./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_06-ps_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c68d8cd-6034-43d9-948c-3e36f7423f2b/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c68d8cd-6034-43d9-948c-3e36f7423f2b/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c68d8cd-6034-43d9-948c-3e36f7423f2b/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c68d8cd-6034-43d9-948c-3e36f7423f2b/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_06-ps_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c68d8cd-6034-43d9-948c-3e36f7423f2b/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c68d8cd-6034-43d9-948c-3e36f7423f2b/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c11b7127fb2beec6d5e726c9468c73fdf6ccc05ef40eceb17d287e75d34e535a --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:24:42,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:24:42,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:24:42,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:24:42,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:24:42,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:24:42,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:24:42,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:24:42,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:24:42,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:24:42,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:24:42,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:24:42,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:24:42,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:24:42,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:24:42,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:24:42,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:24:42,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:24:42,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:24:42,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:24:42,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:24:42,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:24:42,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:24:42,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:24:42,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:24:42,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:24:42,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:24:42,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:24:42,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:24:42,719 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:24:42,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:24:42,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:24:42,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:24:42,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:24:42,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:24:42,722 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:24:42,723 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:24:42,723 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:24:42,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:24:42,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:24:42,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:24:42,725 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c68d8cd-6034-43d9-948c-3e36f7423f2b/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-12-06 18:24:42,742 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:24:42,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:24:42,743 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:24:42,743 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:24:42,743 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:24:42,743 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:24:42,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:24:42,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:24:42,744 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:24:42,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:24:42,745 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 18:24:42,745 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 18:24:42,745 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:24:42,745 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 18:24:42,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:24:42,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 18:24:42,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:24:42,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 18:24:42,746 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-12-06 18:24:42,746 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 18:24:42,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 18:24:42,746 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:24:42,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 18:24:42,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:24:42,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:24:42,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:24:42,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:24:42,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:24:42,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:24:42,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 18:24:42,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:24:42,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 18:24:42,747 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 18:24:42,747 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 18:24:42,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 18:24:42,748 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:24:42,748 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c68d8cd-6034-43d9-948c-3e36f7423f2b/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c68d8cd-6034-43d9-948c-3e36f7423f2b/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c11b7127fb2beec6d5e726c9468c73fdf6ccc05ef40eceb17d287e75d34e535a [2021-12-06 18:24:42,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:24:42,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:24:42,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:24:42,943 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:24:42,944 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:24:42,945 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c68d8cd-6034-43d9-948c-3e36f7423f2b/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/goblint-regression/04-mutex_06-ps_rc.i [2021-12-06 18:24:42,986 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c68d8cd-6034-43d9-948c-3e36f7423f2b/bin/uautomizer-DrprNOufMa/data/2f0e06fd5/07ee7403227c434a8de3b1036dd58458/FLAG4460f709c [2021-12-06 18:24:43,420 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:24:43,421 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c68d8cd-6034-43d9-948c-3e36f7423f2b/sv-benchmarks/c/goblint-regression/04-mutex_06-ps_rc.i [2021-12-06 18:24:43,433 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c68d8cd-6034-43d9-948c-3e36f7423f2b/bin/uautomizer-DrprNOufMa/data/2f0e06fd5/07ee7403227c434a8de3b1036dd58458/FLAG4460f709c [2021-12-06 18:24:43,445 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c68d8cd-6034-43d9-948c-3e36f7423f2b/bin/uautomizer-DrprNOufMa/data/2f0e06fd5/07ee7403227c434a8de3b1036dd58458 [2021-12-06 18:24:43,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:24:43,449 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:24:43,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:24:43,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:24:43,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:24:43,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:24:43" (1/1) ... [2021-12-06 18:24:43,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2afd84ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:24:43, skipping insertion in model container [2021-12-06 18:24:43,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:24:43" (1/1) ... [2021-12-06 18:24:43,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:24:43,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:24:43,781 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:24:43,794 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:24:43,836 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:24:43,879 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:24:43,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:24:43 WrapperNode [2021-12-06 18:24:43,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:24:43,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:24:43,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:24:43,880 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:24:43,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:24:43" (1/1) ... [2021-12-06 18:24:43,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:24:43" (1/1) ... [2021-12-06 18:24:43,920 INFO L137 Inliner]: procedures = 266, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2021-12-06 18:24:43,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:24:43,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:24:43,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:24:43,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:24:43,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:24:43" (1/1) ... [2021-12-06 18:24:43,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:24:43" (1/1) ... [2021-12-06 18:24:43,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:24:43" (1/1) ... [2021-12-06 18:24:43,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:24:43" (1/1) ... [2021-12-06 18:24:43,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:24:43" (1/1) ... [2021-12-06 18:24:43,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:24:43" (1/1) ... [2021-12-06 18:24:43,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:24:43" (1/1) ... [2021-12-06 18:24:43,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:24:43,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:24:43,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:24:43,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:24:43,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:24:43" (1/1) ... [2021-12-06 18:24:43,952 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:24:43,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c68d8cd-6034-43d9-948c-3e36f7423f2b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:24:43,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c68d8cd-6034-43d9-948c-3e36f7423f2b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 18:24:43,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c68d8cd-6034-43d9-948c-3e36f7423f2b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 18:24:44,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 18:24:44,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 18:24:44,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 18:24:44,006 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-06 18:24:44,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 18:24:44,007 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-06 18:24:44,007 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-06 18:24:44,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 18:24:44,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:24:44,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:24:44,008 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-06 18:24:44,102 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:24:44,103 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:24:44,237 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:24:44,245 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:24:44,246 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 18:24:44,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:24:44 BoogieIcfgContainer [2021-12-06 18:24:44,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:24:44,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 18:24:44,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 18:24:44,253 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 18:24:44,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:24:43" (1/3) ... [2021-12-06 18:24:44,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b28f833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:24:44, skipping insertion in model container [2021-12-06 18:24:44,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:24:43" (2/3) ... [2021-12-06 18:24:44,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b28f833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:24:44, skipping insertion in model container [2021-12-06 18:24:44,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:24:44" (3/3) ... [2021-12-06 18:24:44,256 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_06-ps_rc.i [2021-12-06 18:24:44,262 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-06 18:24:44,262 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 18:24:44,262 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-06 18:24:44,262 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-06 18:24:44,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,286 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,287 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,287 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,287 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,294 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,294 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:24:44,297 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-06 18:24:44,340 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 18:24:44,345 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 18:24:44,345 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-12-06 18:24:44,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 83 transitions, 171 flow [2021-12-06 18:24:44,382 INFO L129 PetriNetUnfolder]: 3/82 cut-off events. [2021-12-06 18:24:44,383 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 18:24:44,385 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 82 events. 3/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 100 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2021-12-06 18:24:44,385 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 83 transitions, 171 flow [2021-12-06 18:24:44,388 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 82 transitions, 167 flow [2021-12-06 18:24:44,398 INFO L129 PetriNetUnfolder]: 1/47 cut-off events. [2021-12-06 18:24:44,398 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 18:24:44,399 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:24:44,399 INFO L254 CegarLoopForPetriNet]: 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] [2021-12-06 18:24:44,399 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 18:24:44,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:24:44,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1641404404, now seen corresponding path program 1 times [2021-12-06 18:24:44,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:24:44,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362392363] [2021-12-06 18:24:44,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:24:44,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:24:44,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:24:44,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:24:44,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:24:44,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362392363] [2021-12-06 18:24:44,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362392363] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:24:44,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:24:44,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:24:44,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140952494] [2021-12-06 18:24:44,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:24:44,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:24:44,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:24:44,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:24:44,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:24:44,630 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 83 [2021-12-06 18:24:44,633 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 82 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:24:44,634 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:24:44,634 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 83 [2021-12-06 18:24:44,635 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:24:44,714 INFO L129 PetriNetUnfolder]: 45/262 cut-off events. [2021-12-06 18:24:44,714 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 18:24:44,715 INFO L84 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 262 events. 45/262 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1027 event pairs, 15 based on Foata normal form. 0/228 useless extension candidates. Maximal degree in co-relation 318. Up to 54 conditions per place. [2021-12-06 18:24:44,717 INFO L132 encePairwiseOnDemand]: 75/83 looper letters, 17 selfloop transitions, 6 changer transitions 0/92 dead transitions. [2021-12-06 18:24:44,718 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 92 transitions, 233 flow [2021-12-06 18:24:44,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:24:44,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 18:24:44,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 235 transitions. [2021-12-06 18:24:44,728 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9437751004016064 [2021-12-06 18:24:44,728 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 235 transitions. [2021-12-06 18:24:44,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 235 transitions. [2021-12-06 18:24:44,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:24:44,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 235 transitions. [2021-12-06 18:24:44,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:24:44,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:24:44,738 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:24:44,739 INFO L186 Difference]: Start difference. First operand has 83 places, 82 transitions, 167 flow. Second operand 3 states and 235 transitions. [2021-12-06 18:24:44,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 92 transitions, 233 flow [2021-12-06 18:24:44,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 92 transitions, 232 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 18:24:44,746 INFO L242 Difference]: Finished difference. Result has 86 places, 88 transitions, 218 flow [2021-12-06 18:24:44,748 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=86, PETRI_TRANSITIONS=88} [2021-12-06 18:24:44,751 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 3 predicate places. [2021-12-06 18:24:44,751 INFO L470 AbstractCegarLoop]: Abstraction has has 86 places, 88 transitions, 218 flow [2021-12-06 18:24:44,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:24:44,751 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:24:44,751 INFO L254 CegarLoopForPetriNet]: 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] [2021-12-06 18:24:44,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 18:24:44,752 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 18:24:44,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:24:44,752 INFO L85 PathProgramCache]: Analyzing trace with hash 163817509, now seen corresponding path program 1 times [2021-12-06 18:24:44,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:24:44,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819258495] [2021-12-06 18:24:44,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:24:44,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:24:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:24:44,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:24:44,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:24:44,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819258495] [2021-12-06 18:24:44,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819258495] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:24:44,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:24:44,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:24:44,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173822267] [2021-12-06 18:24:44,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:24:44,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:24:44,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:24:44,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:24:44,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:24:44,813 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 83 [2021-12-06 18:24:44,813 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 88 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:24:44,813 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:24:44,813 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 83 [2021-12-06 18:24:44,814 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:24:44,872 INFO L129 PetriNetUnfolder]: 67/350 cut-off events. [2021-12-06 18:24:44,872 INFO L130 PetriNetUnfolder]: For 87/96 co-relation queries the response was YES. [2021-12-06 18:24:44,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 580 conditions, 350 events. 67/350 cut-off events. For 87/96 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1648 event pairs, 20 based on Foata normal form. 2/315 useless extension candidates. Maximal degree in co-relation 539. Up to 102 conditions per place. [2021-12-06 18:24:44,875 INFO L132 encePairwiseOnDemand]: 77/83 looper letters, 24 selfloop transitions, 7 changer transitions 1/98 dead transitions. [2021-12-06 18:24:44,875 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 98 transitions, 318 flow [2021-12-06 18:24:44,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:24:44,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 18:24:44,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 228 transitions. [2021-12-06 18:24:44,879 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9156626506024096 [2021-12-06 18:24:44,879 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 228 transitions. [2021-12-06 18:24:44,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 228 transitions. [2021-12-06 18:24:44,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:24:44,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 228 transitions. [2021-12-06 18:24:44,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:24:44,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:24:44,883 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:24:44,883 INFO L186 Difference]: Start difference. First operand has 86 places, 88 transitions, 218 flow. Second operand 3 states and 228 transitions. [2021-12-06 18:24:44,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 98 transitions, 318 flow [2021-12-06 18:24:44,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 98 transitions, 300 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 18:24:44,888 INFO L242 Difference]: Finished difference. Result has 88 places, 92 transitions, 260 flow [2021-12-06 18:24:44,889 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=88, PETRI_TRANSITIONS=92} [2021-12-06 18:24:44,890 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 5 predicate places. [2021-12-06 18:24:44,890 INFO L470 AbstractCegarLoop]: Abstraction has has 88 places, 92 transitions, 260 flow [2021-12-06 18:24:44,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:24:44,890 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:24:44,890 INFO L254 CegarLoopForPetriNet]: 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] [2021-12-06 18:24:44,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 18:24:44,891 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 18:24:44,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:24:44,891 INFO L85 PathProgramCache]: Analyzing trace with hash 2144798248, now seen corresponding path program 1 times [2021-12-06 18:24:44,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:24:44,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485852929] [2021-12-06 18:24:44,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:24:44,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:24:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:24:44,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:24:44,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:24:44,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485852929] [2021-12-06 18:24:44,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485852929] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:24:44,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:24:44,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:24:44,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785717501] [2021-12-06 18:24:44,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:24:44,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:24:44,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:24:44,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:24:44,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:24:44,940 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 83 [2021-12-06 18:24:44,940 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 92 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:24:44,940 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:24:44,941 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 83 [2021-12-06 18:24:44,941 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:24:44,969 INFO L129 PetriNetUnfolder]: 19/269 cut-off events. [2021-12-06 18:24:44,969 INFO L130 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2021-12-06 18:24:44,970 INFO L84 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 269 events. 19/269 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1177 event pairs, 2 based on Foata normal form. 1/251 useless extension candidates. Maximal degree in co-relation 350. Up to 28 conditions per place. [2021-12-06 18:24:44,971 INFO L132 encePairwiseOnDemand]: 80/83 looper letters, 6 selfloop transitions, 1 changer transitions 1/92 dead transitions. [2021-12-06 18:24:44,971 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 92 transitions, 276 flow [2021-12-06 18:24:44,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:24:44,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 18:24:44,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 231 transitions. [2021-12-06 18:24:44,973 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.927710843373494 [2021-12-06 18:24:44,973 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 231 transitions. [2021-12-06 18:24:44,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 231 transitions. [2021-12-06 18:24:44,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:24:44,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 231 transitions. [2021-12-06 18:24:44,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:24:44,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:24:44,975 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:24:44,975 INFO L186 Difference]: Start difference. First operand has 88 places, 92 transitions, 260 flow. Second operand 3 states and 231 transitions. [2021-12-06 18:24:44,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 92 transitions, 276 flow [2021-12-06 18:24:44,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 92 transitions, 262 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 18:24:44,978 INFO L242 Difference]: Finished difference. Result has 89 places, 91 transitions, 249 flow [2021-12-06 18:24:44,979 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=249, PETRI_PLACES=89, PETRI_TRANSITIONS=91} [2021-12-06 18:24:44,979 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 6 predicate places. [2021-12-06 18:24:44,979 INFO L470 AbstractCegarLoop]: Abstraction has has 89 places, 91 transitions, 249 flow [2021-12-06 18:24:44,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:24:44,980 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:24:44,980 INFO L254 CegarLoopForPetriNet]: 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] [2021-12-06 18:24:44,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 18:24:44,980 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 18:24:44,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:24:44,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1743137408, now seen corresponding path program 1 times [2021-12-06 18:24:44,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:24:44,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083208587] [2021-12-06 18:24:44,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:24:44,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:24:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:24:45,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:24:45,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:24:45,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083208587] [2021-12-06 18:24:45,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083208587] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:24:45,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:24:45,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:24:45,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996229717] [2021-12-06 18:24:45,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:24:45,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:24:45,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:24:45,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:24:45,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:24:45,019 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 83 [2021-12-06 18:24:45,020 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 91 transitions, 249 flow. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:24:45,020 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:24:45,020 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 83 [2021-12-06 18:24:45,020 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:24:45,082 INFO L129 PetriNetUnfolder]: 57/372 cut-off events. [2021-12-06 18:24:45,082 INFO L130 PetriNetUnfolder]: For 87/95 co-relation queries the response was YES. [2021-12-06 18:24:45,084 INFO L84 FinitePrefix]: Finished finitePrefix Result has 656 conditions, 372 events. 57/372 cut-off events. For 87/95 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1909 event pairs, 16 based on Foata normal form. 0/353 useless extension candidates. Maximal degree in co-relation 612. Up to 101 conditions per place. [2021-12-06 18:24:45,085 INFO L132 encePairwiseOnDemand]: 77/83 looper letters, 21 selfloop transitions, 7 changer transitions 10/102 dead transitions. [2021-12-06 18:24:45,085 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 102 transitions, 367 flow [2021-12-06 18:24:45,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:24:45,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 18:24:45,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2021-12-06 18:24:45,087 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9076305220883534 [2021-12-06 18:24:45,087 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 226 transitions. [2021-12-06 18:24:45,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 226 transitions. [2021-12-06 18:24:45,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:24:45,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 226 transitions. [2021-12-06 18:24:45,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:24:45,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:24:45,091 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:24:45,091 INFO L186 Difference]: Start difference. First operand has 89 places, 91 transitions, 249 flow. Second operand 3 states and 226 transitions. [2021-12-06 18:24:45,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 102 transitions, 367 flow [2021-12-06 18:24:45,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 102 transitions, 363 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-12-06 18:24:45,095 INFO L242 Difference]: Finished difference. Result has 91 places, 90 transitions, 277 flow [2021-12-06 18:24:45,096 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=277, PETRI_PLACES=91, PETRI_TRANSITIONS=90} [2021-12-06 18:24:45,097 INFO L334 CegarLoopForPetriNet]: 83 programPoint places, 8 predicate places. [2021-12-06 18:24:45,097 INFO L470 AbstractCegarLoop]: Abstraction has has 91 places, 90 transitions, 277 flow [2021-12-06 18:24:45,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:24:45,097 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:24:45,097 INFO L254 CegarLoopForPetriNet]: 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] [2021-12-06 18:24:45,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 18:24:45,098 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 18:24:45,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:24:45,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1969529772, now seen corresponding path program 1 times [2021-12-06 18:24:45,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:24:45,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124850590] [2021-12-06 18:24:45,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:24:45,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:24:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:24:45,127 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:24:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:24:45,161 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:24:45,162 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 18:24:45,162 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2021-12-06 18:24:45,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2021-12-06 18:24:45,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 7 remaining) [2021-12-06 18:24:45,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2021-12-06 18:24:45,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2021-12-06 18:24:45,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2021-12-06 18:24:45,165 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2021-12-06 18:24:45,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 18:24:45,168 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-12-06 18:24:45,172 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-06 18:24:45,172 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 18:24:45,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 06:24:45 BasicIcfg [2021-12-06 18:24:45,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 18:24:45,202 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 18:24:45,202 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 18:24:45,202 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 18:24:45,202 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:24:44" (3/4) ... [2021-12-06 18:24:45,204 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 18:24:45,204 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 18:24:45,205 INFO L158 Benchmark]: Toolchain (without parser) took 1755.80ms. Allocated memory was 121.6MB in the beginning and 153.1MB in the end (delta: 31.5MB). Free memory was 79.5MB in the beginning and 103.3MB in the end (delta: -23.8MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2021-12-06 18:24:45,205 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 121.6MB. Free memory is still 97.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:24:45,206 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.61ms. Allocated memory is still 121.6MB. Free memory was 79.3MB in the beginning and 77.0MB in the end (delta: 2.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 18:24:45,206 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.45ms. Allocated memory is still 121.6MB. Free memory was 77.0MB in the beginning and 74.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 18:24:45,207 INFO L158 Benchmark]: Boogie Preprocessor took 23.19ms. Allocated memory is still 121.6MB. Free memory was 74.9MB in the beginning and 73.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 18:24:45,207 INFO L158 Benchmark]: RCFGBuilder took 302.94ms. Allocated memory is still 121.6MB. Free memory was 73.3MB in the beginning and 61.6MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 18:24:45,208 INFO L158 Benchmark]: TraceAbstraction took 951.58ms. Allocated memory was 121.6MB in the beginning and 153.1MB in the end (delta: 31.5MB). Free memory was 60.7MB in the beginning and 103.3MB in the end (delta: -42.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:24:45,208 INFO L158 Benchmark]: Witness Printer took 2.45ms. Allocated memory is still 153.1MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:24:45,210 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 121.6MB. Free memory is still 97.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 428.61ms. Allocated memory is still 121.6MB. Free memory was 79.3MB in the beginning and 77.0MB in the end (delta: 2.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.45ms. Allocated memory is still 121.6MB. Free memory was 77.0MB in the beginning and 74.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.19ms. Allocated memory is still 121.6MB. Free memory was 74.9MB in the beginning and 73.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 302.94ms. Allocated memory is still 121.6MB. Free memory was 73.3MB in the beginning and 61.6MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 951.58ms. Allocated memory was 121.6MB in the beginning and 153.1MB in the end (delta: 31.5MB). Free memory was 60.7MB in the beginning and 103.3MB in the end (delta: -42.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.45ms. Allocated memory is still 153.1MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 946]: Data race detected Data race detected The following path leads to a data race: [L928] 0 int glob; VAL [glob=0] [L929] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [glob=0, m={4:0}] [L930] 0 pthread_mutex_t n = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [glob=0, m={4:0}, n={5:0}] [L938] 0 int i = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=1, glob=0, i=1, m={4:0}, n={5:0}] [L939] 0 pthread_t id; VAL [glob=0, i=1, id={6:0}, m={4:0}, n={5:0}] [L940] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob=0, i=1, id={6:0}, m={4:0}, n={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L933] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=0, m={4:0}, n={5:0}] [L942] COND TRUE 0 \read(i) VAL [arg={0:0}, arg={0:0}, glob=0, i=1, id={6:0}, m={4:0}, n={5:0}] [L945] COND TRUE 0 \read(i) VAL [arg={0:0}, arg={0:0}, glob=0, i=1, id={6:0}, m={4:0}, n={5:0}] [L946] 0 glob++ VAL [arg={0:0}, arg={0:0}, glob=0, i=1, id={6:0}, m={4:0}, n={5:0}] [L933] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, glob++=0, glob++=25, m={4:0}, n={5:0}] [L946] 0 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, glob++=0, glob++=25, i=1, id={6:0}, m={4:0}, n={5:0}] Now there is a data race on ~glob~0 between C: glob++ [933] and C: glob++ [946] - UnprovableResult [Line: 946]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 940]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 933]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 933]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 100 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 48 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=277occurred in iteration=4, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 175 ConstructedInterpolants, 0 QuantifiedInterpolants, 185 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-06 18:24:45,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c68d8cd-6034-43d9-948c-3e36f7423f2b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE