./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-1_3-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_4363a8f1-4fed-482f-9e66-31d66bbafe4b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4363a8f1-4fed-482f-9e66-31d66bbafe4b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4363a8f1-4fed-482f-9e66-31d66bbafe4b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4363a8f1-4fed-482f-9e66-31d66bbafe4b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_3-join.i -s /tmp/vcloud-vcloud-master/worker/run_dir_4363a8f1-4fed-482f-9e66-31d66bbafe4b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4363a8f1-4fed-482f-9e66-31d66bbafe4b/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 49c57133846d828aac9e6acd0ef7186d174d92a6 .................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:49:47,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:49:47,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:49:47,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:49:47,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:49:47,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:49:47,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:49:47,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:49:47,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:49:47,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:49:47,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:49:47,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:49:47,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:49:47,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:49:47,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:49:47,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:49:47,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:49:47,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:49:47,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:49:47,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:49:47,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:49:47,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:49:47,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:49:47,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:49:47,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:49:47,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:49:47,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:49:47,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:49:47,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:49:47,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:49:47,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:49:47,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:49:47,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:49:47,750 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:49:47,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:49:47,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:49:47,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:49:47,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:49:47,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:49:47,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:49:47,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:49:47,755 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4363a8f1-4fed-482f-9e66-31d66bbafe4b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:49:47,771 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:49:47,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:49:47,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:49:47,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:49:47,774 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:49:47,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:49:47,774 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:49:47,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:49:47,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:49:47,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:49:47,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:49:47,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:49:47,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:49:47,777 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:49:47,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:49:47,778 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:49:47,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:49:47,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:49:47,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:49:47,779 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:49:47,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:49:47,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:49:47,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:49:47,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:49:47,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:49:47,781 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:49:47,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:49:47,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:49:47,781 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_4363a8f1-4fed-482f-9e66-31d66bbafe4b/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 -> 49c57133846d828aac9e6acd0ef7186d174d92a6 [2019-11-25 08:49:47,972 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:49:47,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:49:47,989 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:49:47,990 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:49:47,991 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:49:47,994 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4363a8f1-4fed-482f-9e66-31d66bbafe4b/bin/uautomizer/../../sv-benchmarks/c/ldv-races/race-1_3-join.i [2019-11-25 08:49:48,076 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4363a8f1-4fed-482f-9e66-31d66bbafe4b/bin/uautomizer/data/89688d55b/5bcafb532cf94835a56e5e257b6a0c3c/FLAG8da07f5d1 [2019-11-25 08:49:48,688 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:49:48,693 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4363a8f1-4fed-482f-9e66-31d66bbafe4b/sv-benchmarks/c/ldv-races/race-1_3-join.i [2019-11-25 08:49:48,726 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4363a8f1-4fed-482f-9e66-31d66bbafe4b/bin/uautomizer/data/89688d55b/5bcafb532cf94835a56e5e257b6a0c3c/FLAG8da07f5d1 [2019-11-25 08:49:48,891 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4363a8f1-4fed-482f-9e66-31d66bbafe4b/bin/uautomizer/data/89688d55b/5bcafb532cf94835a56e5e257b6a0c3c [2019-11-25 08:49:48,893 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:49:48,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:49:48,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:49:48,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:49:48,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:49:48,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:49:48" (1/1) ... [2019-11-25 08:49:48,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a8fb884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:48, skipping insertion in model container [2019-11-25 08:49:48,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:49:48" (1/1) ... [2019-11-25 08:49:48,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:49:48,965 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:49:49,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:49:49,889 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:49:49,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:49:50,343 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:49:50,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:50 WrapperNode [2019-11-25 08:49:50,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:49:50,345 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:49:50,345 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:49:50,345 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:49:50,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:50" (1/1) ... [2019-11-25 08:49:50,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:50" (1/1) ... [2019-11-25 08:49:50,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:49:50,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:49:50,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:49:50,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:49:50,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:50" (1/1) ... [2019-11-25 08:49:50,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:50" (1/1) ... [2019-11-25 08:49:50,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:50" (1/1) ... [2019-11-25 08:49:50,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:50" (1/1) ... [2019-11-25 08:49:50,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:50" (1/1) ... [2019-11-25 08:49:50,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:50" (1/1) ... [2019-11-25 08:49:50,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:50" (1/1) ... [2019-11-25 08:49:50,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:49:50,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:49:50,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:49:50,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:49:50,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4363a8f1-4fed-482f-9e66-31d66bbafe4b/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 08:49:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:49:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:49:50,579 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-11-25 08:49:50,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-25 08:49:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:49:50,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:49:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:49:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2019-11-25 08:49:50,580 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2019-11-25 08:49:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:49:50,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-25 08:49:50,583 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 08:49:51,296 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:49:51,296 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-25 08:49:51,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:49:51 BoogieIcfgContainer [2019-11-25 08:49:51,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:49:51,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:49:51,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:49:51,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:49:51,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:49:48" (1/3) ... [2019-11-25 08:49:51,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e6b8ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:49:51, skipping insertion in model container [2019-11-25 08:49:51,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:50" (2/3) ... [2019-11-25 08:49:51,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e6b8ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:49:51, skipping insertion in model container [2019-11-25 08:49:51,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:49:51" (3/3) ... [2019-11-25 08:49:51,306 INFO L109 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2019-11-25 08:49:51,365 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,365 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,365 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,366 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,367 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,367 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,368 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,369 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,369 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,369 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,369 WARN L315 ript$VariableManager]: TermVariabe thread1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,370 WARN L315 ript$VariableManager]: TermVariabe thread1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,370 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,370 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,371 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,371 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,372 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,372 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,372 WARN L315 ript$VariableManager]: TermVariabe thread1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,372 WARN L315 ript$VariableManager]: TermVariabe thread1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,373 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,373 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,373 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,373 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:49:51,406 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-25 08:49:51,406 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:49:51,414 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-25 08:49:51,426 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-25 08:49:51,443 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:49:51,444 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:49:51,444 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:49:51,444 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:49:51,444 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:49:51,444 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:49:51,444 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:49:51,444 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:49:51,458 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 102 places, 102 transitions [2019-11-25 08:49:51,498 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 246 states. [2019-11-25 08:49:51,501 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2019-11-25 08:49:51,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-25 08:49:51,509 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:49:51,510 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 08:49:51,511 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:49:51,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:51,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1564100926, now seen corresponding path program 1 times [2019-11-25 08:49:51,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:51,528 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524302959] [2019-11-25 08:49:51,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:51,960 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 08:49:51,961 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524302959] [2019-11-25 08:49:51,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:49:51,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:49:51,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739619343] [2019-11-25 08:49:51,968 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:49:51,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:49:51,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:49:51,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:49:51,985 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 5 states. [2019-11-25 08:49:52,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:49:52,220 INFO L93 Difference]: Finished difference Result 244 states and 391 transitions. [2019-11-25 08:49:52,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:49:52,221 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-25 08:49:52,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:49:52,234 INFO L225 Difference]: With dead ends: 244 [2019-11-25 08:49:52,234 INFO L226 Difference]: Without dead ends: 195 [2019-11-25 08:49:52,236 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 08:49:52,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2019-11-25 08:49:52,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2019-11-25 08:49:52,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2019-11-25 08:49:52,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 306 transitions. [2019-11-25 08:49:52,296 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 306 transitions. Word has length 23 [2019-11-25 08:49:52,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:49:52,297 INFO L462 AbstractCegarLoop]: Abstraction has 195 states and 306 transitions. [2019-11-25 08:49:52,297 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:49:52,297 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 306 transitions. [2019-11-25 08:49:52,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-25 08:49:52,299 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:49:52,299 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 08:49:52,300 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:49:52,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:52,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1842511002, now seen corresponding path program 1 times [2019-11-25 08:49:52,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:52,301 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176520275] [2019-11-25 08:49:52,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:52,471 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 08:49:52,472 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176520275] [2019-11-25 08:49:52,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:49:52,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:49:52,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469876557] [2019-11-25 08:49:52,474 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:49:52,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:49:52,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:49:52,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:49:52,475 INFO L87 Difference]: Start difference. First operand 195 states and 306 transitions. Second operand 5 states. [2019-11-25 08:49:52,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:49:52,631 INFO L93 Difference]: Finished difference Result 193 states and 304 transitions. [2019-11-25 08:49:52,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:49:52,632 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-25 08:49:52,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:49:52,635 INFO L225 Difference]: With dead ends: 193 [2019-11-25 08:49:52,635 INFO L226 Difference]: Without dead ends: 193 [2019-11-25 08:49:52,636 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:49:52,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-11-25 08:49:52,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2019-11-25 08:49:52,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-11-25 08:49:52,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 304 transitions. [2019-11-25 08:49:52,681 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 304 transitions. Word has length 31 [2019-11-25 08:49:52,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:49:52,682 INFO L462 AbstractCegarLoop]: Abstraction has 193 states and 304 transitions. [2019-11-25 08:49:52,682 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:49:52,682 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 304 transitions. [2019-11-25 08:49:52,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-25 08:49:52,684 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:49:52,685 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] [2019-11-25 08:49:52,685 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:49:52,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:52,686 INFO L82 PathProgramCache]: Analyzing trace with hash -241717493, now seen corresponding path program 1 times [2019-11-25 08:49:52,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:52,686 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013575941] [2019-11-25 08:49:52,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:52,884 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 08:49:52,885 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013575941] [2019-11-25 08:49:52,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:49:52,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:49:52,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768965488] [2019-11-25 08:49:52,886 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:49:52,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:49:52,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:49:52,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:49:52,887 INFO L87 Difference]: Start difference. First operand 193 states and 304 transitions. Second operand 5 states. [2019-11-25 08:49:53,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:49:53,143 INFO L93 Difference]: Finished difference Result 236 states and 366 transitions. [2019-11-25 08:49:53,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:49:53,144 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2019-11-25 08:49:53,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:49:53,147 INFO L225 Difference]: With dead ends: 236 [2019-11-25 08:49:53,147 INFO L226 Difference]: Without dead ends: 218 [2019-11-25 08:49:53,148 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 08:49:53,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2019-11-25 08:49:53,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 181. [2019-11-25 08:49:53,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2019-11-25 08:49:53,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 296 transitions. [2019-11-25 08:49:53,179 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 296 transitions. Word has length 41 [2019-11-25 08:49:53,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:49:53,182 INFO L462 AbstractCegarLoop]: Abstraction has 181 states and 296 transitions. [2019-11-25 08:49:53,182 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:49:53,182 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 296 transitions. [2019-11-25 08:49:53,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-25 08:49:53,188 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:49:53,188 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] [2019-11-25 08:49:53,189 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:49:53,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:53,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1067222637, now seen corresponding path program 1 times [2019-11-25 08:49:53,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:53,190 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628357560] [2019-11-25 08:49:53,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:53,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:53,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:53,335 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:53,336 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:49:53,416 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-25 08:49:53,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:49:53 BasicIcfg [2019-11-25 08:49:53,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:49:53,418 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:49:53,418 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:49:53,419 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:49:53,419 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:49:51" (3/4) ... [2019-11-25 08:49:53,422 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:49:53,502 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4363a8f1-4fed-482f-9e66-31d66bbafe4b/bin/uautomizer/witness.graphml [2019-11-25 08:49:53,502 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:49:53,505 INFO L168 Benchmark]: Toolchain (without parser) took 4609.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 944.6 MB in the beginning and 805.3 MB in the end (delta: 139.3 MB). Peak memory consumption was 262.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:53,505 INFO L168 Benchmark]: CDTParser took 0.35 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 08:49:53,506 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1449.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 944.6 MB in the beginning and 989.4 MB in the end (delta: -44.9 MB). Peak memory consumption was 90.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:53,507 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.80 ms. Allocated memory is still 1.2 GB. Free memory was 989.4 MB in the beginning and 982.3 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:53,508 INFO L168 Benchmark]: Boogie Preprocessor took 63.08 ms. Allocated memory is still 1.2 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:49:53,508 INFO L168 Benchmark]: RCFGBuilder took 811.76 ms. Allocated memory is still 1.2 GB. Free memory was 982.3 MB in the beginning and 933.5 MB in the end (delta: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:53,509 INFO L168 Benchmark]: TraceAbstraction took 2118.76 ms. Allocated memory is still 1.2 GB. Free memory was 933.5 MB in the beginning and 805.3 MB in the end (delta: 128.2 MB). Peak memory consumption was 128.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:53,509 INFO L168 Benchmark]: Witness Printer took 84.14 ms. Allocated memory is still 1.2 GB. Free memory is still 805.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:49:53,513 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 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 1449.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 944.6 MB in the beginning and 989.4 MB in the end (delta: -44.9 MB). Peak memory consumption was 90.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 77.80 ms. Allocated memory is still 1.2 GB. Free memory was 989.4 MB in the beginning and 982.3 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 63.08 ms. Allocated memory is still 1.2 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 811.76 ms. Allocated memory is still 1.2 GB. Free memory was 982.3 MB in the beginning and 933.5 MB in the end (delta: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2118.76 ms. Allocated memory is still 1.2 GB. Free memory was 933.5 MB in the beginning and 805.3 MB in the end (delta: 128.2 MB). Peak memory consumption was 128.2 MB. Max. memory is 11.5 GB. * Witness Printer took 84.14 ms. Allocated memory is still 1.2 GB. Free memory is still 805.3 MB. There was no memory consumed. 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={5:0}, pdev=0, t1={3:0}] [L1694] 0 pdev = 1 VAL [mutex={5:0}, pdev=1, t1={3:0}] [L1682] COND FALSE 0 !(!expression) VAL [mutex={5:0}, pdev=1, t1={3:0}] [L1696] COND TRUE 0 __VERIFIER_nondet_int() VAL [mutex={5:0}, pdev=1, t1={3:0}] [L1697] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={5:0}, pdev=1, t1={3:0}] [L1698] 0 return 0; VAL [arg={0:0}, mutex={5:0}, pdev=1, t1={3:0}] [L1715] COND FALSE 0 !(module_init()!=0) VAL [arg={0:0}, arg={0:0}, mutex={5:0}, pdev=1, t1={3:0}] [L1706] 0 void *status; VAL [arg={0:0}, arg={0:0}, mutex={5:0}, pdev=1, t1={3:0}] [L1707] 0 pdev = 4 VAL [arg={0:0}, arg={0:0}, mutex={5:0}, pdev=4, t1={3:0}] [L1688] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={5:0}, pdev=6, t1={3:0}] [L1682] COND TRUE 0 !expression VAL [arg={0:0}, arg={0:0}, mutex={5:0}, pdev=6, t1={3:0}] [L1682] 0 __VERIFIER_error() VAL [arg={0:0}, arg={0:0}, mutex={5:0}, pdev=6, t1={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 104 locations, 4 error locations. Result: UNSAFE, OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 227 SDtfs, 307 SDslu, 448 SDs, 0 SdLazy, 91 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=246occurred 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, 3 MinimizatonAttempts, 37 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 3996 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...