./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-4.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-misc-4.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 4ed4cbcf73a390a7811d007883e420d1e9d8d4b9f5e59201847b4262dc4b0025 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:34:24,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:34:24,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:34:24,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:34:24,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:34:24,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:34:24,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:34:24,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:34:24,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:34:24,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:34:24,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:34:24,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:34:24,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:34:24,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:34:24,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:34:24,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:34:24,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:34:24,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:34:24,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:34:24,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:34:24,621 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:34:24,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:34:24,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:34:24,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:34:24,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:34:24,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:34:24,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:34:24,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:34:24,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:34:24,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:34:24,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:34:24,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:34:24,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:34:24,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:34:24,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:34:24,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:34:24,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:34:24,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:34:24,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:34:24,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:34:24,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:34:24,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:34:24,648 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:34:24,670 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:34:24,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:34:24,671 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:34:24,671 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:34:24,672 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:34:24,672 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:34:24,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:34:24,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:34:24,673 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:34:24,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:34:24,673 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:34:24,674 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:34:24,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:34:24,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:34:24,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:34:24,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:34:24,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:34:24,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:34:24,676 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:34:24,676 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:34:24,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:34:24,676 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:34:24,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:34:24,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:34:24,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:34:24,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:34:24,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:34:24,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:34:24,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:34:24,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:34:24,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:34:24,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:34:24,678 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:34:24,678 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:34:24,678 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:34:24,679 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ed4cbcf73a390a7811d007883e420d1e9d8d4b9f5e59201847b4262dc4b0025 [2022-04-18 16:34:24,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:34:24,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:34:24,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:34:24,958 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:34:24,958 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:34:24,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-4.wvr.c [2022-04-18 16:34:25,001 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9746e6ca/b4c5f685699c4343a1f37c30792a047a/FLAGdbd338ef4 [2022-04-18 16:34:25,360 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:34:25,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-4.wvr.c [2022-04-18 16:34:25,367 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9746e6ca/b4c5f685699c4343a1f37c30792a047a/FLAGdbd338ef4 [2022-04-18 16:34:25,379 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9746e6ca/b4c5f685699c4343a1f37c30792a047a [2022-04-18 16:34:25,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:34:25,382 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:34:25,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:34:25,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:34:25,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:34:25,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:34:25" (1/1) ... [2022-04-18 16:34:25,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a0b5fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:25, skipping insertion in model container [2022-04-18 16:34:25,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:34:25" (1/1) ... [2022-04-18 16:34:25,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:34:25,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:34:25,567 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-misc-4.wvr.c[2950,2963] [2022-04-18 16:34:25,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:34:25,573 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:34:25,593 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-misc-4.wvr.c[2950,2963] [2022-04-18 16:34:25,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:34:25,603 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:34:25,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:25 WrapperNode [2022-04-18 16:34:25,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:34:25,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:34:25,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:34:25,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:34:25,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:25" (1/1) ... [2022-04-18 16:34:25,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:25" (1/1) ... [2022-04-18 16:34:25,633 INFO L137 Inliner]: procedures = 22, calls = 43, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 124 [2022-04-18 16:34:25,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:34:25,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:34:25,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:34:25,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:34:25,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:25" (1/1) ... [2022-04-18 16:34:25,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:25" (1/1) ... [2022-04-18 16:34:25,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:25" (1/1) ... [2022-04-18 16:34:25,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:25" (1/1) ... [2022-04-18 16:34:25,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:25" (1/1) ... [2022-04-18 16:34:25,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:25" (1/1) ... [2022-04-18 16:34:25,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:25" (1/1) ... [2022-04-18 16:34:25,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:34:25,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:34:25,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:34:25,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:34:25,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:25" (1/1) ... [2022-04-18 16:34:25,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:34:25,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:34:25,699 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 16:34:25,708 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 16:34:25,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:34:25,723 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:34:25,723 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:34:25,723 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:34:25,723 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:34:25,725 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:34:25,725 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:34:25,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:34:25,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:34:25,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:34:25,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 16:34:25,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 16:34:25,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:34:25,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:34:25,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:34:25,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:34:25,727 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 16:34:25,833 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:34:25,834 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:34:26,131 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:34:26,179 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:34:26,179 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-18 16:34:26,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:34:26 BoogieIcfgContainer [2022-04-18 16:34:26,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:34:26,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:34:26,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:34:26,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:34:26,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:34:25" (1/3) ... [2022-04-18 16:34:26,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70eaf0db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:34:26, skipping insertion in model container [2022-04-18 16:34:26,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:25" (2/3) ... [2022-04-18 16:34:26,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70eaf0db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:34:26, skipping insertion in model container [2022-04-18 16:34:26,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:34:26" (3/3) ... [2022-04-18 16:34:26,188 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-misc-4.wvr.c [2022-04-18 16:34:26,192 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:34:26,192 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:34:26,192 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-04-18 16:34:26,192 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:34:26,266 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 16:34:26,335 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:34:26,339 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 16:34:26,340 INFO L341 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2022-04-18 16:34:26,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 208 places, 208 transitions, 440 flow [2022-04-18 16:34:26,390 INFO L129 PetriNetUnfolder]: 10/205 cut-off events. [2022-04-18 16:34:26,401 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 16:34:26,407 INFO L84 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 205 events. 10/205 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 301 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 163. Up to 2 conditions per place. [2022-04-18 16:34:26,408 INFO L82 GeneralOperation]: Start removeDead. Operand has 208 places, 208 transitions, 440 flow [2022-04-18 16:34:26,414 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 192 places, 192 transitions, 399 flow [2022-04-18 16:34:26,418 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2022-04-18 16:34:26,418 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:34:26,418 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:26,418 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] [2022-04-18 16:34:26,419 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2022-04-18 16:34:26,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:26,423 INFO L85 PathProgramCache]: Analyzing trace with hash 520629780, now seen corresponding path program 1 times [2022-04-18 16:34:26,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:26,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484258565] [2022-04-18 16:34:26,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:26,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:26,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:26,574 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 16:34:26,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:26,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484258565] [2022-04-18 16:34:26,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484258565] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:26,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:26,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:26,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924407173] [2022-04-18 16:34:26,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:26,581 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:26,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:26,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:26,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:26,599 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 208 [2022-04-18 16:34:26,601 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 192 transitions, 399 flow. Second operand has 3 states, 3 states have (on average 167.33333333333334) internal successors, (502), 3 states have internal predecessors, (502), 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 16:34:26,601 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:26,601 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 208 [2022-04-18 16:34:26,602 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:26,755 INFO L129 PetriNetUnfolder]: 83/446 cut-off events. [2022-04-18 16:34:26,755 INFO L130 PetriNetUnfolder]: For 41/55 co-relation queries the response was YES. [2022-04-18 16:34:26,757 INFO L84 FinitePrefix]: Finished finitePrefix Result has 611 conditions, 446 events. 83/446 cut-off events. For 41/55 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1885 event pairs, 38 based on Foata normal form. 22/366 useless extension candidates. Maximal degree in co-relation 446. Up to 125 conditions per place. [2022-04-18 16:34:26,760 INFO L132 encePairwiseOnDemand]: 188/208 looper letters, 20 selfloop transitions, 2 changer transitions 2/174 dead transitions. [2022-04-18 16:34:26,760 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 174 transitions, 407 flow [2022-04-18 16:34:26,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:26,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:26,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 538 transitions. [2022-04-18 16:34:26,774 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8621794871794872 [2022-04-18 16:34:26,774 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 538 transitions. [2022-04-18 16:34:26,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 538 transitions. [2022-04-18 16:34:26,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:26,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 538 transitions. [2022-04-18 16:34:26,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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 16:34:26,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 16:34:26,785 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 16:34:26,786 INFO L186 Difference]: Start difference. First operand has 192 places, 192 transitions, 399 flow. Second operand 3 states and 538 transitions. [2022-04-18 16:34:26,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 174 transitions, 407 flow [2022-04-18 16:34:26,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 174 transitions, 398 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:34:26,792 INFO L242 Difference]: Finished difference. Result has 174 places, 172 transitions, 354 flow [2022-04-18 16:34:26,793 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=174, PETRI_TRANSITIONS=172} [2022-04-18 16:34:26,796 INFO L335 CegarLoopForPetriNet]: 192 programPoint places, -18 predicate places. [2022-04-18 16:34:26,796 INFO L478 AbstractCegarLoop]: Abstraction has has 174 places, 172 transitions, 354 flow [2022-04-18 16:34:26,796 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.33333333333334) internal successors, (502), 3 states have internal predecessors, (502), 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 16:34:26,796 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:26,796 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] [2022-04-18 16:34:26,797 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:34:26,797 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2022-04-18 16:34:26,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:26,797 INFO L85 PathProgramCache]: Analyzing trace with hash -673983791, now seen corresponding path program 1 times [2022-04-18 16:34:26,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:26,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328687347] [2022-04-18 16:34:26,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:26,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:26,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:26,830 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 16:34:26,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:26,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328687347] [2022-04-18 16:34:26,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328687347] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:26,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:26,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:26,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073707025] [2022-04-18 16:34:26,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:26,841 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:26,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:26,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:26,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:26,843 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 208 [2022-04-18 16:34:26,845 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 172 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 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 16:34:26,846 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:26,846 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 208 [2022-04-18 16:34:26,846 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:26,988 INFO L129 PetriNetUnfolder]: 254/851 cut-off events. [2022-04-18 16:34:26,989 INFO L130 PetriNetUnfolder]: For 8/39 co-relation queries the response was YES. [2022-04-18 16:34:26,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1331 conditions, 851 events. 