./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_24-sound_lock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e90eb3-d9c4-44e1-b512-ac24b312686d/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e90eb3-d9c4-44e1-b512-ac24b312686d/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e90eb3-d9c4-44e1-b512-ac24b312686d/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e90eb3-d9c4-44e1-b512-ac24b312686d/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_24-sound_lock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e90eb3-d9c4-44e1-b512-ac24b312686d/bin/uautomizer-IVEQpCNsaX/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e90eb3-d9c4-44e1-b512-ac24b312686d/bin/uautomizer-IVEQpCNsaX --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 120b8e17ecc05129f7277c5998da40ba955c11083c7096c2093845469caad913 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:53:07,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:53:07,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:53:07,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:53:07,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:53:07,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:53:07,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:53:07,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:53:07,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:53:07,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:53:07,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:53:07,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:53:07,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:53:07,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:53:07,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:53:07,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:53:07,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:53:07,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:53:07,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:53:07,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:53:07,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:53:07,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:53:07,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:53:07,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:53:07,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:53:07,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:53:07,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:53:07,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:53:07,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:53:07,621 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:53:07,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:53:07,623 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:53:07,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:53:07,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:53:07,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:53:07,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:53:07,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:53:07,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:53:07,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:53:07,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:53:07,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:53:07,633 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e90eb3-d9c4-44e1-b512-ac24b312686d/bin/uautomizer-IVEQpCNsaX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-11-09 09:53:07,675 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:53:07,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:53:07,677 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:53:07,677 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:53:07,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:53:07,678 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:53:07,679 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:53:07,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:53:07,679 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:53:07,679 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 09:53:07,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:53:07,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:53:07,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:53:07,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 09:53:07,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 09:53:07,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 09:53:07,682 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-09 09:53:07,682 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:53:07,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:53:07,683 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:53:07,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 09:53:07,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:53:07,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:53:07,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 09:53:07,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:53:07,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:53:07,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 09:53:07,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 09:53:07,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:53:07,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 09:53:07,687 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 09:53:07,687 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 09:53:07,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 09:53:07,687 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:53:07,688 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_28e90eb3-d9c4-44e1-b512-ac24b312686d/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e90eb3-d9c4-44e1-b512-ac24b312686d/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 120b8e17ecc05129f7277c5998da40ba955c11083c7096c2093845469caad913 [2021-11-09 09:53:08,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:53:08,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:53:08,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:53:08,059 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:53:08,060 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:53:08,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e90eb3-d9c4-44e1-b512-ac24b312686d/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/goblint-regression/04-mutex_24-sound_lock.i [2021-11-09 09:53:08,155 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e90eb3-d9c4-44e1-b512-ac24b312686d/bin/uautomizer-IVEQpCNsaX/data/ec846c001/8ef25715919f4be796dc57d5aa8387d4/FLAG32cf56f83 [2021-11-09 09:53:08,842 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:53:08,842 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e90eb3-d9c4-44e1-b512-ac24b312686d/sv-benchmarks/c/goblint-regression/04-mutex_24-sound_lock.i [2021-11-09 09:53:08,869 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e90eb3-d9c4-44e1-b512-ac24b312686d/bin/uautomizer-IVEQpCNsaX/data/ec846c001/8ef25715919f4be796dc57d5aa8387d4/FLAG32cf56f83 [2021-11-09 09:53:09,054 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e90eb3-d9c4-44e1-b512-ac24b312686d/bin/uautomizer-IVEQpCNsaX/data/ec846c001/8ef25715919f4be796dc57d5aa8387d4 [2021-11-09 09:53:09,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:53:09,058 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:53:09,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:53:09,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:53:09,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:53:09,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:53:09" (1/1) ... [2021-11-09 09:53:09,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54dd4cfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:53:09, skipping insertion in model container [2021-11-09 09:53:09,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:53:09" (1/1) ... [2021-11-09 09:53:09,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:53:09,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:53:09,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:53:09,699 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:53:09,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:53:09,795 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:53:09,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:53:09 WrapperNode [2021-11-09 09:53:09,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:53:09,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:53:09,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:53:09,797 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:53:09,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:53:09" (1/1) ... [2021-11-09 09:53:09,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:53:09" (1/1) ... [2021-11-09 09:53:09,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:53:09,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:53:09,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:53:09,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:53:09,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:53:09" (1/1) ... [2021-11-09 09:53:09,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:53:09" (1/1) ... [2021-11-09 09:53:09,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:53:09" (1/1) ... [2021-11-09 09:53:09,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:53:09" (1/1) ... [2021-11-09 09:53:09,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:53:09" (1/1) ... [2021-11-09 09:53:09,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:53:09" (1/1) ... [2021-11-09 09:53:09,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:53:09" (1/1) ... [2021-11-09 09:53:09,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:53:09,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:53:09,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:53:09,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:53:09,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:53:09" (1/1) ... [2021-11-09 09:53:09,895 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:53:09,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e90eb3-d9c4-44e1-b512-ac24b312686d/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:53:09,933 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e90eb3-d9c4-44e1-b512-ac24b312686d/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 09:53:09,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e90eb3-d9c4-44e1-b512-ac24b312686d/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 09:53:09,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:53:09,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 09:53:09,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 09:53:09,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 09:53:09,983 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-09 09:53:09,983 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-09 09:53:09,983 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-09 09:53:09,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 09:53:09,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:53:09,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:53:09,985 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-09 09:53:10,372 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:53:10,372 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-09 09:53:10,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:53:10 BoogieIcfgContainer [2021-11-09 09:53:10,375 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:53:10,378 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 09:53:10,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 09:53:10,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 09:53:10,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 09:53:09" (1/3) ... [2021-11-09 09:53:10,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6070f79a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:53:10, skipping insertion in model container [2021-11-09 09:53:10,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:53:09" (2/3) ... [2021-11-09 09:53:10,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6070f79a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:53:10, skipping insertion in model container [2021-11-09 09:53:10,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:53:10" (3/3) ... [2021-11-09 09:53:10,387 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_24-sound_lock.i [2021-11-09 09:53:10,393 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-09 09:53:10,393 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 09:53:10,394 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-09 09:53:10,394 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-09 09:53:10,432 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,432 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,432 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,433 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,433 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,433 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,433 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,434 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,434 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,435 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,435 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,436 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,436 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,436 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,437 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,437 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,437 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,438 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,438 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,438 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,438 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,439 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,439 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,440 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,441 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,441 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,446 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,446 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,447 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,448 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,448 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,448 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 09:53:10,458 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-09 09:53:10,518 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 09:53:10,526 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 [2021-11-09 09:53:10,527 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-09 09:53:10,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 74 transitions, 156 flow [2021-11-09 09:53:10,601 INFO L129 PetriNetUnfolder]: 1/73 cut-off events. [2021-11-09 09:53:10,601 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-09 09:53:10,604 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 73 events. 1/73 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2021-11-09 09:53:10,604 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 74 transitions, 156 flow [2021-11-09 09:53:10,611 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 66 transitions, 135 flow [2021-11-09 09:53:10,659 INFO L129 PetriNetUnfolder]: 1/39 cut-off events. [2021-11-09 09:53:10,659 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-09 09:53:10,659 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:53:10,660 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] [2021-11-09 09:53:10,661 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-09 09:53:10,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:53:10,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1455671174, now seen corresponding path program 1 times [2021-11-09 09:53:10,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:53:10,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170196628] [2021-11-09 09:53:10,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:53:10,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:53:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:53:11,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:53:11,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:53:11,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170196628] [2021-11-09 09:53:11,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170196628] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:53:11,004 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:53:11,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 09:53:11,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926238016] [2021-11-09 09:53:11,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:53:11,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:53:11,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:53:11,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:53:11,036 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 74 [2021-11-09 09:53:11,041 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 66 transitions, 135 flow. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2021-11-09 09:53:11,041 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:53:11,041 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 74 [2021-11-09 09:53:11,043 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:53:11,152 INFO L129 PetriNetUnfolder]: 38/219 cut-off events. [2021-11-09 09:53:11,152 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-09 09:53:11,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 219 events. 38/219 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 858 event pairs, 15 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 279. Up to 53 conditions per place. [2021-11-09 09:53:11,157 INFO L132 encePairwiseOnDemand]: 66/74 looper letters, 16 selfloop transitions, 6 changer transitions 0/76 dead transitions. [2021-11-09 09:53:11,158 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 76 transitions, 199 flow [2021-11-09 09:53:11,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:53:11,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 09:53:11,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2021-11-09 09:53:11,171 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9459459459459459 [2021-11-09 09:53:11,172 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 210 transitions. [2021-11-09 09:53:11,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 210 transitions. [2021-11-09 09:53:11,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:53:11,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 210 transitions. [2021-11-09 09:53:11,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2021-11-09 09:53:11,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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) [2021-11-09 09:53:11,186 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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) [2021-11-09 09:53:11,188 INFO L186 Difference]: Start difference. First operand has 69 places, 66 transitions, 135 flow. Second operand 3 states and 210 transitions. [2021-11-09 09:53:11,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 76 transitions, 199 flow [2021-11-09 09:53:11,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 76 transitions, 198 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-09 09:53:11,197 INFO L242 Difference]: Finished difference. Result has 72 places, 72 transitions, 186 flow [2021-11-09 09:53:11,199 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=72, PETRI_TRANSITIONS=72} [2021-11-09 09:53:11,200 INFO L334 CegarLoopForPetriNet]: 69 programPoint places, 3 predicate places. [2021-11-09 09:53:11,200 INFO L470 AbstractCegarLoop]: Abstraction has has 72 places, 72 transitions, 186 flow [2021-11-09 09:53:11,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2021-11-09 09:53:11,201 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:53:11,201 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] [2021-11-09 09:53:11,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 09:53:11,202 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-09 09:53:11,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:53:11,203 INFO L85 PathProgramCache]: Analyzing trace with hash 960554889, now seen corresponding path program 1 times [2021-11-09 09:53:11,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:53:11,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978034989] [2021-11-09 09:53:11,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:53:11,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:53:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:53:11,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:53:11,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:53:11,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978034989] [2021-11-09 09:53:11,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978034989] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:53:11,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:53:11,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 