./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-1_2-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5496b77c-0a99-496b-ae24-9e8c353afb8e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5496b77c-0a99-496b-ae24-9e8c353afb8e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5496b77c-0a99-496b-ae24-9e8c353afb8e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5496b77c-0a99-496b-ae24-9e8c353afb8e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_2-join.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5496b77c-0a99-496b-ae24-9e8c353afb8e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5496b77c-0a99-496b-ae24-9e8c353afb8e/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 766171a26e9abac3f50ab774768818300c722e3a ............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:51:26,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:51:26,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:51:26,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:51:26,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:51:26,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:51:26,821 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:51:26,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:51:26,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:51:26,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:51:26,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:51:26,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:51:26,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:51:26,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:51:26,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:51:26,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:51:26,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:51:26,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:51:26,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:51:26,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:51:26,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:51:26,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:51:26,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:51:26,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:51:26,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:51:26,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:51:26,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:51:26,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:51:26,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:51:26,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:51:26,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:51:26,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:51:26,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:51:26,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:51:26,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:51:26,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:51:26,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:51:26,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:51:26,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:51:26,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:51:26,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:51:26,873 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5496b77c-0a99-496b-ae24-9e8c353afb8e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:51:26,897 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:51:26,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:51:26,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:51:26,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:51:26,908 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:51:26,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:51:26,909 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:51:26,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:51:26,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:51:26,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:51:26,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:51:26,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:51:26,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:51:26,910 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:51:26,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:51:26,911 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:51:26,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:51:26,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:51:26,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:51:26,913 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:51:26,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:51:26,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:51:26,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:51:26,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:51:26,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:51:26,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:51:26,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:51:26,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:51:26,915 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_5496b77c-0a99-496b-ae24-9e8c353afb8e/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 -> 766171a26e9abac3f50ab774768818300c722e3a [2019-11-25 08:51:27,066 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:51:27,075 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:51:27,078 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:51:27,079 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:51:27,080 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:51:27,081 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5496b77c-0a99-496b-ae24-9e8c353afb8e/bin/uautomizer/../../sv-benchmarks/c/ldv-races/race-1_2-join.i [2019-11-25 08:51:27,133 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5496b77c-0a99-496b-ae24-9e8c353afb8e/bin/uautomizer/data/6938dd907/2234dd10c1af471c9b77870c1c2f0e6a/FLAGa35af462b [2019-11-25 08:51:27,642 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:51:27,643 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5496b77c-0a99-496b-ae24-9e8c353afb8e/sv-benchmarks/c/ldv-races/race-1_2-join.i [2019-11-25 08:51:27,664 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5496b77c-0a99-496b-ae24-9e8c353afb8e/bin/uautomizer/data/6938dd907/2234dd10c1af471c9b77870c1c2f0e6a/FLAGa35af462b [2019-11-25 08:51:27,981 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5496b77c-0a99-496b-ae24-9e8c353afb8e/bin/uautomizer/data/6938dd907/2234dd10c1af471c9b77870c1c2f0e6a [2019-11-25 08:51:27,983 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:51:27,984 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:51:27,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:27,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:51:27,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:51:27,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:27" (1/1) ... [2019-11-25 08:51:27,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b1f37b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:27, skipping insertion in model container [2019-11-25 08:51:27,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:27" (1/1) ... [2019-11-25 08:51:27,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:51:28,059 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:51:29,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:29,015 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:51:29,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:29,407 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:51:29,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:29 WrapperNode [2019-11-25 08:51:29,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:29,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:29,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:51:29,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:51:29,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:29" (1/1) ... [2019-11-25 08:51:29,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:29" (1/1) ... [2019-11-25 08:51:29,481 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:29,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:51:29,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:51:29,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:51:29,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:29" (1/1) ... [2019-11-25 08:51:29,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:29" (1/1) ... [2019-11-25 08:51:29,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:29" (1/1) ... [2019-11-25 08:51:29,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:29" (1/1) ... [2019-11-25 08:51:29,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:29" (1/1) ... [2019-11-25 08:51:29,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:29" (1/1) ... [2019-11-25 08:51:29,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:29" (1/1) ... [2019-11-25 08:51:29,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:51:29,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:51:29,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:51:29,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:51:29,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5496b77c-0a99-496b-ae24-9e8c353afb8e/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 [2019-11-25 08:51:29,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:51:29,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:51:29,597 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-11-25 08:51:29,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-25 08:51:29,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:51:29,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:51:29,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:51:29,599 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2019-11-25 08:51:29,599 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2019-11-25 08:51:29,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:51:29,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-25 08:51:29,603 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-25 08:51:30,155 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:51:30,155 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-25 08:51:30,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:30 BoogieIcfgContainer [2019-11-25 08:51:30,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:51:30,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:51:30,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:51:30,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:51:30,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:51:27" (1/3) ... [2019-11-25 08:51:30,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cfdeb39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:30, skipping insertion in model container [2019-11-25 08:51:30,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:29" (2/3) ... [2019-11-25 08:51:30,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cfdeb39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:30, skipping insertion in model container [2019-11-25 08:51:30,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:30" (3/3) ... [2019-11-25 08:51:30,162 INFO L109 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2019-11-25 08:51:30,192 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,192 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,193 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,193 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,193 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,193 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,194 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,194 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,194 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,194 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,194 WARN L315 ript$VariableManager]: TermVariabe thread1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,195 WARN L315 ript$VariableManager]: TermVariabe thread1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,195 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,195 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,195 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,196 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,196 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,196 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,196 WARN L315 ript$VariableManager]: TermVariabe thread1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,196 WARN L315 ript$VariableManager]: TermVariabe thread1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,197 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,197 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,197 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,197 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:30,223 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-25 08:51:30,223 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:51:30,230 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-25 08:51:30,242 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-25 08:51:30,262 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:51:30,262 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:51:30,262 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:51:30,262 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:51:30,262 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:51:30,262 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:51:30,262 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:51:30,263 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:51:30,274 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 102 places, 102 transitions [2019-11-25 08:51:30,299 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 239 states. [2019-11-25 08:51:30,301 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states. [2019-11-25 08:51:30,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-25 08:51:30,310 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:30,310 INFO L410 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] [2019-11-25 08:51:30,311 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:30,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:30,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1007660960, now seen corresponding path program 1 times [2019-11-25 08:51:30,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:30,323 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62590903] [2019-11-25 08:51:30,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:30,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:30,704 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62590903] [2019-11-25 08:51:30,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:30,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:51:30,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909778877] [2019-11-25 08:51:30,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:51:30,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:30,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:51:30,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:51:30,726 INFO L87 Difference]: Start difference. First operand 239 states. Second operand 5 states. [2019-11-25 08:51:30,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:30,900 INFO L93 Difference]: Finished difference Result 237 states and 384 transitions. [2019-11-25 08:51:30,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:51:30,905 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-25 08:51:30,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:30,919 INFO L225 Difference]: With dead ends: 237 [2019-11-25 08:51:30,919 INFO L226 Difference]: Without dead ends: 181 [2019-11-25 08:51:30,922 INFO L630 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 [2019-11-25 08:51:30,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2019-11-25 08:51:30,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2019-11-25 08:51:30,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2019-11-25 08:51:30,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 292 transitions. [2019-11-25 08:51:30,972 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 292 transitions. Word has length 23 [2019-11-25 08:51:30,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:30,972 INFO L462 AbstractCegarLoop]: Abstraction has 181 states and 292 transitions. [2019-11-25 08:51:30,973 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:51:30,973 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 292 transitions. [2019-11-25 08:51:30,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-25 08:51:30,974 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:30,974 INFO L410 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] [2019-11-25 08:51:30,975 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:30,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:30,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1208531866, now seen corresponding path program 1 times [2019-11-25 08:51:30,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:30,976 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493382976] [2019-11-25 08:51:30,976 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:31,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:31,123 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493382976] [2019-11-25 08:51:31,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:31,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:51:31,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174802294] [2019-11-25 08:51:31,125 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:51:31,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:31,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:51:31,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:51:31,126 INFO L87 Difference]: Start difference. First operand 181 states and 292 transitions. Second operand 5 states. [2019-11-25 08:51:31,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:31,253 INFO L93 Difference]: Finished difference Result 179 states and 290 transitions. [2019-11-25 08:51:31,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:51:31,254 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-25 08:51:31,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:31,256 INFO L225 Difference]: With dead ends: 179 [2019-11-25 08:51:31,256 INFO L226 Difference]: Without dead ends: 173 [2019-11-25 08:51:31,257 INFO L630 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 [2019-11-25 08:51:31,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2019-11-25 08:51:31,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2019-11-25 08:51:31,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2019-11-25 08:51:31,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 284 transitions. [2019-11-25 08:51:31,283 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 284 transitions. Word has length 31 [2019-11-25 08:51:31,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:31,283 INFO L462 AbstractCegarLoop]: Abstraction has 173 states and 284 transitions. [2019-11-25 08:51:31,283 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:51:31,284 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 284 transitions. [2019-11-25 08:51:31,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-25 08:51:31,290 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:31,290 INFO L410 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] [2019-11-25 08:51:31,291 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:31,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:31,291 INFO L82 PathProgramCache]: Analyzing trace with hash -118669804, now seen corresponding path program 1 times [2019-11-25 08:51:31,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:31,292 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409190011] [2019-11-25 08:51:31,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:31,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:31,437 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409190011] [2019-11-25 08:51:31,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:31,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:51:31,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625115229] [2019-11-25 08:51:31,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:51:31,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:31,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:51:31,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:51:31,439 INFO L87 Difference]: Start difference. First operand 173 states and 284 transitions. Second operand 5 states. [2019-11-25 08:51:31,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:31,610 INFO L93 Difference]: Finished difference Result 274 states and 446 transitions. [2019-11-25 08:51:31,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:51:31,611 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2019-11-25 08:51:31,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:31,613 INFO L225 Difference]: With dead ends: 274 [2019-11-25 08:51:31,614 INFO L226 Difference]: Without dead ends: 274 [2019-11-25 08:51:31,614 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:51:31,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2019-11-25 08:51:31,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 181. [2019-11-25 08:51:31,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2019-11-25 08:51:31,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 296 transitions. [2019-11-25 08:51:31,641 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 296 transitions. Word has length 34 [2019-11-25 08:51:31,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:31,642 INFO L462 AbstractCegarLoop]: Abstraction has 181 states and 296 transitions. [2019-11-25 08:51:31,642 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:51:31,642 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 296 transitions. [2019-11-25 08:51:31,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-25 08:51:31,644 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:31,644 INFO L410 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] [2019-11-25 08:51:31,644 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:31,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:31,649 INFO L82 PathProgramCache]: Analyzing trace with hash 543994386, now seen corresponding path program 1 times [2019-11-25 08:51:31,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:31,650 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174418966] [2019-11-25 08:51:31,650 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:31,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:31,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:31,763 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:51:31,764 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:51:31,823 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-25 08:51:31,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:51:31 BasicIcfg [2019-11-25 08:51:31,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:51:31,825 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:51:31,825 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:51:31,825 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:51:31,826 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:30" (3/4) ... [2019-11-25 08:51:31,828 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:51:31,878 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5496b77c-0a99-496b-ae24-9e8c353afb8e/bin/uautomizer/witness.graphml [2019-11-25 08:51:31,878 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:51:31,881 INFO L168 Benchmark]: Toolchain (without parser) took 3896.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 942.0 MB in the beginning and 845.2 MB in the end (delta: 96.9 MB). Peak memory consumption was 262.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:31,881 INFO L168 Benchmark]: CDTParser took 0.18 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. [2019-11-25 08:51:31,882 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1423.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 942.0 MB in the beginning and 1.0 GB in the end (delta: -78.2 MB). Peak memory consumption was 100.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:31,882 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.35 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. [2019-11-25 08:51:31,883 INFO L168 Benchmark]: Boogie Preprocessor took 38.74 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:31,883 INFO L168 Benchmark]: RCFGBuilder took 635.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 972.3 MB in the end (delta: 41.3 MB). Peak memory consumption was 41.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:31,884 INFO L168 Benchmark]: TraceAbstraction took 1667.67 ms. Allocated memory is still 1.2 GB. Free memory was 972.3 MB in the beginning and 851.9 MB in the end (delta: 120.4 MB). Peak memory consumption was 120.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:31,884 INFO L168 Benchmark]: Witness Printer took 53.79 ms. Allocated memory is still 1.2 GB. Free memory was 851.9 MB in the beginning and 845.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:31,887 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 1423.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 942.0 MB in the beginning and 1.0 GB in the end (delta: -78.2 MB). Peak memory consumption was 100.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 73.35 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. * Boogie Preprocessor took 38.74 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 635.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 972.3 MB in the end (delta: 41.3 MB). Peak memory consumption was 41.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1667.67 ms. Allocated memory is still 1.2 GB. Free memory was 972.3 MB in the beginning and 851.9 MB in the end (delta: 120.4 MB). Peak memory consumption was 120.4 MB. Max. memory is 11.5 GB. * Witness Printer took 53.79 ms. Allocated memory is still 1.2 GB. Free memory was 851.9 MB in the beginning and 845.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1682]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1685] 0 int pdev; VAL [pdev=0] [L1683] 0 pthread_t t1; VAL [pdev=0, t1={3:0}] [L1684] 0 pthread_mutex_t mutex; VAL [mutex={2:0}, pdev=0, t1={3:0}] [L1694] 0 pdev = 1 VAL [mutex={2:0}, pdev=1, t1={3:0}] [L1682] COND FALSE 0 !(!expression) VAL [mutex={2:0}, pdev=1, t1={3:0}] [L1696] COND TRUE 0 __VERIFIER_nondet_int() VAL [mutex={2:0}, pdev=1, t1={3:0}] [L1697] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={2:0}, pdev=1, t1={3:0}] [L1698] 0 pdev = 2 VAL [arg={0:0}, mutex={2:0}, pdev=2, t1={3:0}] [L1688] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={2:0}, pdev=6, t1={3:0}] [L1682] COND TRUE 0 !expression VAL [arg={0:0}, arg={0:0}, mutex={2:0}, pdev=6, t1={3:0}] [L1682] 0 __VERIFIER_error() VAL [arg={0:0}, arg={0:0}, mutex={2:0}, pdev=6, t1={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 104 locations, 4 error locations. Result: UNSAFE, OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 218 SDtfs, 253 SDslu, 428 SDs, 0 SdLazy, 82 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=239occurred 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, 3 MinimizatonAttempts, 93 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 3408 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 incorrect! Received shutdown request...