254/851 cut-off events. For 8/39 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 5037 event pairs, 155 based on Foata normal form. 0/656 useless extension candidates. Maximal degree in co-relation 1299. Up to 389 conditions per place. [2022-04-18 16:34:26,998 INFO L132 encePairwiseOnDemand]: 205/208 looper letters, 32 selfloop transitions, 2 changer transitions 0/171 dead transitions. [2022-04-18 16:34:26,998 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 171 transitions, 420 flow [2022-04-18 16:34:26,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:26,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:27,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 497 transitions. [2022-04-18 16:34:27,001 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7964743589743589 [2022-04-18 16:34:27,002 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 497 transitions. [2022-04-18 16:34:27,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 497 transitions. [2022-04-18 16:34:27,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:27,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 497 transitions. [2022-04-18 16:34:27,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 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 16:34:27,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 16:34:27,006 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 16:34:27,006 INFO L186 Difference]: Start difference. First operand has 174 places, 172 transitions, 354 flow. Second operand 3 states and 497 transitions. [2022-04-18 16:34:27,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 171 transitions, 420 flow [2022-04-18 16:34:27,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 171 transitions, 416 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:27,012 INFO L242 Difference]: Finished difference. Result has 171 places, 171 transitions, 352 flow [2022-04-18 16:34:27,013 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=171, PETRI_TRANSITIONS=171} [2022-04-18 16:34:27,013 INFO L335 CegarLoopForPetriNet]: 192 programPoint places, -21 predicate places. [2022-04-18 16:34:27,014 INFO L478 AbstractCegarLoop]: Abstraction has has 171 places, 171 transitions, 352 flow [2022-04-18 16:34:27,014 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 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 16:34:27,014 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:27,015 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 16:34:27,015 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:34:27,015 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2022-04-18 16:34:27,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:27,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1024823952, now seen corresponding path program 1 times [2022-04-18 16:34:27,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:27,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205279329] [2022-04-18 16:34:27,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:27,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:27,069 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 16:34:27,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:27,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205279329] [2022-04-18 16:34:27,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205279329] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:27,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:27,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:27,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843187745] [2022-04-18 16:34:27,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:27,070 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:27,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:27,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:27,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:27,072 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 208 [2022-04-18 16:34:27,072 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 171 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 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 16:34:27,072 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:27,072 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 208 [2022-04-18 16:34:27,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:27,189 INFO L129 PetriNetUnfolder]: 272/703 cut-off events. [2022-04-18 16:34:27,189 INFO L130 PetriNetUnfolder]: For 26/57 co-relation queries the response was YES. [2022-04-18 16:34:27,193 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1198 conditions, 703 events. 272/703 cut-off events. For 26/57 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3524 event pairs, 173 based on Foata normal form. 0/577 useless extension candidates. Maximal degree in co-relation 1160. Up to 413 conditions per place. [2022-04-18 16:34:27,198 INFO L132 encePairwiseOnDemand]: 205/208 looper letters, 29 selfloop transitions, 2 changer transitions 0/170 dead transitions. [2022-04-18 16:34:27,199 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 170 transitions, 412 flow [2022-04-18 16:34:27,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:27,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:27,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 503 transitions. [2022-04-18 16:34:27,202 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8060897435897436 [2022-04-18 16:34:27,202 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 503 transitions. [2022-04-18 16:34:27,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 503 transitions. [2022-04-18 16:34:27,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:27,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 503 transitions. [2022-04-18 16:34:27,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 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 16:34:27,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 16:34:27,205 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 16:34:27,206 INFO L186 Difference]: Start difference. First operand has 171 places, 171 transitions, 352 flow. Second operand 3 states and 503 transitions. [2022-04-18 16:34:27,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 170 transitions, 412 flow [2022-04-18 16:34:27,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 170 transitions, 408 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:27,212 INFO L242 Difference]: Finished difference. Result has 170 places, 170 transitions, 350 flow [2022-04-18 16:34:27,213 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=350, PETRI_PLACES=170, PETRI_TRANSITIONS=170} [2022-04-18 16:34:27,214 INFO L335 CegarLoopForPetriNet]: 192 programPoint places, -22 predicate places. [2022-04-18 16:34:27,214 INFO L478 AbstractCegarLoop]: Abstraction has has 170 places, 170 transitions, 350 flow [2022-04-18 16:34:27,224 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 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 16:34:27,224 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:27,224 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] [2022-04-18 16:34:27,225 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:34:27,225 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2022-04-18 16:34:27,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:27,226 INFO L85 PathProgramCache]: Analyzing trace with hash -608196346, now seen corresponding path program 1 times [2022-04-18 16:34:27,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:27,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185021349] [2022-04-18 16:34:27,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:27,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:27,298 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 16:34:27,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:27,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185021349] [2022-04-18 16:34:27,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185021349] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:27,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:27,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:27,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327147335] [2022-04-18 16:34:27,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:27,301 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:27,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:27,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:27,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:27,304 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 208 [2022-04-18 16:34:27,304 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 170 transitions, 350 flow. Second operand has 3 states, 3 states have (on average 167.33333333333334) internal successors, (502), 3 states have internal predecessors, (502), 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 16:34:27,304 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:27,305 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 208 [2022-04-18 16:34:27,305 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:27,386 INFO L129 PetriNetUnfolder]: 83/441 cut-off events. [2022-04-18 16:34:27,387 INFO L130 PetriNetUnfolder]: For 8/22 co-relation queries the response was YES. [2022-04-18 16:34:27,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 441 events. 83/441 cut-off events. For 8/22 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1880 event pairs, 38 based on Foata normal form. 0/344 useless extension candidates. Maximal degree in co-relation 550. Up to 125 conditions per place. [2022-04-18 16:34:27,392 INFO L132 encePairwiseOnDemand]: 205/208 looper letters, 20 selfloop transitions, 2 changer transitions 0/169 dead transitions. [2022-04-18 16:34:27,393 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 169 transitions, 392 flow [2022-04-18 16:34:27,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:27,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:27,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 521 transitions. [2022-04-18 16:34:27,395 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8349358974358975 [2022-04-18 16:34:27,396 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 521 transitions. [2022-04-18 16:34:27,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 521 transitions. [2022-04-18 16:34:27,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:27,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 521 transitions. [2022-04-18 16:34:27,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 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 16:34:27,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 16:34:27,402 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 16:34:27,402 INFO L186 Difference]: Start difference. First operand has 170 places, 170 transitions, 350 flow. Second operand 3 states and 521 transitions. [2022-04-18 16:34:27,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 169 transitions, 392 flow [2022-04-18 16:34:27,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 169 transitions, 388 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:27,410 INFO L242 Difference]: Finished difference. Result has 169 places, 169 transitions, 348 flow [2022-04-18 16:34:27,410 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=348, PETRI_PLACES=169, PETRI_TRANSITIONS=169} [2022-04-18 16:34:27,412 INFO L335 CegarLoopForPetriNet]: 192 programPoint places, -23 predicate places. [2022-04-18 16:34:27,412 INFO L478 AbstractCegarLoop]: Abstraction has has 169 places, 169 transitions, 348 flow [2022-04-18 16:34:27,412 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.33333333333334) internal successors, (502), 3 states have internal predecessors, (502), 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 16:34:27,413 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:27,413 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] [2022-04-18 16:34:27,413 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:34:27,413 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2022-04-18 16:34:27,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:27,414 INFO L85 PathProgramCache]: Analyzing trace with hash 855273049, now seen corresponding path program 1 times [2022-04-18 