./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy10.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/test-easy10.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 5b38e7cb0150abfd3f300ad6ccdd66bb35d80de0668e553c35b4b9d13b84c85b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:36:36,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:36:36,578 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:36:36,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:36:36,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:36:36,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:36:36,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:36:36,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:36:36,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:36:36,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:36:36,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:36:36,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:36:36,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:36:36,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:36:36,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:36:36,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:36:36,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:36:36,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:36:36,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:36:36,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:36:36,628 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:36:36,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:36:36,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:36:36,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:36:36,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:36:36,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:36:36,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:36:36,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:36:36,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:36:36,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:36:36,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:36:36,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:36:36,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:36:36,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:36:36,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:36:36,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:36:36,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:36:36,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:36:36,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:36:36,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:36:36,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:36:36,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:36:36,643 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:36:36,668 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:36:36,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:36:36,670 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:36:36,670 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:36:36,671 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:36:36,671 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:36:36,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:36:36,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:36:36,672 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:36:36,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:36:36,673 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:36:36,673 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:36:36,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:36:36,673 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:36:36,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:36:36,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:36:36,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:36:36,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:36:36,674 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:36:36,674 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:36:36,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:36:36,674 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:36:36,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:36:36,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:36:36,675 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:36:36,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:36:36,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:36:36,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:36:36,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:36:36,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:36:36,676 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:36:36,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:36:36,676 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:36:36,676 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:36:36,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:36:36,677 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b38e7cb0150abfd3f300ad6ccdd66bb35d80de0668e553c35b4b9d13b84c85b [2022-04-18 16:36:36,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:36:36,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:36:36,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:36:36,937 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:36:36,938 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:36:36,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy10.wvr.c [2022-04-18 16:36:37,001 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d36022f8/cdd4f71842c84ba6ab6aefcf854ba615/FLAG75ac90b8a [2022-04-18 16:36:37,379 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:36:37,381 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy10.wvr.c [2022-04-18 16:36:37,388 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d36022f8/cdd4f71842c84ba6ab6aefcf854ba615/FLAG75ac90b8a [2022-04-18 16:36:37,817 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d36022f8/cdd4f71842c84ba6ab6aefcf854ba615 [2022-04-18 16:36:37,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:36:37,820 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:36:37,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:36:37,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:36:37,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:36:37,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:36:37" (1/1) ... [2022-04-18 16:36:37,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18c4623d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:37, skipping insertion in model container [2022-04-18 16:36:37,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:36:37" (1/1) ... [2022-04-18 16:36:37,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:36:37,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:36:38,216 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/test-easy10.wvr.c[3907,3920] [2022-04-18 16:36:38,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:36:38,227 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:36:38,271 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/test-easy10.wvr.c[3907,3920] [2022-04-18 16:36:38,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:36:38,281 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:36:38,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:38 WrapperNode [2022-04-18 16:36:38,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:36:38,282 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:36:38,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:36:38,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:36:38,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:38" (1/1) ... [2022-04-18 16:36:38,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:38" (1/1) ... [2022-04-18 16:36:38,325 INFO L137 Inliner]: procedures = 23, calls = 84, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 392 [2022-04-18 16:36:38,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:36:38,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:36:38,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:36:38,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:36:38,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:38" (1/1) ... [2022-04-18 16:36:38,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:38" (1/1) ... [2022-04-18 16:36:38,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:38" (1/1) ... [2022-04-18 16:36:38,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:38" (1/1) ... [2022-04-18 16:36:38,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:38" (1/1) ... [2022-04-18 16:36:38,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:38" (1/1) ... [2022-04-18 16:36:38,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:38" (1/1) ... [2022-04-18 16:36:38,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:36:38,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:36:38,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:36:38,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:36:38,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:38" (1/1) ... [2022-04-18 16:36:38,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:36:38,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:36:38,389 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 16:36:38,403 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 16:36:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:36:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:36:38,435 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:36:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:36:38,435 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:36:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:36:38,435 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:36:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-04-18 16:36:38,435 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-04-18 16:36:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:36:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:36:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:36:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 16:36:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 16:36:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:36:38,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:36:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:36:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:36:38,437 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 16:36:38,525 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:36:38,527 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:36:38,935 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:36:39,061 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:36:39,061 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 16:36:39,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:39 BoogieIcfgContainer [2022-04-18 16:36:39,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:36:39,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:36:39,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:36:39,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:36:39,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:36:37" (1/3) ... [2022-04-18 16:36:39,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cdd1004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:36:39, skipping insertion in model container [2022-04-18 16:36:39,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:38" (2/3) ... [2022-04-18 16:36:39,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cdd1004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:36:39, skipping insertion in model container [2022-04-18 16:36:39,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:39" (3/3) ... [2022-04-18 16:36:39,069 INFO L111 eAbstractionObserver]: Analyzing ICFG test-easy10.wvr.c [2022-04-18 16:36:39,072 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:36:39,072 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:36:39,073 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2022-04-18 16:36:39,073 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:36:39,124 INFO L135 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-04-18 16:36:39,153 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:36:39,157 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 16:36:39,158 INFO L341 AbstractCegarLoop]: Starting to check reachability of 108 error locations. [2022-04-18 16:36:39,170 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 268 places, 259 transitions, 550 flow [2022-04-18 16:36:39,249 INFO L129 PetriNetUnfolder]: 4/255 cut-off events. [2022-04-18 16:36:39,249 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-04-18 16:36:39,253 INFO L84 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 255 events. 4/255 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 309 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 165. Up to 2 conditions per place. [2022-04-18 16:36:39,254 INFO L82 GeneralOperation]: Start removeDead. Operand has 268 places, 259 transitions, 550 flow [2022-04-18 16:36:39,260 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 241 places, 230 transitions, 484 flow [2022-04-18 16:36:39,270 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2022-04-18 16:36:39,271 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:36:39,271 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:39,272 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] [2022-04-18 16:36:39,272 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-04-18 16:36:39,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:39,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1433708834, now seen corresponding path program 1 times [2022-04-18 16:36:39,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:39,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315108644] [2022-04-18 16:36:39,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:39,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:39,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:39,442 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 16:36:39,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:39,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315108644] [2022-04-18 16:36:39,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315108644] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:39,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:39,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:39,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785876974] [2022-04-18 16:36:39,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:39,451 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:39,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:39,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:39,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:39,478 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 259 [2022-04-18 16:36:39,482 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 230 transitions, 484 flow. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 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 16:36:39,482 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:39,483 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 259 [2022-04-18 16:36:39,483 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:41,119 INFO L129 PetriNetUnfolder]: 7777/12184 cut-off events. [2022-04-18 16:36:41,120 INFO L130 PetriNetUnfolder]: For 2065/2530 co-relation queries the response was YES. [2022-04-18 16:36:41,149 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24377 conditions, 12184 events. 7777/12184 cut-off events. For 2065/2530 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 77783 event pairs, 7776 based on Foata normal form. 1/12077 useless extension candidates. Maximal degree in co-relation 23828. Up to 10986 conditions per place. [2022-04-18 16:36:41,267 INFO L132 encePairwiseOnDemand]: 211/259 looper letters, 41 selfloop transitions, 2 changer transitions 1/184 dead transitions. [2022-04-18 16:36:41,268 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 184 transitions, 478 flow [2022-04-18 16:36:41,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:41,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:41,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 593 transitions. [2022-04-18 16:36:41,282 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7631917631917632 [2022-04-18 16:36:41,295 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 593 transitions. [2022-04-18 16:36:41,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 593 transitions. [2022-04-18 16:36:41,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:41,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 593 transitions. [2022-04-18 16:36:41,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 197.66666666666666) internal successors, (593), 3 states have internal predecessors, (593), 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 16:36:41,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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 16:36:41,312 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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 16:36:41,314 INFO L186 Difference]: Start difference. First operand has 241 places, 230 transitions, 484 flow. Second operand 3 states and 593 transitions. [2022-04-18 16:36:41,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 184 transitions, 478 flow [2022-04-18 16:36:41,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 184 transitions, 462 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-04-18 16:36:41,344 INFO L242 Difference]: Finished difference. Result has 190 places, 183 transitions, 378 flow [2022-04-18 16:36:41,346 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=190, PETRI_TRANSITIONS=183} [2022-04-18 16:36:41,348 INFO L335 CegarLoopForPetriNet]: 241 programPoint places, -51 predicate places. [2022-04-18 16:36:41,349 INFO L478 AbstractCegarLoop]: Abstraction has has 190 places, 183 transitions, 378 flow [2022-04-18 16:36:41,350 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 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 16:36:41,350 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:41,350 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] [2022-04-18 16:36:41,350 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:36:41,350 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-04-18 16:36:41,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:41,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1348131188, now seen corresponding path program 1 times [2022-04-18 16:36:41,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:41,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37349883] [2022-04-18 16:36:41,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:41,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:41,422 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 16:36:41,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:41,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37349883] [2022-04-18 16:36:41,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37349883] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:41,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:41,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:41,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538348917] [2022-04-18 16:36:41,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:41,424 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:41,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:41,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:41,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:41,426 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 259 [2022-04-18 16:36:41,426 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 183 transitions, 378 flow. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 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 16:36:41,439 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:41,439 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 259 [2022-04-18 16:36:41,439 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:42,810 INFO L129 PetriNetUnfolder]: 7777/12182 cut-off events. [2022-04-18 16:36:42,810 INFO L130 PetriNetUnfolder]: For 400/865 co-relation queries the response was YES. [2022-04-18 16:36:42,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23574 conditions, 12182 events. 7777/12182 cut-off events. For 400/865 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 77525 event pairs, 7776 based on Foata normal form. 0/12076 useless extension candidates. Maximal degree in co-relation 23534. Up to 10986 conditions per place. [2022-04-18 16:36:42,872 INFO L132 encePairwiseOnDemand]: 256/259 looper letters, 41 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2022-04-18 16:36:42,873 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 182 transitions, 462 flow [2022-04-18 16:36:42,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:42,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:42,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 548 transitions. [2022-04-18 16:36:42,879 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7052767052767053 [2022-04-18 16:36:42,879 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 548 transitions. [2022-04-18 16:36:42,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 548 transitions. [2022-04-18 16:36:42,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:42,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 548 transitions. [2022-04-18 16:36:42,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 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 16:36:42,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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 16:36:42,883 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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 16:36:42,883 INFO L186 Difference]: Start difference. First operand has 190 places, 183 transitions, 378 flow. Second operand 3 states and 548 transitions. [2022-04-18 16:36:42,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 182 transitions, 462 flow [2022-04-18 16:36:42,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 182 transitions, 458 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:42,889 INFO L242 Difference]: Finished difference. Result has 188 places, 182 transitions, 376 flow [2022-04-18 16:36:42,889 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=188, PETRI_TRANSITIONS=182} [2022-04-18 16:36:42,890 INFO L335 CegarLoopForPetriNet]: 241 programPoint places, -53 predicate places. [2022-04-18 16:36:42,890 INFO L478 AbstractCegarLoop]: Abstraction has has 188 places, 182 transitions, 376 flow [2022-04-18 16:36:42,891 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 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 16:36:42,891 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:42,891 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] [2022-04-18 16:36:42,891 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:36:42,891 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-04-18 16:36:42,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:42,892 INFO L85 PathProgramCache]: Analyzing trace with hash -586291789, now seen corresponding path program 1 times [2022-04-18 16:36:42,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:42,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703286427] [2022-04-18 16:36:42,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:42,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:42,921 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 16:36:42,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:42,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703286427] [2022-04-18 16:36:42,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703286427] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:42,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:42,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:42,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939975440] [2022-04-18 16:36:42,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:42,922 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:42,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:42,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:42,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:42,924 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 259 [2022-04-18 16:36:42,924 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 182 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 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 16:36:42,924 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:42,924 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 259 [2022-04-18 16:36:42,925 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:44,010 INFO L129 PetriNetUnfolder]: 7777/12181 cut-off events. [2022-04-18 16:36:44,010 INFO L130 PetriNetUnfolder]: For 400/865 co-relation queries the response was YES. [2022-04-18 16:36:44,034 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23573 conditions, 12181 events. 7777/12181 cut-off events. For 400/865 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 77490 event pairs, 7776 based on Foata normal form. 0/12076 useless extension candidates. Maximal degree in co-relation 23527. Up to 10986 conditions per place. [2022-04-18 16:36:44,079 INFO L132 encePairwiseOnDemand]: 256/259 looper letters, 41 selfloop transitions, 2 changer transitions 0/181 dead transitions. [2022-04-18 16:36:44,079 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 181 transitions, 460 flow [2022-04-18 16:36:44,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:44,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:44,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 548 transitions. [2022-04-18 16:36:44,081 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7052767052767053 [2022-04-18 16:36:44,081 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 548 transitions. [2022-04-18 16:36:44,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 548 transitions. [2022-04-18 16:36:44,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:44,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 548 transitions. [2022-04-18 16:36:44,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 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 16:36:44,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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 16:36:44,085 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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 16:36:44,085 INFO L186 Difference]: Start difference. First operand has 188 places, 182 transitions, 376 flow. Second operand 3 states and 548 transitions. [2022-04-18 16:36:44,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 181 transitions, 460 flow [2022-04-18 16:36:44,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 181 transitions, 456 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:44,087 INFO L242 Difference]: Finished difference. Result has 187 places, 181 transitions, 374 flow [2022-04-18 16:36:44,088 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=187, PETRI_TRANSITIONS=181} [2022-04-18 16:36:44,088 INFO L335 CegarLoopForPetriNet]: 241 programPoint places, -54 predicate places. [2022-04-18 16:36:44,089 INFO L478 AbstractCegarLoop]: Abstraction has has 187 places, 181 transitions, 374 flow [2022-04-18 16:36:44,089 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 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 16:36:44,089 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:44,089 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] [2022-04-18 16:36:44,090 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:36:44,090 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-04-18 16:36:44,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:44,090 INFO L85 PathProgramCache]: Analyzing trace with hash 2111228194, now seen corresponding path program 1 times [2022-04-18 16:36:44,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:44,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604516314] [2022-04-18 16:36:44,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:44,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:44,128 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 16:36:44,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:44,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604516314] [2022-04-18 16:36:44,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604516314] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:44,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:44,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:44,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969444299] [2022-04-18 16:36:44,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:44,130 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:44,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:44,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:44,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:44,131 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 259 [2022-04-18 16:36:44,132 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 181 transitions, 374 flow. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 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 16:36:44,132 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:44,132 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 259 [2022-04-18 16:36:44,132 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:45,268 INFO L129 PetriNetUnfolder]: 7777/12180 cut-off events. [2022-04-18 16:36:45,268 INFO L130 PetriNetUnfolder]: For 400/865 co-relation queries the response was YES. [2022-04-18 16:36:45,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23571 conditions, 12180 events. 7777/12180 cut-off events. For 400/865 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 77418 event pairs, 7776 based on Foata normal form. 0/12076 useless extension candidates. Maximal degree in co-relation 23519. Up to 10985 conditions per place. [2022-04-18 16:36:45,332 INFO L132 encePairwiseOnDemand]: 256/259 looper letters, 40 selfloop transitions, 2 changer transitions 0/180 dead transitions. [2022-04-18 16:36:45,332 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 180 transitions, 456 flow [2022-04-18 16:36:45,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:45,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:45,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 547 transitions. [2022-04-18 16:36:45,336 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.703989703989704 [2022-04-18 16:36:45,337 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 547 transitions. [2022-04-18 16:36:45,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 547 transitions. [2022-04-18 16:36:45,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:45,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 547 transitions. [2022-04-18 16:36:45,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 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 16:36:45,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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 16:36:45,340 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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 16:36:45,340 INFO L186 Difference]: Start difference. First operand has 187 places, 181 transitions, 374 flow. Second operand 3 states and 547 transitions. [2022-04-18 16:36:45,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 180 transitions, 456 flow [2022-04-18 16:36:45,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 180 transitions, 452 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:45,346 INFO L242 Difference]: Finished difference. Result has 186 places, 180 transitions, 372 flow [2022-04-18 16:36:45,346 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=372, PETRI_PLACES=186, PETRI_TRANSITIONS=180} [2022-04-18 16:36:45,347 INFO L335 CegarLoopForPetriNet]: 241 programPoint places, -55 predicate places. [2022-04-18 16:36:45,348 INFO L478 AbstractCegarLoop]: Abstraction has has 186 places, 180 transitions, 372 flow [2022-04-18 16:36:45,348 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 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 16:36:45,348 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:45,349 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 16:36:45,349 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:36:45,349 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-04-18 16:36:45,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:45,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1227986709, now seen corresponding path program 1 times [2022-04-18 16:36:45,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:45,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470883283] [2022-04-18 16:36:45,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:45,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:45,392 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 16:36:45,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:45,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470883283] [2022-04-18 16:36:45,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470883283] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:45,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:45,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:45,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085298621] [2022-04-18 16:36:45,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:45,393 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:45,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:45,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:45,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:45,395 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 259 [2022-04-18 16:36:45,395 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 180 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 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 16:36:45,395 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:45,395 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 259 [2022-04-18 16:36:45,395 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:46,608 INFO L129 PetriNetUnfolder]: 8726/17152 cut-off events. [2022-04-18 16:36:46,609 INFO L130 PetriNetUnfolder]: For 449/979 co-relation queries the response was YES. [2022-04-18 16:36:46,638 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29927 conditions, 17152 events. 8726/17152 cut-off events. For 449/979 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 144690 event pairs, 2355 based on Foata normal form. 1/16672 useless extension candidates. Maximal degree in co-relation 29868. Up to 8887 conditions per place. [2022-04-18 16:36:46,693 INFO L132 encePairwiseOnDemand]: 251/259 looper letters, 60 selfloop transitions, 6 changer transitions 0/206 dead transitions. [2022-04-18 16:36:46,693 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 206 transitions, 560 flow [2022-04-18 16:36:46,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:46,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:46,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 581 transitions. [2022-04-18 16:36:46,695 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7477477477477478 [2022-04-18 16:36:46,695 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 581 transitions. [2022-04-18 16:36:46,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 581 transitions. [2022-04-18 16:36:46,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:46,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 581 transitions. [2022-04-18 16:36:46,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 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 16:36:46,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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 16:36:46,698 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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 16:36:46,699 INFO L186 Difference]: Start difference. First operand has 186 places, 180 transitions, 372 flow. Second operand 3 states and 581 transitions. [2022-04-18 16:36:46,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 206 transitions, 560 flow [2022-04-18 16:36:46,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 206 transitions, 556 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:46,701 INFO L242 Difference]: Finished difference. Result has 186 places, 182 transitions, 404 flow [2022-04-18 16:36:46,702 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=404, PETRI_PLACES=186, PETRI_TRANSITIONS=182} [2022-04-18 16:36:46,704 INFO L335 CegarLoopForPetriNet]: 241 programPoint places, -55 predicate places. [2022-04-18 16:36:46,704 INFO L478 AbstractCegarLoop]: Abstraction has has 186 places, 182 transitions, 404 flow [2022-04-18 16:36:46,705 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 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 16:36:46,705 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:46,705 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] [2022-04-18 16:36:46,706 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:36:46,706 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-04-18 16:36:46,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:46,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1020804430, now seen corresponding path program 1 times [2022-04-18 16:36:46,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:46,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290719481] [2022-04-18 16:36:46,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:46,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:46,756 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 16:36:46,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:46,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290719481] [2022-04-18 16:36:46,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290719481] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:46,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:46,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:46,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505158493] [2022-04-18 16:36:46,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:46,758 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:46,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:46,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:46,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:46,759 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 259 [2022-04-18 16:36:46,760 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 182 transitions, 404 flow. Second operand has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 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 16:36:46,760 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:46,760 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 259 [2022-04-18 16:36:46,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:47,889 INFO L129 PetriNetUnfolder]: 9643/15666 cut-off events. [2022-04-18 16:36:47,889 INFO L130 PetriNetUnfolder]: For 5401/6014 co-relation queries the response was YES. [2022-04-18 16:36:47,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33426 conditions, 15666 events. 9643/15666 cut-off events. For 5401/6014 co-relation queries the response was YES. Maximal size of possible extension queue 647. Compared 111855 event pairs, 2672 based on Foata normal form. 1/15537 useless extension candidates. Maximal degree in co-relation 25108. Up to 9459 conditions per place. [2022-04-18 16:36:47,986 INFO L132 encePairwiseOnDemand]: 251/259 looper letters, 68 selfloop transitions, 6 changer transitions 0/212 dead transitions. [2022-04-18 16:36:47,986 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 212 transitions, 640 flow [2022-04-18 16:36:47,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:47,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:47,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 581 transitions. [2022-04-18 16:36:47,988 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7477477477477478 [2022-04-18 16:36:47,988 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 581 transitions. [2022-04-18 16:36:47,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 581 transitions. [2022-04-18 16:36:47,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:47,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 581 transitions. [2022-04-18 16:36:47,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 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 16:36:47,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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 16:36:47,991 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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 16:36:47,991 INFO L186 Difference]: Start difference. First operand has 186 places, 182 transitions, 404 flow. Second operand 3 states and 581 transitions. [2022-04-18 16:36:47,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 212 transitions, 640 flow [2022-04-18 16:36:47,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 212 transitions, 620 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:47,998 INFO L242 Difference]: Finished difference. Result has 186 places, 184 transitions, 428 flow [2022-04-18 16:36:47,998 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=428, PETRI_PLACES=186, PETRI_TRANSITIONS=184} [2022-04-18 16:36:47,999 INFO L335 CegarLoopForPetriNet]: 241 programPoint places, -55 predicate places. [2022-04-18 16:36:47,999 INFO L478 AbstractCegarLoop]: Abstraction has has 186 places, 184 transitions, 428 flow [2022-04-18 16:36:47,999 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 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 16:36:48,000 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:48,000 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] [2022-04-18 16:36:48,000 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:36:48,000 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-04-18 16:36:48,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:48,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1920273930, now seen corresponding path program 1 times [2022-04-18 16:36:48,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:48,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518757093] [2022-04-18 16:36:48,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:48,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:48,029 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 16:36:48,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:48,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518757093] [2022-04-18 16:36:48,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518757093] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:48,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:48,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:48,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752198181] [2022-04-18 16:36:48,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:48,031 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:48,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:48,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:48,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:48,037 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 259 [2022-04-18 16:36:48,037 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 184 transitions, 428 flow. Second operand has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 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 16:36:48,037 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:48,037 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 259 [2022-04-18 16:36:48,038 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:49,591 INFO L129 PetriNetUnfolder]: 11552/17767 cut-off events. [2022-04-18 16:36:49,591 INFO L130 PetriNetUnfolder]: For 5951/6569 co-relation queries the response was YES. [2022-04-18 16:36:49,633 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41477 conditions, 17767 events. 11552/17767 cut-off events. For 5951/6569 co-relation queries the response was YES. Maximal size of possible extension queue 687. Compared 118744 event pairs, 7587 based on Foata normal form. 0/17611 useless extension candidates. Maximal degree in co-relation 29056. Up to 11873 conditions per place. [2022-04-18 16:36:49,702 INFO L132 encePairwiseOnDemand]: 251/259 looper letters, 74 selfloop transitions, 6 changer transitions 0/216 dead transitions. [2022-04-18 16:36:49,702 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 216 transitions, 691 flow [2022-04-18 16:36:49,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:49,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:49,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 582 transitions. [2022-04-18 16:36:49,711 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.749034749034749 [2022-04-18 16:36:49,711 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 582 transitions. [2022-04-18 16:36:49,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 582 transitions. [2022-04-18 16:36:49,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:49,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 582 transitions. [2022-04-18 16:36:49,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 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 16:36:49,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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 16:36:49,724 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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 16:36:49,724 INFO L186 Difference]: Start difference. First operand has 186 places, 184 transitions, 428 flow. Second operand 3 states and 582 transitions. [2022-04-18 16:36:49,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 216 transitions, 691 flow [2022-04-18 16:36:49,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 216 transitions, 671 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:49,778 INFO L242 Difference]: Finished difference. Result has 186 places, 186 transitions, 452 flow [2022-04-18 16:36:49,780 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=452, PETRI_PLACES=186, PETRI_TRANSITIONS=186} [2022-04-18 16:36:49,780 INFO L335 CegarLoopForPetriNet]: 241 programPoint places, -55 predicate places. [2022-04-18 16:36:49,780 INFO L478 AbstractCegarLoop]: Abstraction has has 186 places, 186 transitions, 452 flow [2022-04-18 16:36:49,788 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 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 16:36:49,788 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:49,788 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] [2022-04-18 16:36:49,788 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:36:49,788 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-04-18 16:36:49,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:49,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1452662967, now seen corresponding path program 1 times [2022-04-18 16:36:49,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:49,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705953905] [2022-04-18 16:36:49,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:49,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:49,837 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 16:36:49,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:49,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705953905] [2022-04-18 16:36:49,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705953905] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:49,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:49,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:49,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203883641] [2022-04-18 16:36:49,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:49,839 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:49,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:49,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:49,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:49,840 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 259 [2022-04-18 16:36:49,841 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 186 transitions, 452 flow. Second operand has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 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 16:36:49,841 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:49,841 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 259 [2022-04-18 16:36:49,841 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:51,679 INFO L129 PetriNetUnfolder]: 14384/22411 cut-off events. [2022-04-18 16:36:51,679 INFO L130 PetriNetUnfolder]: For 12739/13656 co-relation queries the response was YES. [2022-04-18 16:36:51,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55600 conditions, 22411 events. 14384/22411 cut-off events. For 12739/13656 co-relation queries the response was YES. Maximal size of possible extension queue 900. Compared 158812 event pairs, 8832 based on Foata normal form. 2/22177 useless extension candidates. Maximal degree in co-relation 34932. Up to 13727 conditions per place. [2022-04-18 16:36:51,885 INFO L132 encePairwiseOnDemand]: 251/259 looper letters, 82 selfloop transitions, 5 changer transitions 11/224 dead transitions. [2022-04-18 16:36:51,889 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 224 transitions, 763 flow [2022-04-18 16:36:51,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:51,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:51,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 583 transitions. [2022-04-18 16:36:51,905 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7503217503217503 [2022-04-18 16:36:51,905 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 583 transitions. [2022-04-18 16:36:51,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 583 transitions. [2022-04-18 16:36:51,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:51,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 583 transitions. [2022-04-18 16:36:51,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 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 16:36:51,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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 16:36:51,908 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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 16:36:51,908 INFO L186 Difference]: Start difference. First operand has 186 places, 186 transitions, 452 flow. Second operand 3 states and 583 transitions. [2022-04-18 16:36:51,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 224 transitions, 763 flow [2022-04-18 16:36:51,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 224 transitions, 743 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:51,919 INFO L242 Difference]: Finished difference. Result has 186 places, 177 transitions, 443 flow [2022-04-18 16:36:51,919 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=443, PETRI_PLACES=186, PETRI_TRANSITIONS=177} [2022-04-18 16:36:51,921 INFO L335 CegarLoopForPetriNet]: 241 programPoint places, -55 predicate places. [2022-04-18 16:36:51,921 INFO L478 AbstractCegarLoop]: Abstraction has has 186 places, 177 transitions, 443 flow [2022-04-18 16:36:51,921 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 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 16:36:51,921 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:51,922 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] [2022-04-18 16:36:51,922 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:36:51,922 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-04-18 16:36:51,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:51,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1662277585, now seen corresponding path program 1 times [2022-04-18 16:36:51,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:51,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10928053] [2022-04-18 16:36:51,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:51,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:51,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:52,109 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 16:36:52,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:52,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10928053] [2022-04-18 16:36:52,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10928053] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:52,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:52,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:52,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841545629] [2022-04-18 16:36:52,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:52,111 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:52,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:52,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:52,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:52,112 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 259 [2022-04-18 16:36:52,113 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 177 transitions, 443 flow. Second operand has 6 states, 6 states have (on average 152.16666666666666) internal successors, (913), 6 states have internal predecessors, (913), 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 16:36:52,113 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:52,113 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 259 [2022-04-18 16:36:52,113 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:03,077 INFO L129 PetriNetUnfolder]: 113528/153991 cut-off events. [2022-04-18 16:37:03,078 INFO L130 PetriNetUnfolder]: For 102187/102187 co-relation queries the response was YES. [2022-04-18 16:37:03,400 INFO L84 FinitePrefix]: Finished finitePrefix Result has 401623 conditions, 153991 events. 113528/153991 cut-off events. For 102187/102187 co-relation queries the response was YES. Maximal size of possible extension queue 3676. Compared 975680 event pairs, 22252 based on Foata normal form. 0/153140 useless extension candidates. Maximal degree in co-relation 138723. Up to 54723 conditions per place. [2022-04-18 16:37:04,103 INFO L132 encePairwiseOnDemand]: 254/259 looper letters, 229 selfloop transitions, 4 changer transitions 1/336 dead transitions. [2022-04-18 16:37:04,103 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 336 transitions, 1517 flow [2022-04-18 16:37:04,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:37:04,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:37:04,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1055 transitions. [2022-04-18 16:37:04,106 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6788931788931789 [2022-04-18 16:37:04,106 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1055 transitions. [2022-04-18 16:37:04,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1055 transitions. [2022-04-18 16:37:04,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:04,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1055 transitions. [2022-04-18 16:37:04,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 175.83333333333334) internal successors, (1055), 6 states have internal predecessors, (1055), 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 16:37:04,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 259.0) internal successors, (1813), 7 states have internal predecessors, (1813), 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 16:37:04,110 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 259.0) internal successors, (1813), 7 states have internal predecessors, (1813), 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 16:37:04,110 INFO L186 Difference]: Start difference. First operand has 186 places, 177 transitions, 443 flow. Second operand 6 states and 1055 transitions. [2022-04-18 16:37:04,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 336 transitions, 1517 flow [2022-04-18 16:37:04,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 336 transitions, 1475 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:04,144 INFO L242 Difference]: Finished difference. Result has 177 places, 175 transitions, 437 flow [2022-04-18 16:37:04,145 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=437, PETRI_PLACES=177, PETRI_TRANSITIONS=175} [2022-04-18 16:37:04,145 INFO L335 CegarLoopForPetriNet]: 241 programPoint places, -64 predicate places. [2022-04-18 16:37:04,145 INFO L478 AbstractCegarLoop]: Abstraction has has 177 places, 175 transitions, 437 flow [2022-04-18 16:37:04,146 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.16666666666666) internal successors, (913), 6 states have internal predecessors, (913), 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 16:37:04,146 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:04,146 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] [2022-04-18 16:37:04,146 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:37:04,146 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-04-18 16:37:04,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:04,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1489536421, now seen corresponding path program 1 times [2022-04-18 16:37:04,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:04,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975786293] [2022-04-18 16:37:04,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:04,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:04,236 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 16:37:04,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:04,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975786293] [2022-04-18 16:37:04,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975786293] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:04,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:04,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:37:04,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163522417] [2022-04-18 16:37:04,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:04,238 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:37:04,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:04,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:37:04,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:37:04,240 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 259 [2022-04-18 16:37:04,240 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 175 transitions, 437 flow. Second operand has 6 states, 6 states have (on average 154.16666666666666) internal successors, (925), 6 states have internal predecessors, (925), 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 16:37:04,240 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:04,240 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 259 [2022-04-18 16:37:04,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand