41,179 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:41,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:41,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:41,316 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979891564] [2019-10-22 09:02:41,316 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:41,316 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:02:41,316 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449175248] [2019-10-22 09:02:41,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:02:41,317 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:41,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:02:41,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:41,318 INFO L87 Difference]: Start difference. First operand 156 states and 254 transitions. Second operand 5 states. [2019-10-22 09:02:41,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:41,399 INFO L93 Difference]: Finished difference Result 154 states and 252 transitions. [2019-10-22 09:02:41,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:02:41,400 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2019-10-22 09:02:41,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:41,400 INFO L225 Difference]: With dead ends: 154 [2019-10-22 09:02:41,400 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 09:02:41,401 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:02:41,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 09:02:41,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 09:02:41,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 09:02:41,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 09:02:41,401 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2019-10-22 09:02:41,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:41,402 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:41,402 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:02:41,402 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:02:41,402 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 09:02:41,407 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 09:02:41,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:02:41 BasicIcfg [2019-10-22 09:02:41,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:02:41,411 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:02:41,411 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:02:41,411 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:02:41,411 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:39" (3/4) ... [2019-10-22 09:02:41,415 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 09:02:41,422 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2019-10-22 09:02:41,429 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-10-22 09:02:41,430 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 09:02:41,479 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f84a43ea-99c4-4e58-b271-8bc422fecb66/bin/uautomizer/witness.graphml [2019-10-22 09:02:41,481 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:02:41,483 INFO L168 Benchmark]: Toolchain (without parser) took 3519.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 939.2 MB in the beginning and 839.9 MB in the end (delta: 99.3 MB). Peak memory consumption was 258.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:41,514 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:41,515 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1108.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 939.2 MB in the beginning and 1.0 GB in the end (delta: -78.2 MB). Peak memory consumption was 94.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:41,515 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.97 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:41,515 INFO L168 Benchmark]: Boogie Preprocessor took 57.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:41,516 INFO L168 Benchmark]: RCFGBuilder took 671.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 964.1 MB in the end (delta: 46.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:41,516 INFO L168 Benchmark]: TraceAbstraction took 1523.88 ms. Allocated memory is still 1.2 GB. Free memory was 964.1 MB in the beginning and 840.4 MB in the end (delta: 123.8 MB). Peak memory consumption was 123.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:41,516 INFO L168 Benchmark]: Witness Printer took 70.77 ms. Allocated memory is still 1.2 GB. Free memory was 840.4 MB in the beginning and 839.9 MB in the end (delta: 474.3 kB). Peak memory consumption was 474.3 kB. Max. memory is 11.5 GB. [2019-10-22 09:02:41,518 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1108.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 939.2 MB in the beginning and 1.0 GB in the end (delta: -78.2 MB). Peak memory consumption was 94.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 82.97 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 671.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 964.1 MB in the end (delta: 46.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1523.88 ms. Allocated memory is still 1.2 GB. Free memory was 964.1 MB in the beginning and 840.4 MB in the end (delta: 123.8 MB). Peak memory consumption was 123.8 MB. Max. memory is 11.5 GB. * Witness Printer took 70.77 ms. Allocated memory is still 1.2 GB. Free memory was 840.4 MB in the beginning and 839.9 MB in the end (delta: 474.3 kB). Peak memory consumption was 474.3 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 92 locations, 5 error locations. Result: SAFE, OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 292 SDtfs, 307 SDslu, 550 SDs, 0 SdLazy, 63 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=272occurred 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, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 139 ConstructedInterpolants, 0 QuantifiedInterpolants, 6992 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...