16:34:27,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:27,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859506221] [2022-04-18 16:34:27,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:27,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:27,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:27,475 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 16:34:27,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:27,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859506221] [2022-04-18 16:34:27,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859506221] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:27,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:27,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:27,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688348958] [2022-04-18 16:34:27,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:27,477 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:27,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:27,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:27,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:27,479 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 208 [2022-04-18 16:34:27,480 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 169 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 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 16:34:27,480 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:27,480 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 208 [2022-04-18 16:34:27,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:27,572 INFO L129 PetriNetUnfolder]: 129/703 cut-off events. [2022-04-18 16:34:27,572 INFO L130 PetriNetUnfolder]: For 15/30 co-relation queries the response was YES. [2022-04-18 16:34:27,575 INFO L84 FinitePrefix]: Finished finitePrefix Result has 927 conditions, 703 events. 129/703 cut-off events. For 15/30 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3775 event pairs, 18 based on Foata normal form. 0/571 useless extension candidates. Maximal degree in co-relation 876. Up to 132 conditions per place. [2022-04-18 16:34:27,579 INFO L132 encePairwiseOnDemand]: 201/208 looper letters, 25 selfloop transitions, 6 changer transitions 0/181 dead transitions. [2022-04-18 16:34:27,579 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 181 transitions, 439 flow [2022-04-18 16:34:27,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:27,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:27,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 539 transitions. [2022-04-18 16:34:27,581 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8637820512820513 [2022-04-18 16:34:27,581 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 539 transitions. [2022-04-18 16:34:27,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 539 transitions. [2022-04-18 16:34:27,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:27,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 539 transitions. [2022-04-18 16:34:27,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 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 16:34:27,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 16:34:27,585 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 16:34:27,585 INFO L186 Difference]: Start difference. First operand has 169 places, 169 transitions, 348 flow. Second operand 3 states and 539 transitions. [2022-04-18 16:34:27,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 181 transitions, 439 flow [2022-04-18 16:34:27,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 181 transitions, 435 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:27,589 INFO L242 Difference]: Finished difference. Result has 170 places, 173 transitions, 386 flow [2022-04-18 16:34:27,589 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=386, PETRI_PLACES=170, PETRI_TRANSITIONS=173} [2022-04-18 16:34:27,590 INFO L335 CegarLoopForPetriNet]: 192 programPoint places, -22 predicate places. [2022-04-18 16:34:27,590 INFO L478 AbstractCegarLoop]: Abstraction has has 170 places, 173 transitions, 386 flow [2022-04-18 16:34:27,590 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 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 16:34:27,591 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:27,591 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 16:34:27,591 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:34:27,591 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2022-04-18 16:34:27,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:27,592 INFO L85 PathProgramCache]: Analyzing trace with hash 971673434, now seen corresponding path program 1 times [2022-04-18 16:34:27,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:27,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696343827] [2022-04-18 16:34:27,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:27,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:27,656 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 16:34:27,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:27,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696343827] [2022-04-18 16:34:27,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696343827] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:27,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:27,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:27,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928891987] [2022-04-18 16:34:27,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:27,657 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:27,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:27,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:27,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:27,669 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 208 [2022-04-18 16:34:27,669 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 173 transitions, 386 flow. Second operand has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 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 16:34:27,669 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:27,669 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 208 [2022-04-18 16:34:27,669 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:27,854 INFO L129 PetriNetUnfolder]: 388/1646 cut-off events. [2022-04-18 16:34:27,854 INFO L130 PetriNetUnfolder]: For 403/502 co-relation queries the response was YES. [2022-04-18 16:34:27,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2694 conditions, 1646 events. 388/1646 cut-off events. For 403/502 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 12036 event pairs, 147 based on Foata normal form. 2/1343 useless extension candidates. Maximal degree in co-relation 646. Up to 356 conditions per place. [2022-04-18 16:34:27,871 INFO L132 encePairwiseOnDemand]: 201/208 looper letters, 44 selfloop transitions, 3 changer transitions 0/184 dead transitions. [2022-04-18 16:34:27,872 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 184 transitions, 526 flow [2022-04-18 16:34:27,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:27,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:27,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 514 transitions. [2022-04-18 16:34:27,874 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8237179487179487 [2022-04-18 16:34:27,874 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 514 transitions. [2022-04-18 16:34:27,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 514 transitions. [2022-04-18 16:34:27,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:27,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 514 transitions. [2022-04-18 16:34:27,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 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 16:34:27,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 16:34:27,890 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 16:34:27,891 INFO L186 Difference]: Start difference. First operand has 170 places, 173 transitions, 386 flow. Second operand 3 states and 514 transitions. [2022-04-18 16:34:27,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 184 transitions, 526 flow [2022-04-18 16:34:27,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 184 transitions, 508 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:27,897 INFO L242 Difference]: Finished difference. Result has 167 places, 170 transitions, 379 flow [2022-04-18 16:34:27,898 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=379, PETRI_PLACES=167, PETRI_TRANSITIONS=170} [2022-04-18 16:34:27,900 INFO L335 CegarLoopForPetriNet]: 192 programPoint places, -25 predicate places. [2022-04-18 16:34:27,900 INFO L478 AbstractCegarLoop]: Abstraction has has 167 places, 170 transitions, 379 flow [2022-04-18 16:34:27,901 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 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 16:34:27,901 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:27,901 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] [2022-04-18 16:34:27,901 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:34:27,901 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2022-04-18 16:34:27,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:27,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1770281222, now seen corresponding path program 1 times [2022-04-18 16:34:27,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:27,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391808688] [2022-04-18 16:34:27,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:27,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:27,960 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 16:34:27,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:27,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391808688] [2022-04-18 16:34:27,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391808688] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:27,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:27,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:27,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416774477] [2022-04-18 16:34:27,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:27,965 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:27,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:27,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:27,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:27,968 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 208 [2022-04-18 16:34:27,969 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 170 transitions, 379 flow. Second operand has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 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 16:34:27,969 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:27,969 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 208 [2022-04-18 16:34:27,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:28,224 INFO L129 PetriNetUnfolder]: 637/2045 cut-off events. [2022-04-18 16:34:28,225 INFO L130 PetriNetUnfolder]: For 412/567 co-relation queries the response was YES. [2022-04-18 16:34:28,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3598 conditions, 2045 events. 637/2045 cut-off events. For 412/567 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 14848 event pairs, 226 based on Foata normal form. 3/1743 useless extension candidates. Maximal degree in co-relation 1388. Up to 599 conditions per place. [2022-04-18 16:34:28,243 INFO L132 encePairwiseOnDemand]: 202/208 looper letters, 42 selfloop transitions, 3 changer transitions 0/182 dead transitions. [2022-04-18 16:34:28,243 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 182 transitions, 511 flow [2022-04-18 16:34:28,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:28,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:28,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 520 transitions. [2022-04-18 16:34:28,245 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2022-04-18 16:34:28,246 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 520 transitions. [2022-04-18 16:34:28,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 520 transitions. [2022-04-18 16:34:28,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:28,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 520 transitions. [2022-04-18 16:34:28,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 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 16:34:28,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 16:34:28,250 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 16:34:28,250 INFO L186 Difference]: Start difference. First operand has 167 places, 170 transitions, 379 flow. Second operand 3 states and 520 transitions. [2022-04-18 16:34:28,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 182 transitions, 511 flow [2022-04-18 16:34:28,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 182 transitions, 508 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:34:28,255 INFO L242 Difference]: Finished difference. Result has 166 places, 168 transitions, 383 flow [2022-04-18 16:34:28,255 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=383, PETRI_PLACES=166, PETRI_TRANSITIONS=168} [2022-04-18 16:34:28,256 INFO L335 CegarLoopForPetriNet]: 192 programPoint places, -26 predicate places. [2022-04-18 16:34:28,256 INFO L478 AbstractCegarLoop]: Abstraction has has 166 places, 168 transitions, 383 flow [2022-04-18 16:34:28,257 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 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 16:34:28,257 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:28,257 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] [2022-04-18 16:34:28,257 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:34:28,257 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2022-04-18 16:34:28,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:28,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1773614485, now seen corresponding path program 1 times [2022-04-18 16:34:28,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:28,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698832903] [2022-04-18 16:34:28,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:28,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:28,290 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 16:34:28,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:28,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698832903] [2022-04-18 16:34:28,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698832903] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:28,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:28,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:28,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959822474] [2022-04-18 16:34:28,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:28,293 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:28,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:28,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:28,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:28,294 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 208 [2022-04-18 16:34:28,295 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 168 transitions, 383 flow. Second operand has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 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 16:34:28,295 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:28,295 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 208 [2022-04-18 16:34:28,296 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:28,513 INFO L129 PetriNetUnfolder]: 334/1831 cut-off events. [2022-04-18 16:34:28,513 INFO L130 PetriNetUnfolder]: For 287/486 co-relation queries the response was YES. [2022-04-18 16:34:28,521 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2790 conditions, 1831 events. 334/1831 cut-off events. For 287/486 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 13857 event pairs, 23 based on Foata normal form. 15/1595 useless extension candidates. Maximal degree in co-relation 1084. Up to 393 conditions per place. [2022-04-18 16:34:28,530 INFO L132 encePairwiseOnDemand]: 201/208 looper letters, 34 selfloop transitions, 7 changer transitions 0/185 dead transitions. [2022-04-18 16:34:28,530 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 185 transitions, 523 flow [2022-04-18 16:34:28,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:28,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:28,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 540 transitions. [2022-04-18 16:34:28,532 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8653846153846154 [2022-04-18 16:34:28,532 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 540 transitions. [2022-04-18 16:34:28,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 540 transitions. [2022-04-18 16:34:28,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:28,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 540 transitions. [2022-04-18 16:34:28,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 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 16:34:28,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 16:34:28,536 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 16:34:28,536 INFO L186 Difference]: Start difference. First operand has 166 places, 168 transitions, 383 flow. Second operand 3 states and 540 transitions. [2022-04-18 16:34:28,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 185 transitions, 523 flow [2022-04-18 16:34:28,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 185 transitions, 520 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:34:28,542 INFO L242 Difference]: Finished difference. Result has 168 places, 172 transitions, 428 flow [2022-04-18 16:34:28,542 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=428, PETRI_PLACES=168, PETRI_TRANSITIONS=172} [2022-04-18 16:34:28,544 INFO L335 CegarLoopForPetriNet]: 192 programPoint places, -24 predicate places. [2022-04-18 16:34:28,545 INFO L478 AbstractCegarLoop]: Abstraction has has 168 places, 172 transitions, 428 flow [2022-04-18 16:34:28,545 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 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 16:34:28,545 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:28,545 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] [2022-04-18 16:34:28,545 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:34:28,546 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2022-04-18 16:34:28,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:28,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1468247998, now seen corresponding path program 1 times [2022-04-18 16:34:28,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:28,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918345521] [2022-04-18 16:34:28,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:28,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:28,609 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 16:34:28,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:28,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918345521] [2022-04-18 16:34:28,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918345521] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:28,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:28,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:28,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526530780] [2022-04-18 16:34:28,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:28,611 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:28,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:28,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:28,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:28,612 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 208 [2022-04-18 16:34:28,613 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 172 transitions, 428 flow. Second operand has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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 16:34:28,613 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:28,613 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 208 [2022-04-18 16:34:28,613 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:28,926 INFO L129 PetriNetUnfolder]: 669/2572 cut-off events. [2022-04-18 16:34:28,926 INFO L130 PetriNetUnfolder]: For 1099/1477 co-relation queries the response was YES. [2022-04-18 16:34:28,935 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4962 conditions, 2572 events. 669/2572 cut-off events. For 1099/1477 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 21022 event pairs, 235 based on Foata normal form. 0/2247 useless extension candidates. Maximal degree in co-relation 2028. Up to 946 conditions per place. [2022-04-18 16:34:28,950 INFO L132 encePairwiseOnDemand]: 205/208 looper letters, 48 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2022-04-18 16:34:28,951 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 182 transitions, 577 flow [2022-04-18 16:34:28,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:28,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:28,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 501 transitions. [2022-04-18 16:34:28,953 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8028846153846154 [2022-04-18 16:34:28,953 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 501 transitions. [2022-04-18 16:34:28,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 501 transitions. [2022-04-18 16:34:28,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:28,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 501 transitions. [2022-04-18 16:34:28,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 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 16:34:28,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 16:34:28,956 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 16:34:28,957 INFO L186 Difference]: Start difference. First operand has 168 places, 172 transitions, 428 flow. Second operand 3 states and 501 transitions. [2022-04-18 16:34:28,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 182 transitions, 577 flow [2022-04-18 16:34:28,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 182 transitions, 557 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:28,963 INFO L242 Difference]: Finished difference. Result has 167 places, 171 transitions, 416 flow [2022-04-18 16:34:28,964 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=416, PETRI_PLACES=167, PETRI_TRANSITIONS=171} [2022-04-18 16:34:28,965 INFO L335 CegarLoopForPetriNet]: 192 programPoint places, -25 predicate places. [2022-04-18 16:34:28,965 INFO L478 AbstractCegarLoop]: Abstraction has has 167 places, 171 transitions, 416 flow [2022-04-18 16:34:28,965 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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 16:34:28,966 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:28,966 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] [2022-04-18 16:34:28,966 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:34:28,966 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2022-04-18 16:34:28,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:28,967 INFO L85 PathProgramCache]: Analyzing trace with hash 2007605700, now seen corresponding path program 1 times [2022-04-18 16:34:28,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:28,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802827250] [2022-04-18 16:34:28,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:28,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:29,009 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 16:34:29,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:29,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802827250] [2022-04-18 16:34:29,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802827250] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:29,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:29,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:29,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889642120] [2022-04-18 16:34:29,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:29,014 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:29,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:29,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:29,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:29,017 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 208 [2022-04-18 16:34:29,017 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 171 transitions, 416 flow. Second operand has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 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 16:34:29,017 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:29,018 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 208 [2022-04-18 16:34:29,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:29,331 INFO L129 PetriNetUnfolder]: 844/2517 cut-off events. [2022-04-18 16:34:29,331 INFO L130 PetriNetUnfolder]: For 984/1388 co-relation queries the response was YES. [2022-04-18 16:34:29,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5071 conditions, 2517 events. 844/2517 cut-off events. For 984/1388 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 19157 event pairs, 257 based on Foata normal form. 0/2219 useless extension candidates. Maximal degree in co-relation 4136. Up to 1136 conditions per place. [2022-04-18 16:34:29,356 INFO L132 encePairwiseOnDemand]: 205/208 looper letters, 46 selfloop transitions, 2 changer transitions 0/181 dead transitions. [2022-04-18 16:34:29,356 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 181 transitions, 555 flow [2022-04-18 16:34:29,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:29,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:29,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 508 transitions. [2022-04-18 16:34:29,358 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8141025641025641 [2022-04-18 16:34:29,358 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 508 transitions. [2022-04-18 16:34:29,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 508 transitions. [2022-04-18 16:34:29,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:29,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 508 transitions. [2022-04-18 16:34:29,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:29,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 16:34:29,362 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 16:34:29,362 INFO L186 Difference]: Start difference. First operand has 167 places, 171 transitions, 416 flow. Second operand 3 states and 508 transitions. [2022-04-18 16:34:29,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 181 transitions, 555 flow [2022-04-18 16:34:29,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 181 transitions, 551 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:29,367 INFO L242 Difference]: Finished difference. Result has 166 places, 170 transitions, 414 flow [2022-04-18 16:34:29,368 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=414, PETRI_PLACES=166, PETRI_TRANSITIONS=170} [2022-04-18 16:34:29,368 INFO L335 CegarLoopForPetriNet]: 192 programPoint places, -26 predicate places. [2022-04-18 16:34:29,369 INFO L478 AbstractCegarLoop]: Abstraction has has 166 places, 170 transitions, 414 flow [2022-04-18 16:34:29,369 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 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 16:34:29,369 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:29,369 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] [2022-04-18 16:34:29,369 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:34:29,370 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2022-04-18 16:34:29,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:29,370 INFO L85 PathProgramCache]: Analyzing trace with hash -678941982, now seen corresponding path program 1 times [2022-04-18 16:34:29,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:29,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821907462] [2022-04-18 16:34:29,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:29,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:29,512 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 16:34:29,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:29,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821907462] [2022-04-18 16:34:29,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821907462] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:29,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:29,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:34:29,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59950561] [2022-04-18 16:34:29,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:29,514 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:34:29,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:29,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:34:29,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:34:29,516 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 208 [2022-04-18 16:34:29,516 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 170 transitions, 414 flow. Second operand has 6 states, 6 states have (on average 153.0) internal successors, (918), 6 states have internal predecessors, (918), 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 16:34:29,517 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:29,517 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 208 [2022-04-18 16:34:29,517 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:30,048 INFO L129 PetriNetUnfolder]: 2214/4646 cut-off events. [2022-04-18 16:34:30,048 INFO L130 PetriNetUnfolder]: For 2664/3473 co-relation queries the response was YES. [2022-04-18 16:34:30,063 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10711 conditions, 4646 events. 2214/4646 cut-off events. For 2664/3473 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 31812 event pairs, 142 based on Foata normal form. 8/4191 useless extension candidates. Maximal degree in co-relation 8376. Up to 1467 conditions per place. [2022-04-18 16:34:30,088 INFO L132 encePairwiseOnDemand]: 203/208 looper letters, 116 selfloop transitions, 4 changer transitions 0/245 dead transitions. [2022-04-18 16:34:30,088 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 245 transitions, 980 flow [2022-04-18 16:34:30,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:34:30,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:34:30,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 977 transitions. [2022-04-18 16:34:30,091 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7828525641025641 [2022-04-18 16:34:30,091 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 977 transitions. [2022-04-18 16:34:30,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 977 transitions. [2022-04-18 16:34:30,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:30,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 977 transitions. [2022-04-18 16:34:30,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.83333333333334) internal successors, (977), 6 states have internal predecessors, (977), 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 16:34:30,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 208.0) internal successors, (1456), 7 states have internal predecessors, (1456), 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 16:34:30,097 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 208.0) internal successors, (1456), 7 states have internal predecessors, (1456), 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 16:34:30,097 INFO L186 Difference]: Start difference. First operand has 166 places, 170 transitions, 414 flow. Second operand 6 states and 977 transitions. [2022-04-18 16:34:30,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 245 transitions, 980 flow [2022-04-18 16:34:30,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 245 transitions, 976 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:30,102 INFO L242 Difference]: Finished difference. Result has 168 places, 169 transitions, 416 flow [2022-04-18 16:34:30,103 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=416, PETRI_PLACES=168, PETRI_TRANSITIONS=169} [2022-04-18 16:34:30,103 INFO L335 CegarLoopForPetriNet]: 192 programPoint places, -24 predicate places. [2022-04-18 16:34:30,103 INFO L478 AbstractCegarLoop]: Abstraction has has 168 places, 169 transitions, 416 flow [2022-04-18 16:34:30,104 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 153.0) internal successors, (918), 6 states have internal predecessors, (918), 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 16:34:30,104 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:30,104 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:30,104 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:34:30,105 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2022-04-18 16:34:30,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:30,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1727177596, now seen corresponding path program 1 times [2022-04-18 16:34:30,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:30,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522233122] [2022-04-18 16:34:30,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:30,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:30,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:30,202 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 16:34:30,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:30,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522233122] [2022-04-18 16:34:30,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522233122] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:30,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:30,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:34:30,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815160692] [2022-04-18 16:34:30,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:30,204 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:34:30,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:30,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:34:30,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:34:30,205 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 208 [2022-04-18 16:34:30,206 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 169 transitions, 416 flow. Second operand has 6 states, 6 states have (on average 154.16666666666666) internal successors, (925), 6 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:30,207 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:30,207 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 208 [2022-04-18 16:34:30,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:30,746 INFO L129 PetriNetUnfolder]: 2018/4492 cut-off events. [2022-04-18 16:34:30,746 INFO L130 PetriNetUnfolder]: For 2516/3074 co-relation queries the response was YES. [2022-04-18 16:34:30,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10334 conditions, 4492 events. 2018/4492 cut-off events. For 2516/3074 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 31876 event pairs, 582 based on Foata normal form. 0/3906 useless extension candidates. Maximal degree in co-relation 3196. Up to 2311 conditions per place. [2022-04-18 16:34:30,785 INFO L132 encePairwiseOnDemand]: 203/208 looper letters, 79 selfloop transitions, 4 changer transitions 0/208 dead transitions. [2022-04-18 16:34:30,785 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 208 transitions, 756 flow [2022-04-18 16:34:30,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:34:30,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:34:30,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 960 transitions. [2022-04-18 16:34:30,788 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7692307692307693 [2022-04-18 16:34:30,788 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 960 transitions. [2022-04-18 16:34:30,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 960 transitions. [2022-04-18 16:34:30,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:30,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 960 transitions. [2022-04-18 16:34:30,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 160.0) internal successors, (960), 6 states have internal predecessors, (960), 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 16:34:30,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 208.0) internal successors, (1456), 7 states have internal predecessors, (1456), 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 16:34:30,795 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 208.0) internal successors, (1456), 7 states have internal predecessors, (1456), 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 16:34:30,795 INFO L186 Difference]: Start difference. First operand has 168 places, 169 transitions, 416 flow. Second operand 6 states and 960 transitions. [2022-04-18 16:34:30,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 208 transitions, 756 flow [2022-04-18 16:34:30,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 208 transitions, 749 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:34:30,800 INFO L242 Difference]: Finished difference. Result has 168 places, 168 transitions, 415 flow [2022-04-18 16:34:30,801 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=415, PETRI_PLACES=168, PETRI_TRANSITIONS=168} [2022-04-18 16:34:30,802 INFO L335 CegarLoopForPetriNet]: 192 programPoint places, -24 predicate places. [2022-04-18 16:34:30,802 INFO L478 AbstractCegarLoop]: Abstraction has has 168 places, 168 transitions, 415 flow [2022-04-18 16:34:30,803 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.16666666666666) internal successors, (925), 6 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:30,803 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:30,803 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] [2022-04-18 16:34:30,804 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:34:30,804 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2022-04-18 16:34:30,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:30,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1036305570, now seen corresponding path program 1 times [2022-04-18 16:34:30,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:30,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628251890] [2022-04-18 16:34:30,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:30,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:30,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:30,930 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 16:34:30,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:30,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628251890] [2022-04-18 16:34:30,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628251890] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:30,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:30,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:34:30,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484173654] [2022-04-18 16:34:30,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:30,933 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:34:30,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:30,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:34:30,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:34:30,935 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 208 [2022-04-18 16:34:30,936 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 168 transitions, 415 flow. Second operand has 6 states, 6 states have (on average 155.33333333333334) internal successors, (932), 6 states have internal predecessors, (932), 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 16:34:30,936 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:30,936 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 208 [2022-04-18 16:34:30,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:31,414 INFO L129 PetriNetUnfolder]: 2013/4460 cut-off events. [2022-04-18 16:34:31,414 INFO L130 PetriNetUnfolder]: For 2347/2832 co-relation queries the response was YES. [2022-04-18 16:34:31,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10150 conditions, 4460 events. 2013/4460 cut-off events. For 2347/2832 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 31690 event pairs, 710 based on Foata normal form. 16/3949 useless extension candidates. Maximal degree in co-relation 8343. Up to 2813 conditions per place. [2022-04-18 16:34:31,435 INFO L132 encePairwiseOnDemand]: 203/208 looper letters, 0 selfloop transitions, 0 changer transitions 175/175 dead transitions. [2022-04-18 16:34:31,435 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 175 transitions, 561 flow [2022-04-18 16:34:31,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:34:31,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:34:31,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 943 transitions. [2022-04-18 16:34:31,438 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7556089743589743 [2022-04-18 16:34:31,438 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 943 transitions. [2022-04-18 16:34:31,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 943 transitions. [2022-04-18 16:34:31,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:31,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 943 transitions. [2022-04-18 16:34:31,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 157.16666666666666) internal successors, (943), 6 states have internal predecessors, (943), 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 16:34:31,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 208.0) internal successors, (1456), 7 states have internal predecessors, (1456), 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 16:34:31,443 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 208.0) internal successors, (1456), 7 states have internal predecessors, (1456), 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 16:34:31,444 INFO L186 Difference]: Start difference. First operand has 168 places, 168 transitions, 415 flow. Second operand 6 states and 943 transitions. [2022-04-18 16:34:31,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 175 transitions, 561 flow [2022-04-18 16:34:31,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 175 transitions, 554 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:34:31,448 INFO L242 Difference]: Finished difference. Result has 168 places, 0 transitions, 0 flow [2022-04-18 16:34:31,448 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=168, PETRI_TRANSITIONS=0} [2022-04-18 16:34:31,449 INFO L335 CegarLoopForPetriNet]: 192 programPoint places, -24 predicate places. [2022-04-18 16:34:31,449 INFO L478 AbstractCegarLoop]: Abstraction has has 168 places, 0 transitions, 0 flow [2022-04-18 16:34:31,449 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.33333333333334) internal successors, (932), 6 states have internal predecessors, (932), 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 16:34:31,452 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (54 of 55 remaining) [2022-04-18 16:34:31,452 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (53 of 55 remaining) [2022-04-18 16:34:31,452 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (52 of 55 remaining) [2022-04-18 16:34:31,452 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (51 of 55 remaining) [2022-04-18 16:34:31,453 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (50 of 55 remaining) [2022-04-18 16:34:31,453 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (49 of 55 remaining) [2022-04-18 16:34:31,453 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (48 of 55 remaining) [2022-04-18 16:34:31,453 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (47 of 55 remaining) [2022-04-18 16:34:31,453 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (46 of 55 remaining) [2022-04-18 16:34:31,453 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (45 of 55 remaining) [2022-04-18 16:34:31,453 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (44 of 55 remaining) [2022-04-18 16:34:31,454 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (43 of 55 remaining) [2022-04-18 16:34:31,454 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (42 of 55 remaining) [2022-04-18 16:34:31,454 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (41 of 55 remaining) [2022-04-18 16:34:31,454 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (40 of 55 remaining) [2022-04-18 16:34:31,454 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (39 of 55 remaining) [2022-04-18 16:34:31,454 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (38 of 55 remaining) [2022-04-18 16:34:31,454 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (37 of 55 remaining) [2022-04-18 16:34:31,455 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (36 of 55 remaining) [2022-04-18 16:34:31,455 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (35 of 55 remaining) [2022-04-18 16:34:31,455 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 55 remaining) [2022-04-18 16:34:31,455 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 55 remaining) [2022-04-18 16:34:31,455 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 55 remaining) [2022-04-18 16:34:31,455 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 55 remaining) [2022-04-18 16:34:31,455 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 55 remaining) [2022-04-18 16:34:31,455 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (29 of 55 remaining) [2022-04-18 16:34:31,456 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 55 remaining) [2022-04-18 16:34:31,456 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (27 of 55 remaining) [2022-04-18 16:34:31,456 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 55 remaining) [2022-04-18 16:34:31,456 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (25 of 55 remaining) [2022-04-18 16:34:31,456 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (24 of 55 remaining) [2022-04-18 16:34:31,456 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (23 of 55 remaining) [2022-04-18 16:34:31,456 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 55 remaining) [2022-04-18 16:34:31,457 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 55 remaining) [2022-04-18 16:34:31,457 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 55 remaining) [2022-04-18 16:34:31,457 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (19 of 55 remaining) [2022-04-18 16:34:31,457 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (18 of 55 remaining) [2022-04-18 16:34:31,457 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (17 of 55 remaining) [2022-04-18 16:34:31,457 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (16 of 55 remaining) [2022-04-18 16:34:31,457 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (15 of 55 remaining) [2022-04-18 16:34:31,457 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (14 of 55 remaining) [2022-04-18 16:34:31,458 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (13 of 55 remaining) [2022-04-18 16:34:31,458 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (12 of 55 remaining) [2022-04-18 16:34:31,458 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (11 of 55 remaining) [2022-04-18 16:34:31,458 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 55 remaining) [2022-04-18 16:34:31,458 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 55 remaining) [2022-04-18 16:34:31,458 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 55 remaining) [2022-04-18 16:34:31,458 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 55 remaining) [2022-04-18 16:34:31,459 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (6 of 55 remaining) [2022-04-18 16:34:31,459 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (5 of 55 remaining) [2022-04-18 16:34:31,459 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (4 of 55 remaining) [2022-04-18 16:34:31,459 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (3 of 55 remaining) [2022-04-18 16:34:31,459 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (2 of 55 remaining) [2022-04-18 16:34:31,459 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (1 of 55 remaining) [2022-04-18 16:34:31,459 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (0 of 55 remaining) [2022-04-18 16:34:31,460 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:34:31,463 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:31,467 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:34:31,467 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:34:31,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:34:31 BasicIcfg [2022-04-18 16:34:31,470 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:34:31,471 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:34:31,471 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:34:31,471 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:34:31,471 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:34:26" (3/4) ... [2022-04-18 16:34:31,473 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:34:31,477 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:34:31,478 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:34:31,478 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-04-18 16:34:31,481 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-04-18 16:34:31,482 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 16:34:31,482 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:34:31,482 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:34:31,514 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:34:31,515 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:34:31,515 INFO L158 Benchmark]: Toolchain (without parser) took 6133.17ms. Allocated memory was 79.7MB in the beginning and 446.7MB in the end (delta: 367.0MB). Free memory was 41.4MB in the beginning and 201.6MB in the end (delta: -160.2MB). Peak memory consumption was 209.4MB. Max. memory is 16.1GB. [2022-04-18 16:34:31,516 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 79.7MB. Free memory was 57.6MB in the beginning and 57.5MB in the end (delta: 107.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:34:31,516 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.00ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 41.2MB in the beginning and 72.4MB in the end (delta: -31.2MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2022-04-18 16:34:31,516 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.40ms. Allocated memory is still 98.6MB. Free memory was 72.4MB in the beginning and 70.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:34:31,516 INFO L158 Benchmark]: Boogie Preprocessor took 24.03ms. Allocated memory is still 98.6MB. Free memory was 70.3MB in the beginning and 68.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:34:31,517 INFO L158 Benchmark]: RCFGBuilder took 521.65ms. Allocated memory is still 98.6MB. Free memory was 68.7MB in the beginning and 75.9MB in the end (delta: -7.2MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2022-04-18 16:34:31,518 INFO L158 Benchmark]: TraceAbstraction took 5288.08ms. Allocated memory was 98.6MB in the beginning and 446.7MB in the end (delta: 348.1MB). Free memory was 75.3MB in the beginning and 204.8MB in the end (delta: -129.5MB). Peak memory consumption was 253.4MB. Max. memory is 16.1GB. [2022-04-18 16:34:31,519 INFO L158 Benchmark]: Witness Printer took 44.17ms. Allocated memory is still 446.7MB. Free memory was 204.8MB in the beginning and 201.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:34:31,520 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 79.7MB. Free memory was 57.6MB in the beginning and 57.5MB in the end (delta: 107.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.00ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 41.2MB in the beginning and 72.4MB in the end (delta: -31.2MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.40ms. Allocated memory is still 98.6MB. Free memory was 72.4MB in the beginning and 70.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.03ms. Allocated memory is still 98.6MB. Free memory was 70.3MB in the beginning and 68.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 521.65ms. Allocated memory is still 98.6MB. Free memory was 68.7MB in the beginning and 75.9MB in the end (delta: -7.2MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5288.08ms. Allocated memory was 98.6MB in the beginning and 446.7MB in the end (delta: 348.1MB). Free memory was 75.3MB in the beginning and 204.8MB in the end (delta: -129.5MB). Peak memory consumption was 253.4MB. Max. memory is 16.1GB. * Witness Printer took 44.17ms. Allocated memory is still 446.7MB. Free memory was 204.8MB in the beginning and 201.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 101]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 107]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 107]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 107]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 107]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 107]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 112]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 113]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 114]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 262 locations, 55 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.1s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 151 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 151 mSDsluCounter, 128 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 251 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 736 IncrementalHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 128 mSDtfsCounter, 736 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=428occurred in iteration=8, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 773 NumberOfCodeBlocks, 773 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 760 ConstructedInterpolants, 0 QuantifiedInterpolants, 1023 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 32 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:34:31,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE