./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-subst.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 b68e155d55184c39a54e11a2c420443b840324481c8995060134516395f2d120 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:32:06,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:32:06,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:32:06,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:32:06,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:32:06,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:32:06,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:32:06,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:32:06,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:32:06,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:32:06,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:32:06,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:32:06,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:32:06,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:32:06,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:32:06,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:32:06,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:32:06,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:32:06,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:32:06,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:32:06,810 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:32:06,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:32:06,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:32:06,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:32:06,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:32:06,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:32:06,822 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:32:06,822 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:32:06,824 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:32:06,824 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:32:06,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:32:06,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:32:06,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:32:06,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:32:06,829 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:32:06,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:32:06,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:32:06,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:32:06,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:32:06,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:32:06,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:32:06,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:32:06,836 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:32:06,865 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:32:06,866 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:32:06,866 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:32:06,867 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:32:06,867 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:32:06,868 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:32:06,868 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:32:06,868 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:32:06,868 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:32:06,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:32:06,869 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:32:06,869 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:32:06,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:32:06,870 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:32:06,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:32:06,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:32:06,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:32:06,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:32:06,871 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:32:06,871 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:32:06,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:32:06,871 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:32:06,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:32:06,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:32:06,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:32:06,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:32:06,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:32:06,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:32:06,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:32:06,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:32:06,873 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:32:06,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:32:06,873 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:32:06,873 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:32:06,874 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:32:06,875 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b68e155d55184c39a54e11a2c420443b840324481c8995060134516395f2d120 [2022-04-18 16:32:07,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:32:07,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:32:07,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:32:07,159 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:32:07,160 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:32:07,161 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-subst.wvr.c [2022-04-18 16:32:07,219 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bc3a4011/395f4bac936c49a6bcd77f04ccb07191/FLAG0d0377bbe [2022-04-18 16:32:07,633 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:32:07,634 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-subst.wvr.c [2022-04-18 16:32:07,644 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bc3a4011/395f4bac936c49a6bcd77f04ccb07191/FLAG0d0377bbe [2022-04-18 16:32:08,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bc3a4011/395f4bac936c49a6bcd77f04ccb07191 [2022-04-18 16:32:08,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:32:08,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:32:08,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:32:08,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:32:08,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:32:08,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:32:08" (1/1) ... [2022-04-18 16:32:08,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@610b1683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:08, skipping insertion in model container [2022-04-18 16:32:08,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:32:08" (1/1) ... [2022-04-18 16:32:08,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:32:08,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:32:08,252 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-subst.wvr.c[3097,3110] [2022-04-18 16:32:08,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:32:08,265 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:32:08,295 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-subst.wvr.c[3097,3110] [2022-04-18 16:32:08,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:32:08,313 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:32:08,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:08 WrapperNode [2022-04-18 16:32:08,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:32:08,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:32:08,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:32:08,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:32:08,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:08" (1/1) ... [2022-04-18 16:32:08,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:08" (1/1) ... [2022-04-18 16:32:08,402 INFO L137 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 17, calls inlined = 25, statements flattened = 463 [2022-04-18 16:32:08,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:32:08,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:32:08,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:32:08,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:32:08,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:08" (1/1) ... [2022-04-18 16:32:08,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:08" (1/1) ... [2022-04-18 16:32:08,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:08" (1/1) ... [2022-04-18 16:32:08,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:08" (1/1) ... [2022-04-18 16:32:08,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:08" (1/1) ... [2022-04-18 16:32:08,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:08" (1/1) ... [2022-04-18 16:32:08,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:08" (1/1) ... [2022-04-18 16:32:08,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:32:08,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:32:08,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:32:08,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:32:08,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:08" (1/1) ... [2022-04-18 16:32:08,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:32:08,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:32:08,527 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 16:32:08,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 16:32:08,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:32:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:32:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:32:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:32:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:32:08,558 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:32:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:32:08,559 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:32:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:32:08,559 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:32:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:32:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 16:32:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:32:08,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:32:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:32:08,561 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 16:32:08,714 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:32:08,716 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:32:09,370 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:32:09,389 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:32:09,389 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-04-18 16:32:09,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:32:09 BoogieIcfgContainer [2022-04-18 16:32:09,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:32:09,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:32:09,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:32:09,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:32:09,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:32:08" (1/3) ... [2022-04-18 16:32:09,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ead3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:32:09, skipping insertion in model container [2022-04-18 16:32:09,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:08" (2/3) ... [2022-04-18 16:32:09,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ead3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:32:09, skipping insertion in model container [2022-04-18 16:32:09,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:32:09" (3/3) ... [2022-04-18 16:32:09,404 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-chromosome-subst.wvr.c [2022-04-18 16:32:09,409 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:32:09,409 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:32:09,409 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2022-04-18 16:32:09,410 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:32:09,588 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 16:32:09,642 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:32:09,653 INFO L340 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 [2022-04-18 16:32:09,653 INFO L341 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2022-04-18 16:32:09,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 582 places, 605 transitions, 1234 flow [2022-04-18 16:32:09,935 INFO L129 PetriNetUnfolder]: 33/602 cut-off events. [2022-04-18 16:32:09,935 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 16:32:09,951 INFO L84 FinitePrefix]: Finished finitePrefix Result has 615 conditions, 602 events. 33/602 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1328 event pairs, 0 based on Foata normal form. 0/519 useless extension candidates. Maximal degree in co-relation 426. Up to 2 conditions per place. [2022-04-18 16:32:09,952 INFO L82 GeneralOperation]: Start removeDead. Operand has 582 places, 605 transitions, 1234 flow [2022-04-18 16:32:09,968 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 558 places, 579 transitions, 1176 flow [2022-04-18 16:32:09,986 INFO L129 PetriNetUnfolder]: 3/66 cut-off events. [2022-04-18 16:32:09,987 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:32:09,987 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:09,988 INFO L255 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] [2022-04-18 16:32:09,988 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-04-18 16:32:09,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:09,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1170469308, now seen corresponding path program 1 times [2022-04-18 16:32:10,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:10,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641956035] [2022-04-18 16:32:10,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:10,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:10,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:10,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:10,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641956035] [2022-04-18 16:32:10,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641956035] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:10,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:10,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:10,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809792232] [2022-04-18 16:32:10,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:10,260 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 16:32:10,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:10,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 16:32:10,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 16:32:10,300 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 575 out of 605 [2022-04-18 16:32:10,307 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 558 places, 579 transitions, 1176 flow. Second operand has 2 states, 2 states have (on average 575.5) internal successors, (1151), 2 states have internal predecessors, (1151), 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) [2022-04-18 16:32:10,307 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:10,307 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 575 of 605 [2022-04-18 16:32:10,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:10,482 INFO L129 PetriNetUnfolder]: 9/557 cut-off events. [2022-04-18 16:32:10,483 INFO L130 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-04-18 16:32:10,491 INFO L84 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 557 events. 9/557 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1289 event pairs, 0 based on Foata normal form. 31/514 useless extension candidates. Maximal degree in co-relation 411. Up to 7 conditions per place. [2022-04-18 16:32:10,497 INFO L132 encePairwiseOnDemand]: 583/605 looper letters, 6 selfloop transitions, 0 changer transitions 7/557 dead transitions. [2022-04-18 16:32:10,497 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 559 places, 557 transitions, 1144 flow [2022-04-18 16:32:10,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 16:32:10,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-04-18 16:32:10,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1178 transitions. [2022-04-18 16:32:10,519 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9735537190082645 [2022-04-18 16:32:10,520 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1178 transitions. [2022-04-18 16:32:10,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1178 transitions. [2022-04-18 16:32:10,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:10,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1178 transitions. [2022-04-18 16:32:10,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 589.0) internal successors, (1178), 2 states have internal predecessors, (1178), 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) [2022-04-18 16:32:10,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 605.0) internal successors, (1815), 3 states have internal predecessors, (1815), 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) [2022-04-18 16:32:10,546 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 605.0) internal successors, (1815), 3 states have internal predecessors, (1815), 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) [2022-04-18 16:32:10,548 INFO L186 Difference]: Start difference. First operand has 558 places, 579 transitions, 1176 flow. Second operand 2 states and 1178 transitions. [2022-04-18 16:32:10,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 559 places, 557 transitions, 1144 flow [2022-04-18 16:32:10,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 553 places, 557 transitions, 1132 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-04-18 16:32:10,588 INFO L242 Difference]: Finished difference. Result has 553 places, 550 transitions, 1106 flow [2022-04-18 16:32:10,591 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1120, PETRI_DIFFERENCE_MINUEND_PLACES=552, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=557, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=557, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1106, PETRI_PLACES=553, PETRI_TRANSITIONS=550} [2022-04-18 16:32:10,595 INFO L335 CegarLoopForPetriNet]: 558 programPoint places, -5 predicate places. [2022-04-18 16:32:10,595 INFO L478 AbstractCegarLoop]: Abstraction has has 553 places, 550 transitions, 1106 flow [2022-04-18 16:32:10,596 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 575.5) internal successors, (1151), 2 states have internal predecessors, (1151), 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) [2022-04-18 16:32:10,597 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:10,597 INFO L255 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] [2022-04-18 16:32:10,597 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:32:10,599 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-04-18 16:32:10,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:10,599 INFO L85 PathProgramCache]: Analyzing trace with hash 572341027, now seen corresponding path program 1 times [2022-04-18 16:32:10,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:10,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634672026] [2022-04-18 16:32:10,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:10,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:10,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:10,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:10,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634672026] [2022-04-18 16:32:10,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634672026] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:10,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:10,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:10,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876863392] [2022-04-18 16:32:10,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:10,685 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:10,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:10,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:10,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:10,689 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 605 [2022-04-18 16:32:10,692 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 550 transitions, 1106 flow. Second operand has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 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) [2022-04-18 16:32:10,692 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:10,692 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 605 [2022-04-18 16:32:10,692 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:11,253 INFO L129 PetriNetUnfolder]: 87/1896 cut-off events. [2022-04-18 16:32:11,253 INFO L130 PetriNetUnfolder]: For 11/16 co-relation queries the response was YES. [2022-04-18 16:32:11,276 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2026 conditions, 1896 events. 87/1896 cut-off events. For 11/16 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 12329 event pairs, 39 based on Foata normal form. 0/1608 useless extension candidates. Maximal degree in co-relation 2023. Up to 105 conditions per place. [2022-04-18 16:32:11,289 INFO L132 encePairwiseOnDemand]: 602/605 looper letters, 15 selfloop transitions, 2 changer transitions 0/549 dead transitions. [2022-04-18 16:32:11,290 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 549 transitions, 1138 flow [2022-04-18 16:32:11,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:11,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:11,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1707 transitions. [2022-04-18 16:32:11,295 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9404958677685951 [2022-04-18 16:32:11,295 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1707 transitions. [2022-04-18 16:32:11,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1707 transitions. [2022-04-18 16:32:11,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:11,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1707 transitions. [2022-04-18 16:32:11,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 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) [2022-04-18 16:32:11,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 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) [2022-04-18 16:32:11,305 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 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) [2022-04-18 16:32:11,305 INFO L186 Difference]: Start difference. First operand has 553 places, 550 transitions, 1106 flow. Second operand 3 states and 1707 transitions. [2022-04-18 16:32:11,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 549 transitions, 1138 flow [2022-04-18 16:32:11,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 547 places, 549 transitions, 1138 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:11,315 INFO L242 Difference]: Finished difference. Result has 547 places, 549 transitions, 1108 flow [2022-04-18 16:32:11,316 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1104, PETRI_DIFFERENCE_MINUEND_PLACES=545, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=547, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1108, PETRI_PLACES=547, PETRI_TRANSITIONS=549} [2022-04-18 16:32:11,317 INFO L335 CegarLoopForPetriNet]: 558 programPoint places, -11 predicate places. [2022-04-18 16:32:11,317 INFO L478 AbstractCegarLoop]: Abstraction has has 547 places, 549 transitions, 1108 flow [2022-04-18 16:32:11,319 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 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) [2022-04-18 16:32:11,319 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:11,320 INFO L255 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, 1] [2022-04-18 16:32:11,320 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:32:11,320 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-04-18 16:32:11,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:11,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1184121484, now seen corresponding path program 1 times [2022-04-18 16:32:11,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:11,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669725014] [2022-04-18 16:32:11,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:11,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:11,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:11,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:11,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669725014] [2022-04-18 16:32:11,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669725014] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:11,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:11,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:32:11,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240135151] [2022-04-18 16:32:11,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:11,524 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:32:11,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:11,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:32:11,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:32:11,530 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 470 out of 605 [2022-04-18 16:32:11,533 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 547 places, 549 transitions, 1108 flow. Second operand has 6 states, 6 states have (on average 471.8333333333333) internal successors, (2831), 6 states have internal predecessors, (2831), 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) [2022-04-18 16:32:11,533 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:11,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 470 of 605 [2022-04-18 16:32:11,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:41,455 INFO L129 PetriNetUnfolder]: 49022/197659 cut-off events. [2022-04-18 16:32:41,455 INFO L130 PetriNetUnfolder]: For 349/614 co-relation queries the response was YES. [2022-04-18 16:32:43,000 INFO L84 FinitePrefix]: Finished finitePrefix Result has 261657 conditions, 197659 events. 49022/197659 cut-off events. For 349/614 co-relation queries the response was YES. Maximal size of possible extension queue 3431. Compared 3236318 event pairs, 42984 based on Foata normal form. 0/164410 useless extension candidates. Maximal degree in co-relation 261653. Up to 63795 conditions per place. [2022-04-18 16:32:44,452 INFO L132 encePairwiseOnDemand]: 587/605 looper letters, 93 selfloop transitions, 15 changer transitions 0/546 dead transitions. [2022-04-18 16:32:44,452 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 546 transitions, 1318 flow [2022-04-18 16:32:44,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:32:44,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:32:44,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2931 transitions. [2022-04-18 16:32:44,466 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8074380165289257 [2022-04-18 16:32:44,467 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2931 transitions. [2022-04-18 16:32:44,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2931 transitions. [2022-04-18 16:32:44,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:44,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2931 transitions. [2022-04-18 16:32:44,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 488.5) internal successors, (2931), 6 states have internal predecessors, (2931), 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) [2022-04-18 16:32:44,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 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) [2022-04-18 16:32:44,486 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 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) [2022-04-18 16:32:44,486 INFO L186 Difference]: Start difference. First operand has 547 places, 549 transitions, 1108 flow. Second operand 6 states and 2931 transitions. [2022-04-18 16:32:44,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 546 transitions, 1318 flow [2022-04-18 16:32:44,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 547 places, 546 transitions, 1314 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:44,499 INFO L242 Difference]: Finished difference. Result has 547 places, 546 transitions, 1128 flow [2022-04-18 16:32:44,501 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1098, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=546, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=531, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1128, PETRI_PLACES=547, PETRI_TRANSITIONS=546} [2022-04-18 16:32:44,501 INFO L335 CegarLoopForPetriNet]: 558 programPoint places, -11 predicate places. [2022-04-18 16:32:44,502 INFO L478 AbstractCegarLoop]: Abstraction has has 547 places, 546 transitions, 1128 flow [2022-04-18 16:32:44,504 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 471.8333333333333) internal successors, (2831), 6 states have internal predecessors, (2831), 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) [2022-04-18 16:32:44,504 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:44,504 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:44,504 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:32:44,505 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-04-18 16:32:44,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:44,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1795305295, now seen corresponding path program 1 times [2022-04-18 16:32:44,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:44,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985042200] [2022-04-18 16:32:44,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:44,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:44,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:44,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:44,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985042200] [2022-04-18 16:32:44,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985042200] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:44,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:44,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:44,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855265340] [2022-04-18 16:32:44,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:44,559 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:44,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:44,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:44,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:44,563 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 605 [2022-04-18 16:32:44,566 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 547 places, 546 transitions, 1128 flow. Second operand has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 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) [2022-04-18 16:32:44,566 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:44,566 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 605 [2022-04-18 16:32:44,566 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:44,804 INFO L129 PetriNetUnfolder]: 55/1351 cut-off events. [2022-04-18 16:32:44,804 INFO L130 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-04-18 16:32:44,822 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1452 conditions, 1351 events. 55/1351 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6810 event pairs, 21 based on Foata normal form. 0/1156 useless extension candidates. Maximal degree in co-relation 1448. Up to 72 conditions per place. [2022-04-18 16:32:44,830 INFO L132 encePairwiseOnDemand]: 602/605 looper letters, 15 selfloop transitions, 2 changer transitions 0/545 dead transitions. [2022-04-18 16:32:44,831 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 548 places, 545 transitions, 1160 flow [2022-04-18 16:32:44,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:44,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:44,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1707 transitions. [2022-04-18 16:32:44,835 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9404958677685951 [2022-04-18 16:32:44,835 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1707 transitions. [2022-04-18 16:32:44,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1707 transitions. [2022-04-18 16:32:44,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:44,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1707 transitions. [2022-04-18 16:32:44,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 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) [2022-04-18 16:32:44,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 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) [2022-04-18 16:32:44,846 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 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) [2022-04-18 16:32:44,846 INFO L186 Difference]: Start difference. First operand has 547 places, 546 transitions, 1128 flow. Second operand 3 states and 1707 transitions. [2022-04-18 16:32:44,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 548 places, 545 transitions, 1160 flow [2022-04-18 16:32:44,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 543 places, 545 transitions, 1130 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:32:44,857 INFO L242 Difference]: Finished difference. Result has 543 places, 545 transitions, 1100 flow [2022-04-18 16:32:44,858 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1096, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=543, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1100, PETRI_PLACES=543, PETRI_TRANSITIONS=545} [2022-04-18 16:32:44,859 INFO L335 CegarLoopForPetriNet]: 558 programPoint places, -15 predicate places. [2022-04-18 16:32:44,860 INFO L478 AbstractCegarLoop]: Abstraction has has 543 places, 545 transitions, 1100 flow [2022-04-18 16:32:44,861 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 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) [2022-04-18 16:32:44,861 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:44,861 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:44,861 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:32:44,862 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-04-18 16:32:44,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:44,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1788334183, now seen corresponding path program 1 times [2022-04-18 16:32:44,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:44,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331922802] [2022-04-18 16:32:44,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:44,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:44,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:44,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:44,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331922802] [2022-04-18 16:32:44,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331922802] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:44,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:44,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:44,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151055750] [2022-04-18 16:32:44,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:44,915 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:44,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:44,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:44,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:44,919 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 605 [2022-04-18 16:32:44,921 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 543 places, 545 transitions, 1100 flow. Second operand has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 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) [2022-04-18 16:32:44,921 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:44,921 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 605 [2022-04-18 16:32:44,921 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:45,167 INFO L129 PetriNetUnfolder]: 81/1595 cut-off events. [2022-04-18 16:32:45,168 INFO L130 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-04-18 16:32:45,188 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1713 conditions, 1595 events. 81/1595 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 8840 event pairs, 39 based on Foata normal form. 0/1364 useless extension candidates. Maximal degree in co-relation 1709. Up to 105 conditions per place. [2022-04-18 16:32:45,198 INFO L132 encePairwiseOnDemand]: 602/605 looper letters, 15 selfloop transitions, 2 changer transitions 0/544 dead transitions. [2022-04-18 16:32:45,198 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 544 transitions, 1132 flow [2022-04-18 16:32:45,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:45,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:45,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1707 transitions. [2022-04-18 16:32:45,203 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9404958677685951 [2022-04-18 16:32:45,203 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1707 transitions. [2022-04-18 16:32:45,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1707 transitions. [2022-04-18 16:32:45,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:45,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1707 transitions. [2022-04-18 16:32:45,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 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) [2022-04-18 16:32:45,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 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) [2022-04-18 16:32:45,214 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 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) [2022-04-18 16:32:45,214 INFO L186 Difference]: Start difference. First operand has 543 places, 545 transitions, 1100 flow. Second operand 3 states and 1707 transitions. [2022-04-18 16:32:45,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 544 transitions, 1132 flow [2022-04-18 16:32:45,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 544 transitions, 1128 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:45,224 INFO L242 Difference]: Finished difference. Result has 542 places, 544 transitions, 1098 flow [2022-04-18 16:32:45,226 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1094, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=544, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1098, PETRI_PLACES=542, PETRI_TRANSITIONS=544} [2022-04-18 16:32:45,228 INFO L335 CegarLoopForPetriNet]: 558 programPoint places, -16 predicate places. [2022-04-18 16:32:45,228 INFO L478 AbstractCegarLoop]: Abstraction has has 542 places, 544 transitions, 1098 flow [2022-04-18 16:32:45,230 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 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) [2022-04-18 16:32:45,230 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:45,230 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:45,230 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:32:45,230 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-04-18 16:32:45,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:45,231 INFO L85 PathProgramCache]: Analyzing trace with hash -2038572945, now seen corresponding path program 1 times [2022-04-18 16:32:45,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:45,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805323446] [2022-04-18 16:32:45,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:45,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:45,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:45,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:45,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805323446] [2022-04-18 16:32:45,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805323446] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:45,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:45,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:45,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465404707] [2022-04-18 16:32:45,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:45,297 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:45,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:45,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:45,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:45,300 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 605 [2022-04-18 16:32:45,302 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 544 transitions, 1098 flow. Second operand has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 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) [2022-04-18 16:32:45,302 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:45,302 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 605 [2022-04-18 16:32:45,303 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:45,510 INFO L129 PetriNetUnfolder]: 68/1572 cut-off events. [2022-04-18 16:32:45,510 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-04-18 16:32:45,531 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1685 conditions, 1572 events. 68/1572 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9541 event pairs, 39 based on Foata normal form. 0/1325 useless extension candidates. Maximal degree in co-relation 1681. Up to 85 conditions per place. [2022-04-18 16:32:45,540 INFO L132 encePairwiseOnDemand]: 602/605 looper letters, 15 selfloop transitions, 2 changer transitions 0/543 dead transitions. [2022-04-18 16:32:45,540 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 543 places, 543 transitions, 1130 flow [2022-04-18 16:32:45,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:45,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:45,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1707 transitions. [2022-04-18 16:32:45,544 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9404958677685951 [2022-04-18 16:32:45,545 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1707 transitions. [2022-04-18 16:32:45,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1707 transitions. [2022-04-18 16:32:45,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:45,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1707 transitions. [2022-04-18 16:32:45,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 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) [2022-04-18 16:32:45,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 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) [2022-04-18 16:32:45,553 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 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) [2022-04-18 16:32:45,553 INFO L186 Difference]: Start difference. First operand has 542 places, 544 transitions, 1098 flow. Second operand 3 states and 1707 transitions. [2022-04-18 16:32:45,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 543 places, 543 transitions, 1130 flow [2022-04-18 16:32:45,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 541 places, 543 transitions, 1126 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:45,563 INFO L242 Difference]: Finished difference. Result has 541 places, 543 transitions, 1096 flow [2022-04-18 16:32:45,563 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1092, PETRI_DIFFERENCE_MINUEND_PLACES=539, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=541, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1096, PETRI_PLACES=541, PETRI_TRANSITIONS=543} [2022-04-18 16:32:45,564 INFO L335 CegarLoopForPetriNet]: 558 programPoint places, -17 predicate places. [2022-04-18 16:32:45,564 INFO L478 AbstractCegarLoop]: Abstraction has has 541 places, 543 transitions, 1096 flow [2022-04-18 16:32:45,565 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 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) [2022-04-18 16:32:45,565 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:45,565 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:45,566 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:32:45,566 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-04-18 16:32:45,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:45,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1147075478, now seen corresponding path program 1 times [2022-04-18 16:32:45,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:45,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041012325] [2022-04-18 16:32:45,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:45,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:45,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:45,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:45,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:45,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041012325] [2022-04-18 16:32:45,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041012325] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:45,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:45,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:45,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820460528] [2022-04-18 16:32:45,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:45,605 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:45,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:45,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:45,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:45,608 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 605 [2022-04-18 16:32:45,610 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 543 transitions, 1096 flow. Second operand has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 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) [2022-04-18 16:32:45,610 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:45,610 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 605 [2022-04-18 16:32:45,610 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:45,912 INFO L129 PetriNetUnfolder]: 46/1349 cut-off events. [2022-04-18 16:32:45,912 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-04-18 16:32:45,930 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1423 conditions, 1349 events. 46/1349 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 6999 event pairs, 21 based on Foata normal form. 0/1153 useless extension candidates. Maximal degree in co-relation 1419. Up to 58 conditions per place. [2022-04-18 16:32:45,940 INFO L132 encePairwiseOnDemand]: 602/605 looper letters, 15 selfloop transitions, 2 changer transitions 0/542 dead transitions. [2022-04-18 16:32:45,940 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 542 transitions, 1128 flow [2022-04-18 16:32:45,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:45,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:45,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1707 transitions. [2022-04-18 16:32:45,945 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9404958677685951 [2022-04-18 16:32:45,945 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1707 transitions. [2022-04-18 16:32:45,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1707 transitions. [2022-04-18 16:32:45,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:45,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1707 transitions. [2022-04-18 16:32:45,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 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) [2022-04-18 16:32:45,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 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) [2022-04-18 16:32:45,954 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 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) [2022-04-18 16:32:45,954 INFO L186 Difference]: Start difference. First operand has 541 places, 543 transitions, 1096 flow. Second operand 3 states and 1707 transitions. [2022-04-18 16:32:45,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 542 transitions, 1128 flow [2022-04-18 16:32:45,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 542 transitions, 1124 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:45,964 INFO L242 Difference]: Finished difference. Result has 540 places, 542 transitions, 1094 flow [2022-04-18 16:32:45,965 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1090, PETRI_DIFFERENCE_MINUEND_PLACES=538, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=542, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1094, PETRI_PLACES=540, PETRI_TRANSITIONS=542} [2022-04-18 16:32:45,966 INFO L335 CegarLoopForPetriNet]: 558 programPoint places, -18 predicate places. [2022-04-18 16:32:45,966 INFO L478 AbstractCegarLoop]: Abstraction has has 540 places, 542 transitions, 1094 flow [2022-04-18 16:32:45,967 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 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) [2022-04-18 16:32:45,967 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:45,967 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:45,967 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:32:45,968 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-04-18 16:32:45,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:45,968 INFO L85 PathProgramCache]: Analyzing trace with hash -2039778678, now seen corresponding path program 1 times [2022-04-18 16:32:45,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:45,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291866062] [2022-04-18 16:32:45,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:45,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:46,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:46,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:46,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291866062] [2022-04-18 16:32:46,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291866062] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:46,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:46,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:46,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307040618] [2022-04-18 16:32:46,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:46,012 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:46,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:46,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:46,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:46,016 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 605 [2022-04-18 16:32:46,018 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 542 transitions, 1094 flow. Second operand has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 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) [2022-04-18 16:32:46,018 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:46,018 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 605 [2022-04-18 16:32:46,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:46,329 INFO L129 PetriNetUnfolder]: 70/1583 cut-off events. [2022-04-18 16:32:46,329 INFO L130 PetriNetUnfolder]: For 21/29 co-relation queries the response was YES. [2022-04-18 16:32:46,354 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1681 conditions, 1583 events. 70/1583 cut-off events. For 21/29 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 9229 event pairs, 39 based on Foata normal form. 0/1351 useless extension candidates. Maximal degree in co-relation 1677. Up to 85 conditions per place. [2022-04-18 16:32:46,364 INFO L132 encePairwiseOnDemand]: 602/605 looper letters, 15 selfloop transitions, 2 changer transitions 0/541 dead transitions. [2022-04-18 16:32:46,364 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 541 transitions, 1126 flow [2022-04-18 16:32:46,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:46,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:46,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1707 transitions. [2022-04-18 16:32:46,369 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9404958677685951 [2022-04-18 16:32:46,369 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1707 transitions. [2022-04-18 16:32:46,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1707 transitions. [2022-04-18 16:32:46,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:46,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1707 transitions. [2022-04-18 16:32:46,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 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) [2022-04-18 16:32:46,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 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) [2022-04-18 16:32:46,378 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 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) [2022-04-18 16:32:46,378 INFO L186 Difference]: Start difference. First operand has 540 places, 542 transitions, 1094 flow. Second operand 3 states and 1707 transitions. [2022-04-18 16:32:46,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 541 transitions, 1126 flow [2022-04-18 16:32:46,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 539 places, 541 transitions, 1122 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:46,396 INFO L242 Difference]: Finished difference. Result has 539 places, 541 transitions, 1092 flow [2022-04-18 16:32:46,397 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1088, PETRI_DIFFERENCE_MINUEND_PLACES=537, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1092, PETRI_PLACES=539, PETRI_TRANSITIONS=541} [2022-04-18 16:32:46,400 INFO L335 CegarLoopForPetriNet]: 558 programPoint places, -19 predicate places. [2022-04-18 16:32:46,401 INFO L478 AbstractCegarLoop]: Abstraction has has 539 places, 541 transitions, 1092 flow [2022-04-18 16:32:46,402 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 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) [2022-04-18 16:32:46,402 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:46,402 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:46,402 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:32:46,402 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-04-18 16:32:46,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:46,403 INFO L85 PathProgramCache]: Analyzing trace with hash 204753064, now seen corresponding path program 1 times [2022-04-18 16:32:46,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:46,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399322059] [2022-04-18 16:32:46,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:46,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:46,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:46,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:46,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399322059] [2022-04-18 16:32:46,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399322059] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:46,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:46,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:46,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462981638] [2022-04-18 16:32:46,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:46,451 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:46,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:46,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:46,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:46,454 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 605 [2022-04-18 16:32:46,456 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 541 transitions, 1092 flow. Second operand has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 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) [2022-04-18 16:32:46,456 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:46,456 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 605 [2022-04-18 16:32:46,456 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:46,734 INFO L129 PetriNetUnfolder]: 49/1564 cut-off events. [2022-04-18 16:32:46,734 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-04-18 16:32:46,756 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1631 conditions, 1564 events. 49/1564 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 9564 event pairs, 13 based on Foata normal form. 0/1345 useless extension candidates. Maximal degree in co-relation 1627. Up to 43 conditions per place. [2022-04-18 16:32:46,765 INFO L132 encePairwiseOnDemand]: 601/605 looper letters, 14 selfloop transitions, 2 changer transitions 0/543 dead transitions. [2022-04-18 16:32:46,765 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 543 transitions, 1130 flow [2022-04-18 16:32:46,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:46,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:46,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1716 transitions. [2022-04-18 16:32:46,769 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9454545454545454 [2022-04-18 16:32:46,769 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1716 transitions. [2022-04-18 16:32:46,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1716 transitions. [2022-04-18 16:32:46,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:46,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1716 transitions. [2022-04-18 16:32:46,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 572.0) internal successors, (1716), 3 states have internal predecessors, (1716), 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) [2022-04-18 16:32:46,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 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) [2022-04-18 16:32:46,777 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 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) [2022-04-18 16:32:46,777 INFO L186 Difference]: Start difference. First operand has 539 places, 541 transitions, 1092 flow. Second operand 3 states and 1716 transitions. [2022-04-18 16:32:46,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 539 places, 543 transitions, 1130 flow [2022-04-18 16:32:46,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 537 places, 543 transitions, 1126 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:46,788 INFO L242 Difference]: Finished difference. Result has 538 places, 541 transitions, 1098 flow [2022-04-18 16:32:46,789 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1084, PETRI_DIFFERENCE_MINUEND_PLACES=535, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1098, PETRI_PLACES=538, PETRI_TRANSITIONS=541} [2022-04-18 16:32:46,789 INFO L335 CegarLoopForPetriNet]: 558 programPoint places, -20 predicate places. [2022-04-18 16:32:46,789 INFO L478 AbstractCegarLoop]: Abstraction has has 538 places, 541 transitions, 1098 flow [2022-04-18 16:32:46,790 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 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) [2022-04-18 16:32:46,790 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:46,790 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:46,790 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:32:46,791 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-04-18 16:32:46,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:46,791 INFO L85 PathProgramCache]: Analyzing trace with hash -591521714, now seen corresponding path program 1 times [2022-04-18 16:32:46,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:46,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371016325] [2022-04-18 16:32:46,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:46,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:46,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:46,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:46,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:46,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371016325] [2022-04-18 16:32:46,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371016325] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:46,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:46,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:46,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441768907] [2022-04-18 16:32:46,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:46,830 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:46,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:46,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:46,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:46,834 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 605 [2022-04-18 16:32:46,835 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 538 places, 541 transitions, 1098 flow. Second operand has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 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) [2022-04-18 16:32:46,835 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:46,835 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 605 [2022-04-18 16:32:46,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:47,102 INFO L129 PetriNetUnfolder]: 36/1216 cut-off events. [2022-04-18 16:32:47,103 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-04-18 16:32:47,124 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1269 conditions, 1216 events. 36/1216 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5803 event pairs, 6 based on Foata normal form. 0/1056 useless extension candidates. Maximal degree in co-relation 1265. Up to 31 conditions per place. [2022-04-18 16:32:47,132 INFO L132 encePairwiseOnDemand]: 601/605 looper letters, 14 selfloop transitions, 2 changer transitions 0/543 dead transitions. [2022-04-18 16:32:47,132 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 543 transitions, 1136 flow [2022-04-18 16:32:47,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:47,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:47,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1716 transitions. [2022-04-18 16:32:47,137 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9454545454545454 [2022-04-18 16:32:47,137 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1716 transitions. [2022-04-18 16:32:47,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1716 transitions. [2022-04-18 16:32:47,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:47,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1716 transitions. [2022-04-18 16:32:47,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 572.0) internal successors, (1716), 3 states have internal predecessors, (1716), 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) [2022-04-18 16:32:47,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 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) [2022-04-18 16:32:47,146 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 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) [2022-04-18 16:32:47,146 INFO L186 Difference]: Start difference. First operand has 538 places, 541 transitions, 1098 flow. Second operand 3 states and 1716 transitions. [2022-04-18 16:32:47,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 538 places, 543 transitions, 1136 flow [2022-04-18 16:32:47,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 538 places, 543 transitions, 1136 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:47,156 INFO L242 Difference]: Finished difference. Result has 539 places, 541 transitions, 1108 flow [2022-04-18 16:32:47,157 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1094, PETRI_DIFFERENCE_MINUEND_PLACES=536, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1108, PETRI_PLACES=539, PETRI_TRANSITIONS=541} [2022-04-18 16:32:47,158 INFO L335 CegarLoopForPetriNet]: 558 programPoint places, -19 predicate places. [2022-04-18 16:32:47,158 INFO L478 AbstractCegarLoop]: Abstraction has has 539 places, 541 transitions, 1108 flow [2022-04-18 16:32:47,159 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 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) [2022-04-18 16:32:47,159 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:47,159 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:47,159 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:32:47,160 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-04-18 16:32:47,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:47,160 INFO L85 PathProgramCache]: Analyzing trace with hash 850800039, now seen corresponding path program 1 times [2022-04-18 16:32:47,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:47,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602788983] [2022-04-18 16:32:47,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:47,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:47,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:47,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:47,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602788983] [2022-04-18 16:32:47,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602788983] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:47,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:47,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:47,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825943865] [2022-04-18 16:32:47,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:47,200 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:47,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:47,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:47,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:47,204 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 605 [2022-04-18 16:32:47,205 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 541 transitions, 1108 flow. Second operand has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 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) [2022-04-18 16:32:47,205 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:47,205 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 605 [2022-04-18 16:32:47,206 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:47,428 INFO L129 PetriNetUnfolder]: 55/1142 cut-off events. [2022-04-18 16:32:47,428 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 16:32:47,443 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1285 conditions, 1142 events. 55/1142 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6052 event pairs, 28 based on Foata normal form. 0/1001 useless extension candidates. Maximal degree in co-relation 1280. Up to 80 conditions per place. [2022-04-18 16:32:47,449 INFO L132 encePairwiseOnDemand]: 602/605 looper letters, 25 selfloop transitions, 2 changer transitions 0/542 dead transitions. [2022-04-18 16:32:47,449 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 542 transitions, 1166 flow [2022-04-18 16:32:47,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:47,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:47,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1693 transitions. [2022-04-18 16:32:47,453 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9327823691460055 [2022-04-18 16:32:47,453 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1693 transitions. [2022-04-18 16:32:47,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1693 transitions. [2022-04-18 16:32:47,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:47,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1693 transitions. [2022-04-18 16:32:47,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 564.3333333333334) internal successors, (1693), 3 states have internal predecessors, (1693), 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) [2022-04-18 16:32:47,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 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) [2022-04-18 16:32:47,461 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 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) [2022-04-18 16:32:47,461 INFO L186 Difference]: Start difference. First operand has 539 places, 541 transitions, 1108 flow. Second operand 3 states and 1693 transitions. [2022-04-18 16:32:47,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 540 places, 542 transitions, 1166 flow [2022-04-18 16:32:47,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 542 transitions, 1166 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:47,471 INFO L242 Difference]: Finished difference. Result has 540 places, 540 transitions, 1110 flow [2022-04-18 16:32:47,473 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1106, PETRI_DIFFERENCE_MINUEND_PLACES=538, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=538, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1110, PETRI_PLACES=540, PETRI_TRANSITIONS=540} [2022-04-18 16:32:47,473 INFO L335 CegarLoopForPetriNet]: 558 programPoint places, -18 predicate places. [2022-04-18 16:32:47,473 INFO L478 AbstractCegarLoop]: Abstraction has has 540 places, 540 transitions, 1110 flow [2022-04-18 16:32:47,474 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 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) [2022-04-18 16:32:47,474 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:47,474 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:47,474 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:32:47,475 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-04-18 16:32:47,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:47,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1122024490, now seen corresponding path program 1 times [2022-04-18 16:32:47,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:47,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251470527] [2022-04-18 16:32:47,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:47,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:47,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:47,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:47,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251470527] [2022-04-18 16:32:47,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251470527] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:47,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:47,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:47,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822628176] [2022-04-18 16:32:47,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:47,516 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:47,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:47,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:47,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:47,520 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 605 [2022-04-18 16:32:47,521 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 540 transitions, 1110 flow. Second operand has 3 states, 3 states have (on average 568.0) internal successors, (1704), 3 states have internal predecessors, (1704), 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) [2022-04-18 16:32:47,521 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:47,521 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 605 [2022-04-18 16:32:47,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:47,869 INFO L129 PetriNetUnfolder]: 77/2162 cut-off events. [2022-04-18 16:32:47,870 INFO L130 PetriNetUnfolder]: For 13/17 co-relation queries the response was YES. [2022-04-18 16:32:47,901 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2261 conditions, 2162 events. 77/2162 cut-off events. For 13/17 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 15160 event pairs, 10 based on Foata normal form. 0/1867 useless extension candidates. Maximal degree in co-relation 2255. Up to 66 conditions per place. [2022-04-18 16:32:47,911 INFO L132 encePairwiseOnDemand]: 601/605 looper letters, 14 selfloop transitions, 2 changer transitions 0/542 dead transitions. [2022-04-18 16:32:47,911 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 542 transitions, 1148 flow [2022-04-18 16:32:47,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:47,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:47,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1716 transitions. [2022-04-18 16:32:47,915 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9454545454545454 [2022-04-18 16:32:47,915 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1716 transitions. [2022-04-18 16:32:47,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1716 transitions. [2022-04-18 16:32:47,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:47,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1716 transitions. [2022-04-18 16:32:47,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 572.0) internal successors, (1716), 3 states have internal predecessors, (1716), 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) [2022-04-18 16:32:47,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 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) [2022-04-18 16:32:47,922 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 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) [2022-04-18 16:32:47,922 INFO L186 Difference]: Start difference. First operand has 540 places, 540 transitions, 1110 flow. Second operand 3 states and 1716 transitions. [2022-04-18 16:32:47,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 540 places, 542 transitions, 1148 flow [2022-04-18 16:32:47,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 538 places, 542 transitions, 1144 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:47,931 INFO L242 Difference]: Finished difference. Result has 539 places, 540 transitions, 1116 flow [2022-04-18 16:32:47,932 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1102, PETRI_DIFFERENCE_MINUEND_PLACES=536, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=538, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=536, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1116, PETRI_PLACES=539, PETRI_TRANSITIONS=540} [2022-04-18 16:32:47,933 INFO L335 CegarLoopForPetriNet]: 558 programPoint places, -19 predicate places. [2022-04-18 16:32:47,933 INFO L478 AbstractCegarLoop]: Abstraction has has 539 places, 540 transitions, 1116 flow [2022-04-18 16:32:47,934 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 568.0) internal successors, (1704), 3 states have internal predecessors, (1704), 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) [2022-04-18 16:32:47,934 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:47,934 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:47,934 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:32:47,934 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-04-18 16:32:47,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:47,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1169813112, now seen corresponding path program 1 times [2022-04-18 16:32:47,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:47,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96368453] [2022-04-18 16:32:47,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:47,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:47,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:47,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:47,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:47,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96368453] [2022-04-18 16:32:47,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96368453] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:47,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:47,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:47,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867530737] [2022-04-18 16:32:47,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:47,969 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:47,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:47,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:47,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:47,972 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 605 [2022-04-18 16:32:47,974 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 540 transitions, 1116 flow. Second operand has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 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) [2022-04-18 16:32:47,974 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:47,974 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 605 [2022-04-18 16:32:47,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:48,328 INFO L129 PetriNetUnfolder]: 77/1975 cut-off events. [2022-04-18 16:32:48,328 INFO L130 PetriNetUnfolder]: For 11/15 co-relation queries the response was YES. [2022-04-18 16:32:48,357 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2099 conditions, 1975 events. 77/1975 cut-off events. For 11/15 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 13061 event pairs, 4 based on Foata normal form. 1/1713 useless extension candidates. Maximal degree in co-relation 2093. Up to 69 conditions per place. [2022-04-18 16:32:48,368 INFO L132 encePairwiseOnDemand]: 601/605 looper letters, 17 selfloop transitions, 2 changer transitions 0/545 dead transitions. [2022-04-18 16:32:48,368 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 545 transitions, 1169 flow [2022-04-18 16:32:48,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:48,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:48,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1719 transitions. [2022-04-18 16:32:48,373 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.947107438016529 [2022-04-18 16:32:48,373 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1719 transitions. [2022-04-18 16:32:48,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1719 transitions. [2022-04-18 16:32:48,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:48,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1719 transitions. [2022-04-18 16:32:48,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 573.0) internal successors, (1719), 3 states have internal predecessors, (1719), 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) [2022-04-18 16:32:48,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 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) [2022-04-18 16:32:48,380 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 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) [2022-04-18 16:32:48,380 INFO L186 Difference]: Start difference. First operand has 539 places, 540 transitions, 1116 flow. Second operand 3 states and 1719 transitions. [2022-04-18 16:32:48,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 539 places, 545 transitions, 1169 flow [2022-04-18 16:32:48,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 539 places, 545 transitions, 1169 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:48,389 INFO L242 Difference]: Finished difference. Result has 540 places, 540 transitions, 1126 flow [2022-04-18 16:32:48,390 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1112, PETRI_DIFFERENCE_MINUEND_PLACES=537, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=538, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=536, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1126, PETRI_PLACES=540, PETRI_TRANSITIONS=540} [2022-04-18 16:32:48,391 INFO L335 CegarLoopForPetriNet]: 558 programPoint places, -18 predicate places. [2022-04-18 16:32:48,391 INFO L478 AbstractCegarLoop]: Abstraction has has 540 places, 540 transitions, 1126 flow [2022-04-18 16:32:48,392 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 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) [2022-04-18 16:32:48,392 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:48,392 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:48,392 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:32:48,392 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-04-18 16:32:48,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:48,393 INFO L85 PathProgramCache]: Analyzing trace with hash 478593456, now seen corresponding path program 1 times [2022-04-18 16:32:48,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:48,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816121947] [2022-04-18 16:32:48,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:48,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:48,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:48,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:48,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816121947] [2022-04-18 16:32:48,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816121947] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:48,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:48,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:32:48,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031027077] [2022-04-18 16:32:48,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:48,449 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 16:32:48,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:48,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 16:32:48,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-18 16:32:48,452 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 521 out of 605 [2022-04-18 16:32:48,454 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 540 transitions, 1126 flow. Second operand has 5 states, 5 states have (on average 526.4) internal successors, (2632), 5 states have internal predecessors, (2632), 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) [2022-04-18 16:32:48,454 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:48,454 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 521 of 605 [2022-04-18 16:32:48,455 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:48,752 INFO L129 PetriNetUnfolder]: 33/1214 cut-off events. [2022-04-18 16:32:48,752 INFO L130 PetriNetUnfolder]: For 8/14 co-relation queries the response was YES. [2022-04-18 16:32:48,777 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1352 conditions, 1214 events. 33/1214 cut-off events. For 8/14 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5671 event pairs, 0 based on Foata normal form. 0/1066 useless extension candidates. Maximal degree in co-relation 1345. Up to 58 conditions per place. [2022-04-18 16:32:48,784 INFO L132 encePairwiseOnDemand]: 590/605 looper letters, 72 selfloop transitions, 12 changer transitions 0/567 dead transitions. [2022-04-18 16:32:48,785 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 567 transitions, 1348 flow [2022-04-18 16:32:48,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 16:32:48,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 16:32:48,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2692 transitions. [2022-04-18 16:32:48,789 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8899173553719009 [2022-04-18 16:32:48,790 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2692 transitions. [2022-04-18 16:32:48,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2692 transitions. [2022-04-18 16:32:48,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:48,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2692 transitions. [2022-04-18 16:32:48,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 538.4) internal successors, (2692), 5 states have internal predecessors, (2692), 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) [2022-04-18 16:32:48,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 605.0) internal successors, (3630), 6 states have internal predecessors, (3630), 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) [2022-04-18 16:32:48,800 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 605.0) internal successors, (3630), 6 states have internal predecessors, (3630), 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) [2022-04-18 16:32:48,800 INFO L186 Difference]: Start difference. First operand has 540 places, 540 transitions, 1126 flow. Second operand 5 states and 2692 transitions. [2022-04-18 16:32:48,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 567 transitions, 1348 flow [2022-04-18 16:32:48,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 567 transitions, 1348 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:48,810 INFO L242 Difference]: Finished difference. Result has 545 places, 543 transitions, 1174 flow [2022-04-18 16:32:48,811 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1126, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1174, PETRI_PLACES=545, PETRI_TRANSITIONS=543} [2022-04-18 16:32:48,811 INFO L335 CegarLoopForPetriNet]: 558 programPoint places, -13 predicate places. [2022-04-18 16:32:48,811 INFO L478 AbstractCegarLoop]: Abstraction has has 545 places, 543 transitions, 1174 flow [2022-04-18 16:32:48,812 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 526.4) internal successors, (2632), 5 states have internal predecessors, (2632), 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) [2022-04-18 16:32:48,812 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:48,812 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:48,813 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 16:32:48,813 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-04-18 16:32:48,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:48,813 INFO L85 PathProgramCache]: Analyzing trace with hash -174908470, now seen corresponding path program 1 times [2022-04-18 16:32:48,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:48,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681587008] [2022-04-18 16:32:48,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:48,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:48,912 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 16:32:48,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:48,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681587008] [2022-04-18 16:32:48,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681587008] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 16:32:48,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115030865] [2022-04-18 16:32:48,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:48,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 16:32:48,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:32:48,919 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 16:32:48,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-18 16:32:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:49,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 6 conjunts are in the unsatisfiable core [2022-04-18 16:32:49,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 16:32:49,527 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 16:32:49,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 16:32:49,916 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 16:32:49,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115030865] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 16:32:49,917 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-18 16:32:49,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-04-18 16:32:49,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196879963] [2022-04-18 16:32:49,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-18 16:32:49,921 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 16:32:49,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:49,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 16:32:49,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-04-18 16:32:49,929 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 518 out of 605 [2022-04-18 16:32:49,936 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 543 transitions, 1174 flow. Second operand has 15 states, 15 states have (on average 523.8) internal successors, (7857), 15 states have internal predecessors, (7857), 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) [2022-04-18 16:32:49,936 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:49,936 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 518 of 605 [2022-04-18 16:32:49,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:50,461 INFO L129 PetriNetUnfolder]: 33/1262 cut-off events. [2022-04-18 16:32:50,461 INFO L130 PetriNetUnfolder]: For 20/26 co-relation queries the response was YES. [2022-04-18 16:32:50,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1465 conditions, 1262 events. 33/1262 cut-off events. For 20/26 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5602 event pairs, 0 based on Foata normal form. 6/1123 useless extension candidates. Maximal degree in co-relation 1456. Up to 34 conditions per place. [2022-04-18 16:32:50,487 INFO L132 encePairwiseOnDemand]: 581/605 looper letters, 90 selfloop transitions, 33 changer transitions 0/603 dead transitions. [2022-04-18 16:32:50,487 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 555 places, 603 transitions, 1546 flow [2022-04-18 16:32:50,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-18 16:32:50,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-04-18 16:32:50,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 5827 transitions. [2022-04-18 16:32:50,498 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8755822689706987 [2022-04-18 16:32:50,498 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 5827 transitions. [2022-04-18 16:32:50,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 5827 transitions. [2022-04-18 16:32:50,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:50,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 5827 transitions. [2022-04-18 16:32:50,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 529.7272727272727) internal successors, (5827), 11 states have internal predecessors, (5827), 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) [2022-04-18 16:32:50,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 605.0) internal successors, (7260), 12 states have internal predecessors, (7260), 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) [2022-04-18 16:32:50,523 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 605.0) internal successors, (7260), 12 states have internal predecessors, (7260), 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) [2022-04-18 16:32:50,523 INFO L186 Difference]: Start difference. First operand has 545 places, 543 transitions, 1174 flow. Second operand 11 states and 5827 transitions. [2022-04-18 16:32:50,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 555 places, 603 transitions, 1546 flow [2022-04-18 16:32:50,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 552 places, 603 transitions, 1528 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-04-18 16:32:50,535 INFO L242 Difference]: Finished difference. Result has 555 places, 561 transitions, 1323 flow [2022-04-18 16:32:50,536 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=1156, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=519, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1323, PETRI_PLACES=555, PETRI_TRANSITIONS=561} [2022-04-18 16:32:50,536 INFO L335 CegarLoopForPetriNet]: 558 programPoint places, -3 predicate places. [2022-04-18 16:32:50,536 INFO L478 AbstractCegarLoop]: Abstraction has has 555 places, 561 transitions, 1323 flow [2022-04-18 16:32:50,538 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 523.8) internal successors, (7857), 15 states have internal predecessors, (7857), 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) [2022-04-18 16:32:50,538 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:50,539 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:50,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-18 16:32:50,752 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-04-18 16:32:50,752 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2022-04-18 16:32:50,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:50,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1276707330, now seen corresponding path program 2 times [2022-04-18 16:32:50,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:50,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250753074] [2022-04-18 16:32:50,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:50,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:50,899 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-04-18 16:32:50,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:50,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250753074] [2022-04-18 16:32:50,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250753074] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 16:32:50,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946324482] [2022-04-18 16:32:50,900 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-18 16:32:50,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 16:32:50,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:32:50,901 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 16:32:50,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-18 16:32:51,055 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-04-18 16:32:51,055 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-18 16:32:51,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 19 conjunts are in the unsatisfiable core [2022-04-18 16:32:51,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 16:32:51,590 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-04-18 16:32:51,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 16:32:51,620 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-04-18 16:32:51,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 16:32:51,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 16:32:51,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 16:32:51,652 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-18 16:32:51,652 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-04-18 16:32:51,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 16:32:51,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 16:32:51,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 16:32:51,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 16:32:51,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 16:32:51,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 16:32:51,689 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-18 16:32:51,689 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-04-18 16:32:51,713 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-04-18 16:32:51,713 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 16:32:51,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946324482] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:51,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-18 16:32:51,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 16 [2022-04-18 16:32:51,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073921011] [2022-04-18 16:32:51,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:51,714 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-18 16:32:51,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:51,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-18 16:32:51,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-04-18 16:32:51,718 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 497 out of 605 [2022-04-18 16:32:51,721 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 555 places, 561 transitions, 1323 flow. Second operand has 7 states, 7 states have (on average 500.85714285714283) internal successors, (3506), 7 states have internal predecessors, (3506), 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) [2022-04-18 16:32:51,721 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:51,721 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 497 of 605 [2022-04-18 16:32:51,721 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand