./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.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/parallel-parallel-sum-1-dsl.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 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:34:26,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:34:26,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:34:26,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:34:26,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:34:26,609 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:34:26,610 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:34:26,612 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:34:26,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:34:26,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:34:26,617 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:34:26,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:34:26,619 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:34:26,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:34:26,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:34:26,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:34:26,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:34:26,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:34:26,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:34:26,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:34:26,634 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:34:26,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:34:26,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:34:26,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:34:26,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:34:26,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:34:26,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:34:26,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:34:26,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:34:26,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:34:26,645 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:34:26,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:34:26,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:34:26,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:34:26,648 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:34:26,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:34:26,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:34:26,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:34:26,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:34:26,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:34:26,650 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:34:26,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:34:26,653 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:34:26,680 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:34:26,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:34:26,681 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:34:26,681 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:34:26,681 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:34:26,681 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:34:26,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:34:26,682 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:34:26,682 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:34:26,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:34:26,683 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:34:26,683 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:34:26,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:34:26,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:34:26,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:34:26,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:34:26,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:34:26,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:34:26,684 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:34:26,685 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:34:26,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:34:26,685 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:34:26,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:34:26,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:34:26,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:34:26,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:34:26,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:34:26,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:34:26,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:34:26,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:34:26,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:34:26,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:34:26,687 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:34:26,687 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:34:26,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:34:26,688 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 [2022-04-18 16:34:26,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:34:26,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:34:26,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:34:26,910 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:34:26,910 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:34:26,911 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-04-18 16:34:26,967 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d2c577a8/945b8c1ed68e4c39802449307ce6b7a6/FLAGa57c5c5a3 [2022-04-18 16:34:27,345 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:34:27,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-04-18 16:34:27,354 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d2c577a8/945b8c1ed68e4c39802449307ce6b7a6/FLAGa57c5c5a3 [2022-04-18 16:34:27,363 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d2c577a8/945b8c1ed68e4c39802449307ce6b7a6 [2022-04-18 16:34:27,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:34:27,366 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:34:27,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:34:27,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:34:27,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:34:27,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:34:27" (1/1) ... [2022-04-18 16:34:27,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@294094dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:27, skipping insertion in model container [2022-04-18 16:34:27,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:34:27" (1/1) ... [2022-04-18 16:34:27,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:34:27,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:34:27,532 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/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-04-18 16:34:27,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:34:27,543 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:34:27,570 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/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-04-18 16:34:27,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:34:27,583 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:34:27,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:27 WrapperNode [2022-04-18 16:34:27,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:34:27,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:34:27,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:34:27,585 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:34:27,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:27" (1/1) ... [2022-04-18 16:34:27,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:27" (1/1) ... [2022-04-18 16:34:27,628 INFO L137 Inliner]: procedures = 29, calls = 95, calls flagged for inlining = 21, calls inlined = 27, statements flattened = 494 [2022-04-18 16:34:27,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:34:27,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:34:27,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:34:27,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:34:27,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:27" (1/1) ... [2022-04-18 16:34:27,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:27" (1/1) ... [2022-04-18 16:34:27,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:27" (1/1) ... [2022-04-18 16:34:27,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:27" (1/1) ... [2022-04-18 16:34:27,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:27" (1/1) ... [2022-04-18 16:34:27,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:27" (1/1) ... [2022-04-18 