./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 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_07ea0499-c7d0-4636-a226-505a09878056/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_07ea0499-c7d0-4636-a226-505a09878056/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_07ea0499-c7d0-4636-a226-505a09878056/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_07ea0499-c7d0-4636-a226-505a09878056/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_1-join.i -s /tmp/vcloud-vcloud-master/worker/run_dir_07ea0499-c7d0-4636-a226-505a09878056/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_07ea0499-c7d0-4636-a226-505a09878056/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 0.1.24-6b5699a [2019-11-25 08:57:09,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:57:09,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:57:09,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:57:09,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:57:09,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:57:09,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:57:09,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:57:09,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:57:09,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:57:09,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:57:09,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:57:09,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:57:09,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:57:09,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:57:09,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:57:09,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:57:09,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:57:09,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:57:09,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:57:09,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:57:09,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:57:09,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:57:09,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:57:09,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:57:09,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:57:09,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:57:09,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:57:09,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:57:09,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:57:09,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:57:09,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:57:09,560 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:57:09,561 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:57:09,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:57:09,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:57:09,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:57:09,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:57:09,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:57:09,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:57:09,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:57:09,565 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_07ea0499-c7d0-4636-a226-505a09878056/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:57:09,579 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:57:09,580 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:57:09,581 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:57:09,581 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:57:09,581 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:57:09,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:57:09,581 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:57:09,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:57:09,582 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:57:09,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:57:09,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:57:09,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:57:09,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:57:09,583 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:57:09,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:57:09,583 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:57:09,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:57:09,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:57:09,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:57:09,584 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:57:09,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:57:09,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:57:09,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:57:09,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:57:09,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:57:09,585 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:57:09,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:57:09,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:57:09,585 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_07ea0499-c7d0-4636-a226-505a09878056/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 [2019-11-25 08:57:09,769 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:57:09,779 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:57:09,781 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:57:09,782 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:57:09,783 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:57:09,783 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_07ea0499-c7d0-4636-a226-505a09878056/bin/uautomizer/../../sv-benchmarks/c/ldv-races/race-1_1-join.i [2019-11-25 08:57:09,845 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_07ea0499-c7d0-4636-a226-505a09878056/bin/uautomizer/data/a5cd592b6/7ed950b6d91d43f9bd224d6405557ea9/FLAG52b5cd332 [2019-11-25 08:57:10,459 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:57:10,460 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_07ea0499-c7d0-4636-a226-505a09878056/sv-benchmarks/c/ldv-races/race-1_1-join.i [2019-11-25 08:57:10,504 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_07ea0499-c7d0-4636-a226-505a09878056/bin/uautomizer/data/a5cd592b6/7ed950b6d91d43f9bd224d6405557ea9/FLAG52b5cd332 [2019-11-25 08:57:10,668 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_07ea0499-c7d0-4636-a226-505a09878056/bin/uautomizer/data/a5cd592b6/7ed950b6d91d43f9bd224d6405557ea9 [2019-11-25 08:57:10,670 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:57:10,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:57:10,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:10,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:57:10,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:57:10,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:10" (1/1) ... [2019-11-25 08:57:10,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c7a3b54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:10, skipping insertion in model container [2019-11-25 08:57:10,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:10" (1/1) ... [2019-11-25 08:57:10,687 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:57:10,733 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:57:11,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:11,548 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:57:11,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:11,950 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:57:11,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:11 WrapperNode [2019-11-25 08:57:11,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:11,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:11,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:57:11,952 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:57:11,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:11" (1/1) ... [2019-11-25 08:57:11,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:11" (1/1) ... [2019-11-25 08:57:12,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:12,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:57:12,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:57:12,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:57:12,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:11" (1/1) ... [2019-11-25 08:57:12,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:11" (1/1) ... [2019-11-25 08:57:12,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:11" (1/1) ... [2019-11-25 08:57:12,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:11" (1/1) ... [2019-11-25 08:57:12,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:11" (1/1) ... [2019-11-25 08:57:12,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:11" (1/1) ... [2019-11-25 08:57:12,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:11" (1/1) ... [2019-11-25 08:57:12,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:57:12,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:57:12,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:57:12,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:57:12,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_07ea0499-c7d0-4636-a226-505a09878056/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 08:57:12,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:57:12,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:57:12,143 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-11-25 08:57:12,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-25 08:57:12,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:57:12,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:57:12,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:57:12,145 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2019-11-25 08:57:12,145 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2019-11-25 08:57:12,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:57:12,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-25 08:57:12,155 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 08:57:12,834 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:57:12,835 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-25 08:57:12,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:12 BoogieIcfgContainer [2019-11-25 08:57:12,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:57:12,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:57:12,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:57:12,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:57:12,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:57:10" (1/3) ... [2019-11-25 08:57:12,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bef2239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:57:12, skipping insertion in model container [2019-11-25 08:57:12,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:11" (2/3) ... [2019-11-25 08:57:12,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bef2239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:57:12, skipping insertion in model container [2019-11-25 08:57:12,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:12" (3/3) ... [2019-11-25 08:57:12,844 INFO L109 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2019-11-25 08:57:12,886 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,886 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,886 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,887 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,887 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,888 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,888 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,889 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of3ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,889 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,890 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of3ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,890 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of3ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,890 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of3ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,890 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,891 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,892 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,892 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,892 WARN L315 ript$VariableManager]: TermVariabe thread1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,892 WARN L315 ript$VariableManager]: TermVariabe thread1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,893 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,893 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,894 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,894 WARN L315 ript$VariableManager]: TermVariabe thread1Thread2of3ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,894 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,894 WARN L315 ript$VariableManager]: TermVariabe thread1Thread2of3ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,895 WARN L315 ript$VariableManager]: TermVariabe thread1Thread2of3ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,895 WARN L315 ript$VariableManager]: TermVariabe thread1Thread2of3ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,896 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,896 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,897 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,897 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,897 WARN L315 ript$VariableManager]: TermVariabe thread1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,897 WARN L315 ript$VariableManager]: TermVariabe thread1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,898 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,898 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,898 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,898 WARN L315 ript$VariableManager]: TermVariabe thread1Thread3of3ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,899 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,900 WARN L315 ript$VariableManager]: TermVariabe thread1Thread3of3ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,900 WARN L315 ript$VariableManager]: TermVariabe thread1Thread3of3ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,900 WARN L315 ript$VariableManager]: TermVariabe thread1Thread3of3ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,901 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,901 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:12,928 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-25 08:57:12,928 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:57:12,935 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-11-25 08:57:12,950 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-11-25 08:57:12,971 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:57:12,971 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:57:12,971 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:57:12,971 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:57:12,971 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:57:12,972 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:57:12,972 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:57:12,972 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:57:12,991 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 113 places, 115 transitions [2019-11-25 08:57:13,038 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 273 states. [2019-11-25 08:57:13,040 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states. [2019-11-25 08:57:13,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-25 08:57:13,049 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:13,050 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 08:57:13,051 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:13,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:13,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1913202542, now seen corresponding path program 1 times [2019-11-25 08:57:13,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:13,066 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318807081] [2019-11-25 08:57:13,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:13,474 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 08:57:13,475 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318807081] [2019-11-25 08:57:13,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:13,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:57:13,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352614183] [2019-11-25 08:57:13,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:57:13,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:13,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:57:13,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:57:13,496 INFO L87 Difference]: Start difference. First operand 273 states. Second operand 5 states. [2019-11-25 08:57:13,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:13,751 INFO L93 Difference]: Finished difference Result 271 states and 453 transitions. [2019-11-25 08:57:13,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:57:13,754 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-25 08:57:13,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:57:13,782 INFO L225 Difference]: With dead ends: 271 [2019-11-25 08:57:13,783 INFO L226 Difference]: Without dead ends: 235 [2019-11-25 08:57:13,786 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:57:13,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2019-11-25 08:57:13,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2019-11-25 08:57:13,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2019-11-25 08:57:13,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 396 transitions. [2019-11-25 08:57:13,861 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 396 transitions. Word has length 23 [2019-11-25 08:57:13,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:57:13,862 INFO L462 AbstractCegarLoop]: Abstraction has 235 states and 396 transitions. [2019-11-25 08:57:13,862 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:57:13,862 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 396 transitions. [2019-11-25 08:57:13,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-25 08:57:13,864 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:13,864 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 08:57:13,864 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:13,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:13,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1336123954, now seen corresponding path program 1 times [2019-11-25 08:57:13,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:13,865 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807806588] [2019-11-25 08:57:13,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:14,097 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 08:57:14,098 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807806588] [2019-11-25 08:57:14,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:14,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:57:14,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479350922] [2019-11-25 08:57:14,100 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:57:14,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:14,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:57:14,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:57:14,101 INFO L87 Difference]: Start difference. First operand 235 states and 396 transitions. Second operand 5 states. [2019-11-25 08:57:14,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:14,220 INFO L93 Difference]: Finished difference Result 233 states and 394 transitions. [2019-11-25 08:57:14,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:57:14,221 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-25 08:57:14,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:57:14,224 INFO L225 Difference]: With dead ends: 233 [2019-11-25 08:57:14,224 INFO L226 Difference]: Without dead ends: 227 [2019-11-25 08:57:14,225 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:57:14,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2019-11-25 08:57:14,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2019-11-25 08:57:14,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2019-11-25 08:57:14,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 388 transitions. [2019-11-25 08:57:14,267 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 388 transitions. Word has length 31 [2019-11-25 08:57:14,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:57:14,267 INFO L462 AbstractCegarLoop]: Abstraction has 227 states and 388 transitions. [2019-11-25 08:57:14,267 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:57:14,268 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 388 transitions. [2019-11-25 08:57:14,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-25 08:57:14,269 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:14,270 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] [2019-11-25 08:57:14,270 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:14,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:14,270 INFO L82 PathProgramCache]: Analyzing trace with hash -528537625, now seen corresponding path program 1 times [2019-11-25 08:57:14,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:14,271 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714496236] [2019-11-25 08:57:14,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:14,427 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 08:57:14,427 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714496236] [2019-11-25 08:57:14,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:14,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:57:14,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701427808] [2019-11-25 08:57:14,428 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:57:14,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:14,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:57:14,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:57:14,429 INFO L87 Difference]: Start difference. First operand 227 states and 388 transitions. Second operand 5 states. [2019-11-25 08:57:14,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:14,554 INFO L93 Difference]: Finished difference Result 197 states and 330 transitions. [2019-11-25 08:57:14,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:57:14,555 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2019-11-25 08:57:14,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:57:14,557 INFO L225 Difference]: With dead ends: 197 [2019-11-25 08:57:14,557 INFO L226 Difference]: Without dead ends: 157 [2019-11-25 08:57:14,557 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:57:14,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-11-25 08:57:14,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2019-11-25 08:57:14,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-11-25 08:57:14,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 255 transitions. [2019-11-25 08:57:14,566 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 255 transitions. Word has length 36 [2019-11-25 08:57:14,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:57:14,566 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 255 transitions. [2019-11-25 08:57:14,567 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:57:14,567 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 255 transitions. [2019-11-25 08:57:14,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-11-25 08:57:14,569 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:14,570 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:14,570 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:14,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:14,570 INFO L82 PathProgramCache]: Analyzing trace with hash -793279742, now seen corresponding path program 1 times [2019-11-25 08:57:14,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:14,571 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240196887] [2019-11-25 08:57:14,571 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:14,711 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 08:57:14,712 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240196887] [2019-11-25 08:57:14,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:14,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:57:14,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135638328] [2019-11-25 08:57:14,713 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:57:14,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:14,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:57:14,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:57:14,715 INFO L87 Difference]: Start difference. First operand 157 states and 255 transitions. Second operand 5 states. [2019-11-25 08:57:14,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:14,858 INFO L93 Difference]: Finished difference Result 155 states and 253 transitions. [2019-11-25 08:57:14,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:57:14,859 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2019-11-25 08:57:14,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:57:14,860 INFO L225 Difference]: With dead ends: 155 [2019-11-25 08:57:14,860 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:57:14,860 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:57:14,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:57:14,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:57:14,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:57:14,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:57:14,861 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2019-11-25 08:57:14,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:57:14,861 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:57:14,861 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:57:14,861 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:57:14,862 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:57:14,864 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-25 08:57:14,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:57:14 BasicIcfg [2019-11-25 08:57:14,866 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:57:14,867 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:57:14,867 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:57:14,867 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:57:14,867 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:12" (3/4) ... [2019-11-25 08:57:14,871 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:57:14,878 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2019-11-25 08:57:14,884 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-25 08:57:14,884 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:57:14,885 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:57:14,931 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_07ea0499-c7d0-4636-a226-505a09878056/bin/uautomizer/witness.graphml [2019-11-25 08:57:14,932 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:57:14,934 INFO L168 Benchmark]: Toolchain (without parser) took 4261.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 946.1 MB in the beginning and 824.8 MB in the end (delta: 121.3 MB). Peak memory consumption was 268.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:14,934 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:14,934 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1278.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 946.1 MB in the beginning and 1.0 GB in the end (delta: -62.0 MB). Peak memory consumption was 98.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:14,935 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.71 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 08:57:14,935 INFO L168 Benchmark]: Boogie Preprocessor took 45.85 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 08:57:14,936 INFO L168 Benchmark]: RCFGBuilder took 777.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 959.7 MB in the end (delta: 41.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:14,936 INFO L168 Benchmark]: TraceAbstraction took 2028.89 ms. Allocated memory is still 1.2 GB. Free memory was 959.7 MB in the beginning and 831.5 MB in the end (delta: 128.1 MB). Peak memory consumption was 128.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:14,937 INFO L168 Benchmark]: Witness Printer took 65.27 ms. Allocated memory is still 1.2 GB. Free memory was 831.5 MB in the beginning and 824.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:14,939 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1278.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 946.1 MB in the beginning and 1.0 GB in the end (delta: -62.0 MB). Peak memory consumption was 98.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.71 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 45.85 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 777.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 959.7 MB in the end (delta: 41.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2028.89 ms. Allocated memory is still 1.2 GB. Free memory was 959.7 MB in the beginning and 831.5 MB in the end (delta: 128.1 MB). Peak memory consumption was 128.1 MB. Max. memory is 11.5 GB. * Witness Printer took 65.27 ms. Allocated memory is still 1.2 GB. Free memory was 831.5 MB in the beginning and 824.8 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: - 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 - 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 7 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 121 locations, 7 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 296 SDtfs, 307 SDslu, 562 SDs, 0 SdLazy, 63 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=273occurred 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 7318 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...