09:53:11,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406540016] [2021-11-09 09:53:11,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:53:11,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:53:11,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:53:11,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:53:11,285 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 74 [2021-11-09 09:53:11,286 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 72 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2021-11-09 09:53:11,286 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:53:11,286 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 74 [2021-11-09 09:53:11,286 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:53:11,400 INFO L129 PetriNetUnfolder]: 56/293 cut-off events. [2021-11-09 09:53:11,401 INFO L130 PetriNetUnfolder]: For 84/86 co-relation queries the response was YES. [2021-11-09 09:53:11,403 INFO L84 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 293 events. 56/293 cut-off events. For 84/86 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1405 event pairs, 23 based on Foata normal form. 2/264 useless extension candidates. Maximal degree in co-relation 486. Up to 102 conditions per place. [2021-11-09 09:53:11,406 INFO L132 encePairwiseOnDemand]: 68/74 looper letters, 24 selfloop transitions, 7 changer transitions 0/82 dead transitions. [2021-11-09 09:53:11,406 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 82 transitions, 286 flow [2021-11-09 09:53:11,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:53:11,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 09:53:11,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2021-11-09 09:53:11,409 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9054054054054054 [2021-11-09 09:53:11,409 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 201 transitions. [2021-11-09 09:53:11,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 201 transitions. [2021-11-09 09:53:11,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:53:11,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 201 transitions. [2021-11-09 09:53:11,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2021-11-09 09:53:11,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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) [2021-11-09 09:53:11,413 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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) [2021-11-09 09:53:11,413 INFO L186 Difference]: Start difference. First operand has 72 places, 72 transitions, 186 flow. Second operand 3 states and 201 transitions. [2021-11-09 09:53:11,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 82 transitions, 286 flow [2021-11-09 09:53:11,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 82 transitions, 268 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-09 09:53:11,418 INFO L242 Difference]: Finished difference. Result has 74 places, 77 transitions, 230 flow [2021-11-09 09:53:11,418 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=74, PETRI_TRANSITIONS=77} [2021-11-09 09:53:11,419 INFO L334 CegarLoopForPetriNet]: 69 programPoint places, 5 predicate places. [2021-11-09 09:53:11,419 INFO L470 AbstractCegarLoop]: Abstraction has has 74 places, 77 transitions, 230 flow [2021-11-09 09:53:11,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2021-11-09 09:53:11,420 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:53:11,420 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] [2021-11-09 09:53:11,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 09:53:11,421 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-09 09:53:11,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:53:11,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1426401936, now seen corresponding path program 1 times [2021-11-09 09:53:11,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:53:11,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372867696] [2021-11-09 09:53:11,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:53:11,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:53:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:53:11,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:53:11,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:53:11,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372867696] [2021-11-09 09:53:11,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372867696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:53:11,469 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:53:11,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 09:53:11,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852828667] [2021-11-09 09:53:11,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:53:11,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:53:11,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:53:11,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:53:11,472 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 74 [2021-11-09 09:53:11,472 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 77 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2021-11-09 09:53:11,472 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:53:11,472 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 74 [2021-11-09 09:53:11,473 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:53:11,576 INFO L129 PetriNetUnfolder]: 58/273 cut-off events. [2021-11-09 09:53:11,576 INFO L130 PetriNetUnfolder]: For 129/129 co-relation queries the response was YES. [2021-11-09 09:53:11,578 INFO L84 FinitePrefix]: Finished finitePrefix Result has 583 conditions, 273 events. 58/273 cut-off events. For 129/129 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1256 event pairs, 17 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 545. Up to 100 conditions per place. [2021-11-09 09:53:11,581 INFO L132 encePairwiseOnDemand]: 68/74 looper letters, 27 selfloop transitions, 9 changer transitions 0/88 dead transitions. [2021-11-09 09:53:11,581 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 88 transitions, 352 flow [2021-11-09 09:53:11,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:53:11,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-09 09:53:11,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2021-11-09 09:53:11,584 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9054054054054054 [2021-11-09 09:53:11,584 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 201 transitions. [2021-11-09 09:53:11,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 201 transitions. [2021-11-09 09:53:11,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:53:11,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 201 transitions. [2021-11-09 09:53:11,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2021-11-09 09:53:11,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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) [2021-11-09 09:53:11,588 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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) [2021-11-09 09:53:11,589 INFO L186 Difference]: Start difference. First operand has 74 places, 77 transitions, 230 flow. Second operand 3 states and 201 transitions. [2021-11-09 09:53:11,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 88 transitions, 352 flow [2021-11-09 09:53:11,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 88 transitions, 332 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-09 09:53:11,595 INFO L242 Difference]: Finished difference. Result has 76 places, 82 transitions, 284 flow [2021-11-09 09:53:11,596 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=76, PETRI_TRANSITIONS=82} [2021-11-09 09:53:11,596 INFO L334 CegarLoopForPetriNet]: 69 programPoint places, 7 predicate places. [2021-11-09 09:53:11,596 INFO L470 AbstractCegarLoop]: Abstraction has has 76 places, 82 transitions, 284 flow [2021-11-09 09:53:11,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2021-11-09 09:53:11,597 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:53:11,597 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] [2021-11-09 09:53:11,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 09:53:11,598 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-09 09:53:11,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:53:11,599 INFO L85 PathProgramCache]: Analyzing trace with hash 964646472, now seen corresponding path program 1 times [2021-11-09 09:53:11,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:53:11,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458088752] [2021-11-09 09:53:11,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:53:11,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:53:11,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:53:11,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:53:11,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:53:11,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458088752] [2021-11-09 09:53:11,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458088752] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:53:11,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:53:11,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 09:53:11,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541733324] [2021-11-09 09:53:11,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 09:53:11,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:53:11,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 09:53:11,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 09:53:11,687 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 74 [2021-11-09 09:53:11,688 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 82 transitions, 284 flow. Second operand has 4 states, 4 states have (on average 63.5) internal successors, (254), 4 states have internal predecessors, (254), 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) [2021-11-09 09:53:11,688 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 09:53:11,688 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 74 [2021-11-09 09:53:11,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 09:53:11,834 INFO L129 PetriNetUnfolder]: 34/315 cut-off events. [2021-11-09 09:53:11,834 INFO L130 PetriNetUnfolder]: For 174/174 co-relation queries the response was YES. [2021-11-09 09:53:11,836 INFO L84 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 315 events. 34/315 cut-off events. For 174/174 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1631 event pairs, 5 based on Foata normal form. 2/300 useless extension candidates. Maximal degree in co-relation 468. Up to 42 conditions per place. [2021-11-09 09:53:11,838 INFO L132 encePairwiseOnDemand]: 68/74 looper letters, 11 selfloop transitions, 9 changer transitions 0/89 dead transitions. [2021-11-09 09:53:11,838 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 89 transitions, 338 flow [2021-11-09 09:53:11,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 09:53:11,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-09 09:53:11,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 327 transitions. [2021-11-09 09:53:11,845 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8837837837837837 [2021-11-09 09:53:11,845 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 327 transitions. [2021-11-09 09:53:11,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 327 transitions. [2021-11-09 09:53:11,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:53:11,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 327 transitions. [2021-11-09 09:53:11,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 65.4) internal successors, (327), 5 states have internal predecessors, (327), 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) [2021-11-09 09:53:11,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 74.0) internal successors, (444), 6 states have internal predecessors, (444), 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) [2021-11-09 09:53:11,849 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 74.0) internal successors, (444), 6 states have internal predecessors, (444), 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) [2021-11-09 09:53:11,849 INFO L186 Difference]: Start difference. First operand has 76 places, 82 transitions, 284 flow. Second operand 5 states and 327 transitions. [2021-11-09 09:53:11,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 89 transitions, 338 flow [2021-11-09 09:53:11,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 89 transitions, 320 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-09 09:53:11,863 INFO L242 Difference]: Finished difference. Result has 80 places, 88 transitions, 314 flow [2021-11-09 09:53:11,863 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=314, PETRI_PLACES=80, PETRI_TRANSITIONS=88} [2021-11-09 09:53:11,864 INFO L334 CegarLoopForPetriNet]: 69 programPoint places, 11 predicate places. [2021-11-09 09:53:11,864 INFO L470 AbstractCegarLoop]: Abstraction has has 80 places, 88 transitions, 314 flow [2021-11-09 09:53:11,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.5) internal successors, (254), 4 states have internal predecessors, (254), 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) [2021-11-09 09:53:11,865 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 09:53:11,865 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] [2021-11-09 09:53:11,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 09:53:11,865 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-09 09:53:11,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:53:11,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1910485265, now seen corresponding path program 1 times [2021-11-09 09:53:11,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:53:11,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854313011] [2021-11-09 09:53:11,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:53:11,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:53:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:53:11,916 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:53:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:53:11,998 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:53:11,999 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-09 09:53:12,000 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-11-09 09:53:12,002 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE [2021-11-09 09:53:12,002 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE [2021-11-09 09:53:12,002 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-09 09:53:12,002 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-11-09 09:53:12,002 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-11-09 09:53:12,003 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-11-09 09:53:12,003 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-11-09 09:53:12,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-09 09:53:12,007 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-09 09:53:12,013 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-09 09:53:12,013 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-09 09:53:12,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 09:53:12 BasicIcfg [2021-11-09 09:53:12,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-09 09:53:12,085 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 09:53:12,085 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 09:53:12,085 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 09:53:12,086 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:53:10" (3/4) ... [2021-11-09 09:53:12,089 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-09 09:53:12,093 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 09:53:12,095 INFO L168 Benchmark]: Toolchain (without parser) took 3035.22 ms. Allocated memory was 111.1 MB in the beginning and 138.4 MB in the end (delta: 27.3 MB). Free memory was 74.1 MB in the beginning and 68.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 16.1 GB. [2021-11-09 09:53:12,095 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 111.1 MB. Free memory was 85.3 MB in the beginning and 85.2 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:53:12,097 INFO L168 Benchmark]: CACSL2BoogieTranslator took 735.78 ms. Allocated memory is still 111.1 MB. Free memory was 73.9 MB in the beginning and 67.8 MB in the end (delta: 6.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 09:53:12,097 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.13 ms. Allocated memory is still 111.1 MB. Free memory was 67.8 MB in the beginning and 65.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:53:12,098 INFO L168 Benchmark]: Boogie Preprocessor took 27.05 ms. Allocated memory is still 111.1 MB. Free memory was 65.0 MB in the beginning and 64.1 MB in the end (delta: 929.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:53:12,098 INFO L168 Benchmark]: RCFGBuilder took 499.14 ms. Allocated memory is still 111.1 MB. Free memory was 63.6 MB in the beginning and 52.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-09 09:53:12,099 INFO L168 Benchmark]: TraceAbstraction took 1707.05 ms. Allocated memory was 111.1 MB in the beginning and 138.4 MB in the end (delta: 27.3 MB). Free memory was 51.5 MB in the beginning and 69.8 MB in the end (delta: -18.3 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. [2021-11-09 09:53:12,099 INFO L168 Benchmark]: Witness Printer took 8.01 ms. Allocated memory is still 138.4 MB. Free memory is still 68.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:53:12,102 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 111.1 MB. Free memory was 85.3 MB in the beginning and 85.2 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 735.78 ms. Allocated memory is still 111.1 MB. Free memory was 73.9 MB in the beginning and 67.8 MB in the end (delta: 6.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.13 ms. Allocated memory is still 111.1 MB. Free memory was 67.8 MB in the beginning and 65.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.05 ms. Allocated memory is still 111.1 MB. Free memory was 65.0 MB in the beginning and 64.1 MB in the end (delta: 929.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 499.14 ms. Allocated memory is still 111.1 MB. Free memory was 63.6 MB in the beginning and 52.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1707.05 ms. Allocated memory was 111.1 MB in the beginning and 138.4 MB in the end (delta: 27.3 MB). Free memory was 51.5 MB in the beginning and 69.8 MB in the end (delta: -18.3 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. * Witness Printer took 8.01 ms. Allocated memory is still 138.4 MB. Free memory is still 68.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * 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: 934]: Data race detected Data race detected The following path leads to a data race: [L918] 0 int myglobal; VAL [myglobal=0] [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={3:0}, myglobal=0] [L920] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={3:0}, mutex2={5:0}, myglobal=0] [L928] 0 int i = __VERIFIER_nondet_int(); VAL [mutex1={3:0}, mutex2={5:0}, myglobal=0] [L929] 0 pthread_t id; VAL [mutex1={3:0}, mutex2={5:0}, myglobal=0] [L930] 0 pthread_mutex_t *m = &mutex1; VAL [mutex1={3:0}, mutex2={5:0}, myglobal=0] [L931] COND TRUE 0 \read(i) VAL [mutex1={3:0}, mutex2={5:0}, myglobal=0] [L931] 0 m = &mutex2 VAL [mutex1={3:0}, mutex2={5:0}, myglobal=0] [L932] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, mutex1={3:0}, mutex2={5:0}, myglobal=0] [L923] EXPR 1 myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={3:0}, mutex2={5:0}, myglobal=0] [L923] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={3:0}, mutex2={5:0}, myglobal=1] [L934] 0 myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={3:0}, mutex2={5:0}, myglobal=1] [L923] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={3:0}, mutex2={5:0}, myglobal=1, myglobal=myglobal+1=25] [L934] 0 myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={3:0}, mutex2={5:0}, myglobal=1, myglobal=myglobal+1=25] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [923] and C: myglobal+1 [934] - UnprovableResult [Line: 934]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: 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: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 923]: 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, 91 locations, 8 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: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 18 SDslu, 6 SDs, 0 SdLazy, 78 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=314occurred in iteration=4, InterpolantAutomatonStates: 14, 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, 0.2s InterpolantComputationTime, 193 NumberOfCodeBlocks, 193 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 230 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 [2021-11-09 09:53:12,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e90eb3-d9c4-44e1-b512-ac24b312686d/bin/uautomizer-IVEQpCNsaX/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