16:34:27,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:27" (1/1) ... [2022-04-18 16:34:27,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:34:27,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:34:27,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:34:27,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:34:27,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:27" (1/1) ... [2022-04-18 16:34:27,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:34:27,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:34:27,712 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 16:34:27,719 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 16:34:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:34:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:34:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:34:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:34:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:34:27,739 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:34:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:34:27,739 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:34:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:34:27,739 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:34:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-04-18 16:34:27,739 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-04-18 16:34:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:34:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-04-18 16:34:27,740 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-04-18 16:34:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-04-18 16:34:27,740 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-04-18 16:34:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 16:34:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 16:34:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 16:34:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:34:27,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:34:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:34:27,742 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 16:34:27,822 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:34:27,823 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:34:28,520 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:34:28,738 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:34:28,738 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-04-18 16:34:28,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:34:28 BoogieIcfgContainer [2022-04-18 16:34:28,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:34:28,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:34:28,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:34:28,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:34:28,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:34:27" (1/3) ... [2022-04-18 16:34:28,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@633b9aae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:34:28, skipping insertion in model container [2022-04-18 16:34:28,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:27" (2/3) ... [2022-04-18 16:34:28,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@633b9aae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:34:28, skipping insertion in model container [2022-04-18 16:34:28,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:34:28" (3/3) ... [2022-04-18 16:34:28,750 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2022-04-18 16:34:28,755 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:34:28,755 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:34:28,755 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 77 error locations. [2022-04-18 16:34:28,756 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:34:28,867 INFO L135 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-04-18 16:34:28,900 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:34:28,905 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 16:34:28,905 INFO L341 AbstractCegarLoop]: Starting to check reachability of 147 error locations. [2022-04-18 16:34:28,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 434 places, 433 transitions, 938 flow [2022-04-18 16:34:29,050 INFO L129 PetriNetUnfolder]: 18/393 cut-off events. [2022-04-18 16:34:29,051 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-04-18 16:34:29,059 INFO L84 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 393 events. 18/393 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 803 event pairs, 0 based on Foata normal form. 0/298 useless extension candidates. Maximal degree in co-relation 331. Up to 3 conditions per place. [2022-04-18 16:34:29,060 INFO L82 GeneralOperation]: Start removeDead. Operand has 434 places, 433 transitions, 938 flow [2022-04-18 16:34:29,073 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 377 places, 375 transitions, 798 flow [2022-04-18 16:34:29,077 INFO L129 PetriNetUnfolder]: 0/29 cut-off events. [2022-04-18 16:34:29,077 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:34:29,077 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:29,078 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] [2022-04-18 16:34:29,078 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-04-18 16:34:29,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:29,084 INFO L85 PathProgramCache]: Analyzing trace with hash -171364854, now seen corresponding path program 1 times [2022-04-18 16:34:29,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:29,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830731452] [2022-04-18 16:34:29,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:29,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:29,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:29,276 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 16:34:29,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:29,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830731452] [2022-04-18 16:34:29,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830731452] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:29,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:29,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:29,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443577416] [2022-04-18 16:34:29,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:29,286 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:29,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:29,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:29,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:29,308 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 437 [2022-04-18 16:34:29,312 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 375 transitions, 798 flow. Second operand has 3 states, 3 states have (on average 322.3333333333333) internal successors, (967), 3 states have internal predecessors, (967), 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 16:34:29,312 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:29,312 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 437 [2022-04-18 16:34:29,313 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:29,944 INFO L129 PetriNetUnfolder]: 1084/3018 cut-off events. [2022-04-18 16:34:29,945 INFO L130 PetriNetUnfolder]: For 695/1051 co-relation queries the response was YES. [2022-04-18 16:34:29,956 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5146 conditions, 3018 events. 1084/3018 cut-off events. For 695/1051 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 19772 event pairs, 627 based on Foata normal form. 308/2966 useless extension candidates. Maximal degree in co-relation 4721. Up to 1454 conditions per place. [2022-04-18 16:34:29,976 INFO L132 encePairwiseOnDemand]: 370/437 looper letters, 39 selfloop transitions, 2 changer transitions 3/310 dead transitions. [2022-04-18 16:34:29,976 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 310 transitions, 750 flow [2022-04-18 16:34:29,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:29,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:29,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1069 transitions. [2022-04-18 16:34:29,988 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8154080854309688 [2022-04-18 16:34:29,989 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1069 transitions. [2022-04-18 16:34:29,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1069 transitions. [2022-04-18 16:34:29,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:29,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1069 transitions. [2022-04-18 16:34:29,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 16:34:30,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 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 16:34:30,003 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 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 16:34:30,005 INFO L186 Difference]: Start difference. First operand has 377 places, 375 transitions, 798 flow. Second operand 3 states and 1069 transitions. [2022-04-18 16:34:30,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 310 transitions, 750 flow [2022-04-18 16:34:30,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 310 transitions, 718 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-04-18 16:34:30,016 INFO L242 Difference]: Finished difference. Result has 310 places, 307 transitions, 634 flow [2022-04-18 16:34:30,018 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=634, PETRI_PLACES=310, PETRI_TRANSITIONS=307} [2022-04-18 16:34:30,021 INFO L335 CegarLoopForPetriNet]: 377 programPoint places, -67 predicate places. [2022-04-18 16:34:30,022 INFO L478 AbstractCegarLoop]: Abstraction has has 310 places, 307 transitions, 634 flow [2022-04-18 16:34:30,022 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 322.3333333333333) internal successors, (967), 3 states have internal predecessors, (967), 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 16:34:30,022 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:30,023 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] [2022-04-18 16:34:30,023 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:34:30,023 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-04-18 16:34:30,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:30,024 INFO L85 PathProgramCache]: Analyzing trace with hash -391755992, now seen corresponding path program 1 times [2022-04-18 16:34:30,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:30,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977351345] [2022-04-18 16:34:30,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:30,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:30,054 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 16:34:30,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:30,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977351345] [2022-04-18 16:34:30,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977351345] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:30,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:30,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:30,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664178089] [2022-04-18 16:34:30,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:30,056 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:30,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:30,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:30,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:30,058 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 437 [2022-04-18 16:34:30,059 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 307 transitions, 634 flow. Second operand has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 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 16:34:30,059 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:30,059 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 437 [2022-04-18 16:34:30,059 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:30,569 INFO L129 PetriNetUnfolder]: 1084/3014 cut-off events. [2022-04-18 16:34:30,569 INFO L130 PetriNetUnfolder]: For 171/527 co-relation queries the response was YES. [2022-04-18 16:34:30,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4642 conditions, 3014 events. 1084/3014 cut-off events. For 171/527 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 19760 event pairs, 627 based on Foata normal form. 0/2658 useless extension candidates. Maximal degree in co-relation 4605. Up to 1451 conditions per place. [2022-04-18 16:34:30,606 INFO L132 encePairwiseOnDemand]: 434/437 looper letters, 36 selfloop transitions, 2 changer transitions 0/306 dead transitions. [2022-04-18 16:34:30,607 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 306 transitions, 708 flow [2022-04-18 16:34:30,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:30,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:30,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1011 transitions. [2022-04-18 16:34:30,609 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7711670480549199 [2022-04-18 16:34:30,609 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1011 transitions. [2022-04-18 16:34:30,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1011 transitions. [2022-04-18 16:34:30,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:30,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1011 transitions. [2022-04-18 16:34:30,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 337.0) internal successors, (1011), 3 states have internal predecessors, (1011), 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 16:34:30,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 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 16:34:30,614 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 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 16:34:30,614 INFO L186 Difference]: Start difference. First operand has 310 places, 307 transitions, 634 flow. Second operand 3 states and 1011 transitions. [2022-04-18 16:34:30,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 306 transitions, 708 flow [2022-04-18 16:34:30,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 306 transitions, 704 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:30,619 INFO L242 Difference]: Finished difference. Result has 306 places, 306 transitions, 632 flow [2022-04-18 16:34:30,620 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=632, PETRI_PLACES=306, PETRI_TRANSITIONS=306} [2022-04-18 16:34:30,621 INFO L335 CegarLoopForPetriNet]: 377 programPoint places, -71 predicate places. [2022-04-18 16:34:30,621 INFO L478 AbstractCegarLoop]: Abstraction has has 306 places, 306 transitions, 632 flow [2022-04-18 16:34:30,621 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 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 16:34:30,622 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:30,622 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] [2022-04-18 16:34:30,622 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:34:30,622 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-04-18 16:34:30,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:30,623 INFO L85 PathProgramCache]: Analyzing trace with hash 2068387316, now seen corresponding path program 1 times [2022-04-18 16:34:30,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:30,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138724151] [2022-04-18 16:34:30,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:30,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:30,662 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 16:34:30,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:30,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138724151] [2022-04-18 16:34:30,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138724151] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:30,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:30,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:30,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013826318] [2022-04-18 16:34:30,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:30,663 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:30,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:30,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:30,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:30,665 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 437 [2022-04-18 16:34:30,666 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 306 transitions, 632 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 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 16:34:30,666 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:30,666 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 437 [2022-04-18 16:34:30,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:31,124 INFO L129 PetriNetUnfolder]: 1084/3013 cut-off events. [2022-04-18 16:34:31,125 INFO L130 PetriNetUnfolder]: For 171/527 co-relation queries the response was YES. [2022-04-18 16:34:31,137 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4638 conditions, 3013 events. 1084/3013 cut-off events. For 171/527 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 19791 event pairs, 627 based on Foata normal form. 0/2658 useless extension candidates. Maximal degree in co-relation 4594. Up to 1448 conditions per place. [2022-04-18 16:34:31,154 INFO L132 encePairwiseOnDemand]: 434/437 looper letters, 33 selfloop transitions, 2 changer transitions 0/305 dead transitions. [2022-04-18 16:34:31,154 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 305 transitions, 700 flow [2022-04-18 16:34:31,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:31,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:31,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1017 transitions. [2022-04-18 16:34:31,157 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7757437070938215 [2022-04-18 16:34:31,157 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1017 transitions. [2022-04-18 16:34:31,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1017 transitions. [2022-04-18 16:34:31,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:31,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1017 transitions. [2022-04-18 16:34:31,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 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 16:34:31,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 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 16:34:31,162 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 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 16:34:31,162 INFO L186 Difference]: Start difference. First operand has 306 places, 306 transitions, 632 flow. Second operand 3 states and 1017 transitions. [2022-04-18 16:34:31,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 305 transitions, 700 flow [2022-04-18 16:34:31,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 305 transitions, 696 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:31,166 INFO L242 Difference]: Finished difference. Result has 305 places, 305 transitions, 630 flow [2022-04-18 16:34:31,167 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=630, PETRI_PLACES=305, PETRI_TRANSITIONS=305} [2022-04-18 16:34:31,167 INFO L335 CegarLoopForPetriNet]: 377 programPoint places, -72 predicate places. [2022-04-18 16:34:31,168 INFO L478 AbstractCegarLoop]: Abstraction has has 305 places, 305 transitions, 630 flow [2022-04-18 16:34:31,168 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 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 16:34:31,168 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:31,169 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 16:34:31,169 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:34:31,169 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-04-18 16:34:31,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:31,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1864584977, now seen corresponding path program 1 times [2022-04-18 16:34:31,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:31,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023886564] [2022-04-18 16:34:31,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:31,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:31,246 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 16:34:31,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:31,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023886564] [2022-04-18 16:34:31,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023886564] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:31,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:31,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:31,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279631541] [2022-04-18 16:34:31,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:31,249 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:31,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:31,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:31,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:31,255 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 437 [2022-04-18 16:34:31,256 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 305 transitions, 630 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 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 16:34:31,256 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:31,256 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 437 [2022-04-18 16:34:31,257 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:31,773 INFO L129 PetriNetUnfolder]: 1084/3012 cut-off events. [2022-04-18 16:34:31,774 INFO L130 PetriNetUnfolder]: For 171/527 co-relation queries the response was YES. [2022-04-18 16:34:31,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4637 conditions, 3012 events. 1084/3012 cut-off events. For 171/527 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 19788 event pairs, 627 based on Foata normal form. 0/2658 useless extension candidates. Maximal degree in co-relation 4586. Up to 1448 conditions per place. [2022-04-18 16:34:31,804 INFO L132 encePairwiseOnDemand]: 434/437 looper letters, 33 selfloop transitions, 2 changer transitions 0/304 dead transitions. [2022-04-18 16:34:31,804 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 304 transitions, 698 flow [2022-04-18 16:34:31,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:31,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:31,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1017 transitions. [2022-04-18 16:34:31,808 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7757437070938215 [2022-04-18 16:34:31,808 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1017 transitions. [2022-04-18 16:34:31,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1017 transitions. [2022-04-18 16:34:31,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:31,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1017 transitions. [2022-04-18 16:34:31,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 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 16:34:31,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 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 16:34:31,817 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 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 16:34:31,817 INFO L186 Difference]: Start difference. First operand has 305 places, 305 transitions, 630 flow. Second operand 3 states and 1017 transitions. [2022-04-18 16:34:31,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 304 transitions, 698 flow [2022-04-18 16:34:31,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 304 transitions, 694 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:31,822 INFO L242 Difference]: Finished difference. Result has 304 places, 304 transitions, 628 flow [2022-04-18 16:34:31,822 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=628, PETRI_PLACES=304, PETRI_TRANSITIONS=304} [2022-04-18 16:34:31,823 INFO L335 CegarLoopForPetriNet]: 377 programPoint places, -73 predicate places. [2022-04-18 16:34:31,824 INFO L478 AbstractCegarLoop]: Abstraction has has 304 places, 304 transitions, 628 flow [2022-04-18 16:34:31,824 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 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 16:34:31,825 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:31,825 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] [2022-04-18 16:34:31,825 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:34:31,825 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-04-18 16:34:31,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:31,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1874259606, now seen corresponding path program 1 times [2022-04-18 16:34:31,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:31,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766894626] [2022-04-18 16:34:31,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:31,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:31,879 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 16:34:31,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:31,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766894626] [2022-04-18 16:34:31,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766894626] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:31,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:31,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:31,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052684170] [2022-04-18 16:34:31,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:31,881 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:31,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:31,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:31,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:31,882 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 437 [2022-04-18 16:34:31,884 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 304 transitions, 628 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 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 16:34:31,884 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:31,884 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 437 [2022-04-18 16:34:31,884 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:32,366 INFO L129 PetriNetUnfolder]: 1084/3011 cut-off events. [2022-04-18 16:34:32,367 INFO L130 PetriNetUnfolder]: For 171/527 co-relation queries the response was YES. [2022-04-18 16:34:32,375 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4636 conditions, 3011 events. 1084/3011 cut-off events. For 171/527 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 19782 event pairs, 627 based on Foata normal form. 0/2658 useless extension candidates. Maximal degree in co-relation 4578. Up to 1448 conditions per place. [2022-04-18 16:34:32,388 INFO L132 encePairwiseOnDemand]: 434/437 looper letters, 33 selfloop transitions, 2 changer transitions 0/303 dead transitions. [2022-04-18 16:34:32,388 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 303 transitions, 696 flow [2022-04-18 16:34:32,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:32,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:32,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1017 transitions. [2022-04-18 16:34:32,391 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7757437070938215 [2022-04-18 16:34:32,391 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1017 transitions. [2022-04-18 16:34:32,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1017 transitions. [2022-04-18 16:34:32,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:32,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1017 transitions. [2022-04-18 16:34:32,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 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 16:34:32,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 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 16:34:32,396 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 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 16:34:32,396 INFO L186 Difference]: Start difference. First operand has 304 places, 304 transitions, 628 flow. Second operand 3 states and 1017 transitions. [2022-04-18 16:34:32,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 303 transitions, 696 flow [2022-04-18 16:34:32,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 303 transitions, 692 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:32,401 INFO L242 Difference]: Finished difference. Result has 303 places, 303 transitions, 626 flow [2022-04-18 16:34:32,402 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=622, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=626, PETRI_PLACES=303, PETRI_TRANSITIONS=303} [2022-04-18 16:34:32,404 INFO L335 CegarLoopForPetriNet]: 377 programPoint places, -74 predicate places. [2022-04-18 16:34:32,404 INFO L478 AbstractCegarLoop]: Abstraction has has 303 places, 303 transitions, 626 flow [2022-04-18 16:34:32,405 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 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 16:34:32,405 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:32,406 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] [2022-04-18 16:34:32,406 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:34:32,406 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-04-18 16:34:32,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:32,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1721828031, now seen corresponding path program 1 times [2022-04-18 16:34:32,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:32,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027643022] [2022-04-18 16:34:32,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:32,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:32,460 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 16:34:32,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:32,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027643022] [2022-04-18 16:34:32,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027643022] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:32,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:32,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:32,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960878911] [2022-04-18 16:34:32,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:32,463 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:32,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:32,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:32,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:32,466 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 437 [2022-04-18 16:34:32,466 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 303 transitions, 626 flow. Second operand has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 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 16:34:32,467 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:32,467 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 437 [2022-04-18 16:34:32,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:32,908 INFO L129 PetriNetUnfolder]: 1084/3010 cut-off events. [2022-04-18 16:34:32,908 INFO L130 PetriNetUnfolder]: For 171/527 co-relation queries the response was YES. [2022-04-18 16:34:32,920 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4637 conditions, 3010 events. 1084/3010 cut-off events. For 171/527 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 19751 event pairs, 627 based on Foata normal form. 0/2658 useless extension candidates. Maximal degree in co-relation 4572. Up to 1450 conditions per place. [2022-04-18 16:34:32,937 INFO L132 encePairwiseOnDemand]: 434/437 looper letters, 35 selfloop transitions, 2 changer transitions 0/302 dead transitions. [2022-04-18 16:34:32,937 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 302 transitions, 698 flow [2022-04-18 16:34:32,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:32,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:32,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1010 transitions. [2022-04-18 16:34:32,940 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7704042715484363 [2022-04-18 16:34:32,940 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1010 transitions. [2022-04-18 16:34:32,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1010 transitions. [2022-04-18 16:34:32,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:32,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1010 transitions. [2022-04-18 16:34:32,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 336.6666666666667) internal successors, (1010), 3 states have internal predecessors, (1010), 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 16:34:32,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 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 16:34:32,945 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 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 16:34:32,945 INFO L186 Difference]: Start difference. First operand has 303 places, 303 transitions, 626 flow. Second operand 3 states and 1010 transitions. [2022-04-18 16:34:32,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 302 transitions, 698 flow [2022-04-18 16:34:32,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 302 transitions, 694 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:32,949 INFO L242 Difference]: Finished difference. Result has 302 places, 302 transitions, 624 flow [2022-04-18 16:34:32,950 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=624, PETRI_PLACES=302, PETRI_TRANSITIONS=302} [2022-04-18 16:34:32,950 INFO L335 CegarLoopForPetriNet]: 377 programPoint places, -75 predicate places. [2022-04-18 16:34:32,951 INFO L478 AbstractCegarLoop]: Abstraction has has 302 places, 302 transitions, 624 flow [2022-04-18 16:34:32,951 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 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 16:34:32,951 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:32,952 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] [2022-04-18 16:34:32,952 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:34:32,952 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-04-18 16:34:32,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:32,952 INFO L85 PathProgramCache]: Analyzing trace with hash 278129398, now seen corresponding path program 1 times [2022-04-18 16:34:32,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:32,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905948338] [2022-04-18 16:34:32,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:32,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:32,993 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 16:34:32,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:32,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905948338] [2022-04-18 16:34:32,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905948338] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:32,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:32,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:32,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892394306] [2022-04-18 16:34:32,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:32,995 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:32,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:32,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:32,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:32,997 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 437 [2022-04-18 16:34:32,998 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 302 transitions, 624 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 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 16:34:32,998 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:32,998 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 437 [2022-04-18 16:34:32,998 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:33,488 INFO L129 PetriNetUnfolder]: 1084/3009 cut-off events. [2022-04-18 16:34:33,488 INFO L130 PetriNetUnfolder]: For 171/527 co-relation queries the response was YES. [2022-04-18 16:34:33,498 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4634 conditions, 3009 events. 1084/3009 cut-off events. For 171/527 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 19754 event pairs, 627 based on Foata normal form. 0/2658 useless extension candidates. Maximal degree in co-relation 4562. Up to 1448 conditions per place. [2022-04-18 16:34:33,512 INFO L132 encePairwiseOnDemand]: 434/437 looper letters, 33 selfloop transitions, 2 changer transitions 0/301 dead transitions. [2022-04-18 16:34:33,512 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 301 transitions, 692 flow [2022-04-18 16:34:33,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:33,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:33,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1017 transitions. [2022-04-18 16:34:33,515 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7757437070938215 [2022-04-18 16:34:33,515 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1017 transitions. [2022-04-18 16:34:33,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1017 transitions. [2022-04-18 16:34:33,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:33,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1017 transitions. [2022-04-18 16:34:33,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 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 16:34:33,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 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 16:34:33,519 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 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 16:34:33,519 INFO L186 Difference]: Start difference. First operand has 302 places, 302 transitions, 624 flow. Second operand 3 states and 1017 transitions. [2022-04-18 16:34:33,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 301 transitions, 692 flow [2022-04-18 16:34:33,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 301 transitions, 688 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:33,524 INFO L242 Difference]: Finished difference. Result has 301 places, 301 transitions, 622 flow [2022-04-18 16:34:33,524 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=622, PETRI_PLACES=301, PETRI_TRANSITIONS=301} [2022-04-18 16:34:33,525 INFO L335 CegarLoopForPetriNet]: 377 programPoint places, -76 predicate places. [2022-04-18 16:34:33,525 INFO L478 AbstractCegarLoop]: Abstraction has has 301 places, 301 transitions, 622 flow [2022-04-18 16:34:33,525 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 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 16:34:33,525 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:33,526 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] [2022-04-18 16:34:33,526 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:34:33,526 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-04-18 16:34:33,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:33,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1876043237, now seen corresponding path program 1 times [2022-04-18 16:34:33,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:33,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574300035] [2022-04-18 16:34:33,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:33,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:33,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:33,548 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 16:34:33,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:33,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574300035] [2022-04-18 16:34:33,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574300035] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:33,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:33,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:33,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367210473] [2022-04-18 16:34:33,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:33,549 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:33,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:33,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:33,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:33,551 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 437 [2022-04-18 16:34:33,552 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 301 transitions, 622 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 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 16:34:33,552 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:33,552 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 437 [2022-04-18 16:34:33,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:33,992 INFO L129 PetriNetUnfolder]: 1084/3008 cut-off events. [2022-04-18 16:34:33,993 INFO L130 PetriNetUnfolder]: For 171/527 co-relation queries the response was YES. [2022-04-18 16:34:34,000 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4633 conditions, 3008 events. 1084/3008 cut-off events. For 171/527 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 19766 event pairs, 627 based on Foata normal form. 0/2658 useless extension candidates. Maximal degree in co-relation 4554. Up to 1448 conditions per place. [2022-04-18 16:34:34,013 INFO L132 encePairwiseOnDemand]: 434/437 looper letters, 33 selfloop transitions, 2 changer transitions 0/300 dead transitions. [2022-04-18 16:34:34,014 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 300 transitions, 690 flow [2022-04-18 16:34:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:34,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:34,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1017 transitions. [2022-04-18 16:34:34,016 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7757437070938215 [2022-04-18 16:34:34,016 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1017 transitions. [2022-04-18 16:34:34,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1017 transitions. [2022-04-18 16:34:34,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:34,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1017 transitions. [2022-04-18 16:34:34,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 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 16:34:34,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 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 16:34:34,022 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 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 16:34:34,022 INFO L186 Difference]: Start difference. First operand has 301 places, 301 transitions, 622 flow. Second operand 3 states and 1017 transitions. [2022-04-18 16:34:34,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 300 transitions, 690 flow [2022-04-18 16:34:34,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 300 transitions, 686 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:34,028 INFO L242 Difference]: Finished difference. Result has 300 places, 300 transitions, 620 flow [2022-04-18 16:34:34,028 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=620, PETRI_PLACES=300, PETRI_TRANSITIONS=300} [2022-04-18 16:34:34,030 INFO L335 CegarLoopForPetriNet]: 377 programPoint places, -77 predicate places. [2022-04-18 16:34:34,030 INFO L478 AbstractCegarLoop]: Abstraction has has 300 places, 300 transitions, 620 flow [2022-04-18 16:34:34,031 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 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 16:34:34,031 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:34,031 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] [2022-04-18 16:34:34,031 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:34:34,031 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-04-18 16:34:34,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:34,032 INFO L85 PathProgramCache]: Analyzing trace with hash 191684090, now seen corresponding path program 1 times [2022-04-18 16:34:34,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:34,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968357909] [2022-04-18 16:34:34,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:34,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:34,078 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 16:34:34,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:34,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968357909] [2022-04-18 16:34:34,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968357909] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:34,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:34,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:34,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220269179] [2022-04-18 16:34:34,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:34,080 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:34,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:34,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:34,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:34,082 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 437 [2022-04-18 16:34:34,083 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 300 transitions, 620 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 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 16:34:34,083 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:34,083 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 437 [2022-04-18 16:34:34,083 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:34,418 INFO L129 PetriNetUnfolder]: 1084/3007 cut-off events. [2022-04-18 16:34:34,419 INFO L130 PetriNetUnfolder]: For 171/527 co-relation queries the response was YES. [2022-04-18 16:34:34,435 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4632 conditions, 3007 events. 1084/3007 cut-off events. For 171/527 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 19827 event pairs, 627 based on Foata normal form. 0/2658 useless extension candidates. Maximal degree in co-relation 4546. Up to 1448 conditions per place. [2022-04-18 16:34:34,451 INFO L132 encePairwiseOnDemand]: 434/437 looper letters, 33 selfloop transitions, 2 changer transitions 0/299 dead transitions. [2022-04-18 16:34:34,452 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 299 transitions, 688 flow [2022-04-18 16:34:34,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:34,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:34,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1017 transitions. [2022-04-18 16:34:34,454 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7757437070938215 [2022-04-18 16:34:34,454 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1017 transitions. [2022-04-18 16:34:34,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1017 transitions. [2022-04-18 16:34:34,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:34,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1017 transitions. [2022-04-18 16:34:34,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 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 16:34:34,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 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 16:34:34,458 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 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 16:34:34,459 INFO L186 Difference]: Start difference. First operand has 300 places, 300 transitions, 620 flow. Second operand 3 states and 1017 transitions. [2022-04-18 16:34:34,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 299 transitions, 688 flow [2022-04-18 16:34:34,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 299 transitions, 684 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:34,463 INFO L242 Difference]: Finished difference. Result has 299 places, 299 transitions, 618 flow [2022-04-18 16:34:34,463 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=614, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=618, PETRI_PLACES=299, PETRI_TRANSITIONS=299} [2022-04-18 16:34:34,464 INFO L335 CegarLoopForPetriNet]: 377 programPoint places, -78 predicate places. [2022-04-18 16:34:34,464 INFO L478 AbstractCegarLoop]: Abstraction has has 299 places, 299 transitions, 618 flow [2022-04-18 16:34:34,465 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 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 16:34:34,465 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:34,465 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] [2022-04-18 16:34:34,465 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:34:34,465 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-04-18 16:34:34,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:34,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1342019700, now seen corresponding path program 1 times [2022-04-18 16:34:34,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:34,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784801489] [2022-04-18 16:34:34,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:34,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:34,483 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 16:34:34,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:34,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784801489] [2022-04-18 16:34:34,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784801489] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:34,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:34,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:34,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179750886] [2022-04-18 16:34:34,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:34,485 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:34,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:34,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:34,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:34,486 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 437 [2022-04-18 16:34:34,487 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 299 transitions, 618 flow. Second operand has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 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 16:34:34,487 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:34,488 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 437 [2022-04-18 16:34:34,488 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:34,868 INFO L129 PetriNetUnfolder]: 1084/3005 cut-off events. [2022-04-18 16:34:34,869 INFO L130 PetriNetUnfolder]: For 171/527 co-relation queries the response was YES. [2022-04-18 16:34:34,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4631 conditions, 3005 events. 1084/3005 cut-off events. For 171/527 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 19726 event pairs, 627 based on Foata normal form. 0/2658 useless extension candidates. Maximal degree in co-relation 4537. Up to 1448 conditions per place. [2022-04-18 16:34:34,905 INFO L132 encePairwiseOnDemand]: 434/437 looper letters, 35 selfloop transitions, 1 changer transitions 0/297 dead transitions. [2022-04-18 16:34:34,906 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 297 transitions, 686 flow [2022-04-18 16:34:34,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:34,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:34,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1010 transitions. [2022-04-18 16:34:34,908 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7704042715484363 [2022-04-18 16:34:34,908 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1010 transitions. [2022-04-18 16:34:34,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1010 transitions. [2022-04-18 16:34:34,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:34,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1010 transitions. [2022-04-18 16:34:34,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 336.6666666666667) internal successors, (1010), 3 states have internal predecessors, (1010), 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 16:34:34,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 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 16:34:34,913 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 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 16:34:34,914 INFO L186 Difference]: Start difference. First operand has 299 places, 299 transitions, 618 flow. Second operand 3 states and 1010 transitions. [2022-04-18 16:34:34,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 297 transitions, 686 flow [2022-04-18 16:34:34,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 297 transitions, 682 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:34,918 INFO L242 Difference]: Finished difference. Result has 297 places, 297 transitions, 612 flow [2022-04-18 16:34:34,919 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=612, PETRI_PLACES=297, PETRI_TRANSITIONS=297} [2022-04-18 16:34:34,920 INFO L335 CegarLoopForPetriNet]: 377 programPoint places, -80 predicate places. [2022-04-18 16:34:34,920 INFO L478 AbstractCegarLoop]: Abstraction has has 297 places, 297 transitions, 612 flow [2022-04-18 16:34:34,921 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 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 16:34:34,921 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:34,921 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:34,921 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:34:34,922 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-04-18 16:34:34,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:34,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1945328250, now seen corresponding path program 1 times [2022-04-18 16:34:34,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:34,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320149810] [2022-04-18 16:34:34,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:34,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:34,951 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 16:34:34,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:34,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320149810] [2022-04-18 16:34:34,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320149810] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:34,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:34,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:34,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747954624] [2022-04-18 16:34:34,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:34,953 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:34,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:34,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:34,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:34,955 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 437 [2022-04-18 16:34:34,956 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 297 transitions, 612 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 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 16:34:34,956 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:34,956 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 437 [2022-04-18 16:34:34,956 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:35,368 INFO L129 PetriNetUnfolder]: 1084/3004 cut-off events. [2022-04-18 16:34:35,368 INFO L130 PetriNetUnfolder]: For 171/527 co-relation queries the response was YES. [2022-04-18 16:34:35,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4628 conditions, 3004 events. 1084/3004 cut-off events. For 171/527 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 19760 event pairs, 627 based on Foata normal form. 0/2658 useless extension candidates. Maximal degree in co-relation 4535. Up to 1448 conditions per place. [2022-04-18 16:34:35,401 INFO L132 encePairwiseOnDemand]: 434/437 looper letters, 33 selfloop transitions, 2 changer transitions 0/296 dead transitions. [2022-04-18 16:34:35,402 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 296 transitions, 680 flow [2022-04-18 16:34:35,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:35,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:35,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1017 transitions. [2022-04-18 16:34:35,404 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7757437070938215 [2022-04-18 16:34:35,404 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1017 transitions. [2022-04-18 16:34:35,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1017 transitions. [2022-04-18 16:34:35,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:35,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1017 transitions. [2022-04-18 16:34:35,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 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 16:34:35,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 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 16:34:35,409 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 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 16:34:35,409 INFO L186 Difference]: Start difference. First operand has 297 places, 297 transitions, 612 flow. Second operand 3 states and 1017 transitions. [2022-04-18 16:34:35,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 296 transitions, 680 flow [2022-04-18 16:34:35,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 296 transitions, 679 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:34:35,413 INFO L242 Difference]: Finished difference. Result has 297 places, 296 transitions, 613 flow [2022-04-18 16:34:35,414 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=609, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=613, PETRI_PLACES=297, PETRI_TRANSITIONS=296} [2022-04-18 16:34:35,414 INFO L335 CegarLoopForPetriNet]: 377 programPoint places, -80 predicate places. [2022-04-18 16:34:35,414 INFO L478 AbstractCegarLoop]: Abstraction has has 297 places, 296 transitions, 613 flow [2022-04-18 16:34:35,415 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 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 16:34:35,415 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:35,416 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:35,416 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:34:35,416 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 143 more)] === [2022-04-18 16:34:35,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:35,416 INFO L85 PathProgramCache]: Analyzing trace with hash 277735129, now seen corresponding path program 1 times [2022-04-18 16:34:35,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:35,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968575548] [2022-04-18 16:34:35,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:35,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:35,520 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 16:34:35,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:35,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968575548] [2022-04-18 16:34:35,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968575548] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:35,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:35,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:34:35,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763045825] [2022-04-18 16:34:35,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:35,522 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:34:35,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:35,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:34:35,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:34:35,524 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 437 [2022-04-18 16:34:35,525 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 296 transitions, 613 flow. Second operand has 6 states, 6 states have (on average 269.8333333333333) internal successors, (1619), 6 states have internal predecessors, (1619), 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 16:34:35,526 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:35,526 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 437 [2022-04-18 16:34:35,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand