./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-3.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d 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 ../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 09:31:47,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 09:31:47,626 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 09:31:47,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 09:31:47,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 09:31:47,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 09:31:47,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 09:31:47,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 09:31:47,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 09:31:47,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 09:31:47,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 09:31:47,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 09:31:47,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 09:31:47,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 09:31:47,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 09:31:47,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 09:31:47,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 09:31:47,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 09:31:47,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 09:31:47,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 09:31:47,686 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 09:31:47,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 09:31:47,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 09:31:47,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 09:31:47,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 09:31:47,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 09:31:47,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 09:31:47,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 09:31:47,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 09:31:47,702 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 09:31:47,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 09:31:47,703 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 09:31:47,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 09:31:47,705 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 09:31:47,706 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 09:31:47,706 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 09:31:47,706 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 09:31:47,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 09:31:47,707 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 09:31:47,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 09:31:47,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 09:31:47,709 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 09:31:47,732 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 09:31:47,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 09:31:47,733 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 09:31:47,733 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 09:31:47,733 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 09:31:47,734 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 09:31:47,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 09:31:47,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 09:31:47,734 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 09:31:47,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 09:31:47,735 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 09:31:47,735 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 09:31:47,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 09:31:47,735 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 09:31:47,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 09:31:47,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 09:31:47,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 09:31:47,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 09:31:47,736 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 09:31:47,736 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 09:31:47,736 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 09:31:47,736 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 09:31:47,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 09:31:47,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 09:31:47,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 09:31:47,737 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 09:31:47,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:31:47,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 09:31:47,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 09:31:47,738 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 09:31:47,738 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 09:31:47,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 09:31:47,738 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 09:31:47,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 09:31:47,738 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 09:31:47,738 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 09:31:47,738 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 09:31:47,739 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 09:31:47,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 09:31:47,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 09:31:47,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 09:31:47,977 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 09:31:47,977 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 09:31:47,978 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-3.i [2023-08-30 09:31:48,893 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 09:31:49,050 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 09:31:49,050 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-3.i [2023-08-30 09:31:49,062 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74f53b5a0/5eeab011690744379cca1d70bff5b4ec/FLAG7178b9827 [2023-08-30 09:31:49,070 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74f53b5a0/5eeab011690744379cca1d70bff5b4ec [2023-08-30 09:31:49,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 09:31:49,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 09:31:49,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 09:31:49,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 09:31:49,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 09:31:49,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:31:49" (1/1) ... [2023-08-30 09:31:49,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40a08229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:31:49, skipping insertion in model container [2023-08-30 09:31:49,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:31:49" (1/1) ... [2023-08-30 09:31:49,086 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 09:31:49,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 09:31:49,232 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-3.i[818,831] [2023-08-30 09:31:49,499 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:31:49,507 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 09:31:49,514 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-3.i[818,831] [2023-08-30 09:31:49,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:31:49,619 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:31:49,620 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:31:49,625 INFO L208 MainTranslator]: Completed translation [2023-08-30 09:31:49,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:31:49 WrapperNode [2023-08-30 09:31:49,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 09:31:49,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 09:31:49,627 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 09:31:49,627 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 09:31:49,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:31:49" (1/1) ... [2023-08-30 09:31:49,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:31:49" (1/1) ... [2023-08-30 09:31:49,657 INFO L138 Inliner]: procedures = 365, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2023-08-30 09:31:49,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 09:31:49,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 09:31:49,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 09:31:49,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 09:31:49,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:31:49" (1/1) ... [2023-08-30 09:31:49,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:31:49" (1/1) ... [2023-08-30 09:31:49,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:31:49" (1/1) ... [2023-08-30 09:31:49,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:31:49" (1/1) ... [2023-08-30 09:31:49,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:31:49" (1/1) ... [2023-08-30 09:31:49,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:31:49" (1/1) ... [2023-08-30 09:31:49,671 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:31:49" (1/1) ... [2023-08-30 09:31:49,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:31:49" (1/1) ... [2023-08-30 09:31:49,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 09:31:49,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 09:31:49,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 09:31:49,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 09:31:49,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:31:49" (1/1) ... [2023-08-30 09:31:49,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:31:49,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:31:49,697 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) [2023-08-30 09:31:49,715 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 [2023-08-30 09:31:49,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 09:31:49,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 09:31:49,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 09:31:49,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 09:31:49,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 09:31:49,736 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2023-08-30 09:31:49,736 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2023-08-30 09:31:49,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 09:31:49,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 09:31:49,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 09:31:49,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 09:31:49,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 09:31:49,737 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 09:31:49,831 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 09:31:49,833 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 09:31:50,011 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 09:31:50,023 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 09:31:50,023 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-30 09:31:50,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:31:50 BoogieIcfgContainer [2023-08-30 09:31:50,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 09:31:50,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 09:31:50,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 09:31:50,028 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 09:31:50,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 09:31:49" (1/3) ... [2023-08-30 09:31:50,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707e4931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:31:50, skipping insertion in model container [2023-08-30 09:31:50,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:31:49" (2/3) ... [2023-08-30 09:31:50,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707e4931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:31:50, skipping insertion in model container [2023-08-30 09:31:50,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:31:50" (3/3) ... [2023-08-30 09:31:50,030 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2023-08-30 09:31:50,036 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 09:31:50,042 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 09:31:50,042 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 09:31:50,042 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 09:31:50,103 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 09:31:50,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 98 transitions, 204 flow [2023-08-30 09:31:50,196 INFO L130 PetriNetUnfolder]: 7/97 cut-off events. [2023-08-30 09:31:50,197 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 09:31:50,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 97 events. 7/97 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 120 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-08-30 09:31:50,201 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 98 transitions, 204 flow [2023-08-30 09:31:50,203 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 77 transitions, 157 flow [2023-08-30 09:31:50,205 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 09:31:50,211 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 77 transitions, 157 flow [2023-08-30 09:31:50,214 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 77 transitions, 157 flow [2023-08-30 09:31:50,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 77 transitions, 157 flow [2023-08-30 09:31:50,226 INFO L130 PetriNetUnfolder]: 5/77 cut-off events. [2023-08-30 09:31:50,226 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:31:50,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 5/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-08-30 09:31:50,227 INFO L119 LiptonReduction]: Number of co-enabled transitions 1344 [2023-08-30 09:31:51,771 INFO L134 LiptonReduction]: Checked pairs total: 1381 [2023-08-30 09:31:51,772 INFO L136 LiptonReduction]: Total number of compositions: 78 [2023-08-30 09:31:51,781 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 09:31:51,786 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3bdb5ba8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 09:31:51,800 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-08-30 09:31:51,803 INFO L130 PetriNetUnfolder]: 1/5 cut-off events. [2023-08-30 09:31:51,803 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:31:51,803 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:31:51,804 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 09:31:51,804 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:31:51,807 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:31:51,807 INFO L85 PathProgramCache]: Analyzing trace with hash 11221162, now seen corresponding path program 1 times [2023-08-30 09:31:51,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:31:51,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12848931] [2023-08-30 09:31:51,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:51,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:31:51,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:52,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:52,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:31:52,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12848931] [2023-08-30 09:31:52,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12848931] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:31:52,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:31:52,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:31:52,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863733878] [2023-08-30 09:31:52,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:31:52,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:31:52,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:31:52,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:31:52,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:31:52,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 176 [2023-08-30 09:31:52,140 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 17 transitions, 37 flow. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:52,140 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:31:52,140 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 176 [2023-08-30 09:31:52,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:31:52,175 INFO L130 PetriNetUnfolder]: 70/130 cut-off events. [2023-08-30 09:31:52,175 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:31:52,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 130 events. 70/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 453 event pairs, 12 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 256. Up to 112 conditions per place. [2023-08-30 09:31:52,177 INFO L137 encePairwiseOnDemand]: 165/176 looper letters, 20 selfloop transitions, 6 changer transitions 0/26 dead transitions. [2023-08-30 09:31:52,177 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 26 transitions, 107 flow [2023-08-30 09:31:52,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:31:52,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:31:52,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 281 transitions. [2023-08-30 09:31:52,186 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5321969696969697 [2023-08-30 09:31:52,186 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 281 transitions. [2023-08-30 09:31:52,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 281 transitions. [2023-08-30 09:31:52,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:31:52,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 281 transitions. [2023-08-30 09:31:52,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:52,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:52,194 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:52,195 INFO L175 Difference]: Start difference. First operand has 19 places, 17 transitions, 37 flow. Second operand 3 states and 281 transitions. [2023-08-30 09:31:52,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 26 transitions, 107 flow [2023-08-30 09:31:52,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 26 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:31:52,198 INFO L231 Difference]: Finished difference. Result has 20 places, 21 transitions, 80 flow [2023-08-30 09:31:52,199 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=20, PETRI_TRANSITIONS=21} [2023-08-30 09:31:52,201 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 1 predicate places. [2023-08-30 09:31:52,201 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 21 transitions, 80 flow [2023-08-30 09:31:52,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:52,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:31:52,202 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 09:31:52,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 09:31:52,202 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:31:52,203 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:31:52,203 INFO L85 PathProgramCache]: Analyzing trace with hash 347874172, now seen corresponding path program 1 times [2023-08-30 09:31:52,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:31:52,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976651792] [2023-08-30 09:31:52,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:52,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:31:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:52,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:52,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:31:52,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976651792] [2023-08-30 09:31:52,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976651792] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:31:52,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187200247] [2023-08-30 09:31:52,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:52,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:31:52,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:31:52,258 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:31:52,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-30 09:31:52,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:52,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 09:31:52,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:31:52,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:52,337 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 09:31:52,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187200247] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:31:52,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 09:31:52,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-08-30 09:31:52,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784310275] [2023-08-30 09:31:52,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:31:52,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 09:31:52,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:31:52,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 09:31:52,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:31:52,347 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 176 [2023-08-30 09:31:52,348 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 21 transitions, 80 flow. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:52,348 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:31:52,348 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 176 [2023-08-30 09:31:52,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:31:52,420 INFO L130 PetriNetUnfolder]: 86/159 cut-off events. [2023-08-30 09:31:52,421 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-30 09:31:52,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 159 events. 86/159 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 584 event pairs, 10 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 425. Up to 99 conditions per place. [2023-08-30 09:31:52,422 INFO L137 encePairwiseOnDemand]: 172/176 looper letters, 41 selfloop transitions, 4 changer transitions 0/45 dead transitions. [2023-08-30 09:31:52,422 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 45 transitions, 257 flow [2023-08-30 09:31:52,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 09:31:52,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 09:31:52,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 361 transitions. [2023-08-30 09:31:52,438 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5127840909090909 [2023-08-30 09:31:52,439 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 361 transitions. [2023-08-30 09:31:52,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 361 transitions. [2023-08-30 09:31:52,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:31:52,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 361 transitions. [2023-08-30 09:31:52,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:52,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:52,442 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:52,442 INFO L175 Difference]: Start difference. First operand has 20 places, 21 transitions, 80 flow. Second operand 4 states and 361 transitions. [2023-08-30 09:31:52,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 45 transitions, 257 flow [2023-08-30 09:31:52,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 45 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:31:52,443 INFO L231 Difference]: Finished difference. Result has 22 places, 21 transitions, 88 flow [2023-08-30 09:31:52,443 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=88, PETRI_PLACES=22, PETRI_TRANSITIONS=21} [2023-08-30 09:31:52,444 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 3 predicate places. [2023-08-30 09:31:52,444 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 21 transitions, 88 flow [2023-08-30 09:31:52,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:52,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:31:52,445 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 09:31:52,466 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-30 09:31:52,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:31:52,646 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:31:52,646 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:31:52,646 INFO L85 PathProgramCache]: Analyzing trace with hash 347874140, now seen corresponding path program 1 times [2023-08-30 09:31:52,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:31:52,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274399745] [2023-08-30 09:31:52,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:52,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:31:52,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:52,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:52,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:31:52,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274399745] [2023-08-30 09:31:52,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274399745] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:31:52,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701901389] [2023-08-30 09:31:52,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:52,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:31:52,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:31:52,735 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:31:52,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-30 09:31:52,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:52,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-30 09:31:52,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:31:52,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:52,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:31:52,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:52,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701901389] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:31:52,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:31:52,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-08-30 09:31:52,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012506536] [2023-08-30 09:31:52,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:31:52,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 09:31:52,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:31:52,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 09:31:52,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-30 09:31:52,823 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 176 [2023-08-30 09:31:52,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 21 transitions, 88 flow. Second operand has 7 states, 7 states have (on average 85.0) internal successors, (595), 7 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:52,824 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:31:52,824 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 176 [2023-08-30 09:31:52,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:31:52,901 INFO L130 PetriNetUnfolder]: 143/262 cut-off events. [2023-08-30 09:31:52,901 INFO L131 PetriNetUnfolder]: For 81/81 co-relation queries the response was YES. [2023-08-30 09:31:52,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 798 conditions, 262 events. 143/262 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 995 event pairs, 10 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 786. Up to 164 conditions per place. [2023-08-30 09:31:52,903 INFO L137 encePairwiseOnDemand]: 166/176 looper letters, 40 selfloop transitions, 32 changer transitions 0/72 dead transitions. [2023-08-30 09:31:52,903 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 72 transitions, 426 flow [2023-08-30 09:31:52,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 09:31:52,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 09:31:52,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 655 transitions. [2023-08-30 09:31:52,906 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5316558441558441 [2023-08-30 09:31:52,906 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 655 transitions. [2023-08-30 09:31:52,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 655 transitions. [2023-08-30 09:31:52,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:31:52,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 655 transitions. [2023-08-30 09:31:52,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 93.57142857142857) internal successors, (655), 7 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:52,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 176.0) internal successors, (1408), 8 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:52,910 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 176.0) internal successors, (1408), 8 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:52,910 INFO L175 Difference]: Start difference. First operand has 22 places, 21 transitions, 88 flow. Second operand 7 states and 655 transitions. [2023-08-30 09:31:52,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 72 transitions, 426 flow [2023-08-30 09:31:52,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 72 transitions, 422 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:31:52,912 INFO L231 Difference]: Finished difference. Result has 32 places, 48 transitions, 362 flow [2023-08-30 09:31:52,912 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=362, PETRI_PLACES=32, PETRI_TRANSITIONS=48} [2023-08-30 09:31:52,913 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 13 predicate places. [2023-08-30 09:31:52,913 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 48 transitions, 362 flow [2023-08-30 09:31:52,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 85.0) internal successors, (595), 7 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:52,914 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:31:52,914 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 09:31:52,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-30 09:31:53,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-08-30 09:31:53,118 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_function_dataraceErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:31:53,119 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:31:53,119 INFO L85 PathProgramCache]: Analyzing trace with hash 347856696, now seen corresponding path program 1 times [2023-08-30 09:31:53,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:31:53,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101850545] [2023-08-30 09:31:53,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:53,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:31:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:53,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:53,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:31:53,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101850545] [2023-08-30 09:31:53,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101850545] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:31:53,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:31:53,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 09:31:53,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914646887] [2023-08-30 09:31:53,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:31:53,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:31:53,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:31:53,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:31:53,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:31:53,157 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 176 [2023-08-30 09:31:53,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 48 transitions, 362 flow. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:53,158 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:31:53,158 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 176 [2023-08-30 09:31:53,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:31:53,207 INFO L130 PetriNetUnfolder]: 138/276 cut-off events. [2023-08-30 09:31:53,207 INFO L131 PetriNetUnfolder]: For 477/477 co-relation queries the response was YES. [2023-08-30 09:31:53,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1259 conditions, 276 events. 138/276 cut-off events. For 477/477 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1225 event pairs, 24 based on Foata normal form. 13/263 useless extension candidates. Maximal degree in co-relation 1241. Up to 186 conditions per place. [2023-08-30 09:31:53,209 INFO L137 encePairwiseOnDemand]: 171/176 looper letters, 58 selfloop transitions, 7 changer transitions 0/65 dead transitions. [2023-08-30 09:31:53,209 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 65 transitions, 625 flow [2023-08-30 09:31:53,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:31:53,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:31:53,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2023-08-30 09:31:53,210 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5170454545454546 [2023-08-30 09:31:53,211 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 273 transitions. [2023-08-30 09:31:53,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 273 transitions. [2023-08-30 09:31:53,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:31:53,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 273 transitions. [2023-08-30 09:31:53,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:53,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:53,213 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:53,213 INFO L175 Difference]: Start difference. First operand has 32 places, 48 transitions, 362 flow. Second operand 3 states and 273 transitions. [2023-08-30 09:31:53,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 65 transitions, 625 flow [2023-08-30 09:31:53,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 65 transitions, 555 flow, removed 33 selfloop flow, removed 1 redundant places. [2023-08-30 09:31:53,218 INFO L231 Difference]: Finished difference. Result has 34 places, 45 transitions, 328 flow [2023-08-30 09:31:53,218 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=328, PETRI_PLACES=34, PETRI_TRANSITIONS=45} [2023-08-30 09:31:53,219 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 15 predicate places. [2023-08-30 09:31:53,219 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 45 transitions, 328 flow [2023-08-30 09:31:53,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:53,219 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:31:53,219 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-30 09:31:53,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 09:31:53,220 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:31:53,220 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:31:53,220 INFO L85 PathProgramCache]: Analyzing trace with hash -2100802233, now seen corresponding path program 1 times [2023-08-30 09:31:53,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:31:53,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975256751] [2023-08-30 09:31:53,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:53,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:31:53,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:53,260 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 09:31:53,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:31:53,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975256751] [2023-08-30 09:31:53,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975256751] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:31:53,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:31:53,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 09:31:53,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793956280] [2023-08-30 09:31:53,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:31:53,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:31:53,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:31:53,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:31:53,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:31:53,280 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 176 [2023-08-30 09:31:53,280 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 45 transitions, 328 flow. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:53,280 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:31:53,280 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 176 [2023-08-30 09:31:53,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:31:53,317 INFO L130 PetriNetUnfolder]: 126/265 cut-off events. [2023-08-30 09:31:53,317 INFO L131 PetriNetUnfolder]: For 518/518 co-relation queries the response was YES. [2023-08-30 09:31:53,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1238 conditions, 265 events. 126/265 cut-off events. For 518/518 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1152 event pairs, 26 based on Foata normal form. 38/269 useless extension candidates. Maximal degree in co-relation 1219. Up to 141 conditions per place. [2023-08-30 09:31:53,319 INFO L137 encePairwiseOnDemand]: 167/176 looper letters, 33 selfloop transitions, 20 changer transitions 0/53 dead transitions. [2023-08-30 09:31:53,319 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 53 transitions, 495 flow [2023-08-30 09:31:53,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:31:53,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:31:53,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 276 transitions. [2023-08-30 09:31:53,320 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5227272727272727 [2023-08-30 09:31:53,320 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 276 transitions. [2023-08-30 09:31:53,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 276 transitions. [2023-08-30 09:31:53,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:31:53,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 276 transitions. [2023-08-30 09:31:53,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:53,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:53,322 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:53,322 INFO L175 Difference]: Start difference. First operand has 34 places, 45 transitions, 328 flow. Second operand 3 states and 276 transitions. [2023-08-30 09:31:53,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 53 transitions, 495 flow [2023-08-30 09:31:53,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 53 transitions, 489 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:31:53,326 INFO L231 Difference]: Finished difference. Result has 37 places, 47 transitions, 458 flow [2023-08-30 09:31:53,326 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=458, PETRI_PLACES=37, PETRI_TRANSITIONS=47} [2023-08-30 09:31:53,326 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 18 predicate places. [2023-08-30 09:31:53,327 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 47 transitions, 458 flow [2023-08-30 09:31:53,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:53,327 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:31:53,327 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 09:31:53,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 09:31:53,327 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:31:53,328 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:31:53,328 INFO L85 PathProgramCache]: Analyzing trace with hash -2101343042, now seen corresponding path program 1 times [2023-08-30 09:31:53,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:31:53,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082993225] [2023-08-30 09:31:53,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:53,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:31:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:53,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:53,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:31:53,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082993225] [2023-08-30 09:31:53,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082993225] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:31:53,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625005542] [2023-08-30 09:31:53,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:53,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:31:53,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:31:53,360 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:31:53,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-30 09:31:53,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:53,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-30 09:31:53,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:31:53,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:53,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:31:53,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:53,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625005542] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:31:53,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:31:53,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-30 09:31:53,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269944446] [2023-08-30 09:31:53,433 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:31:53,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 09:31:53,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:31:53,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 09:31:53,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-30 09:31:53,463 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 176 [2023-08-30 09:31:53,464 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 47 transitions, 458 flow. Second operand has 9 states, 9 states have (on average 78.77777777777777) internal successors, (709), 9 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:53,464 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:31:53,464 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 176 [2023-08-30 09:31:53,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:31:53,642 INFO L130 PetriNetUnfolder]: 260/517 cut-off events. [2023-08-30 09:31:53,643 INFO L131 PetriNetUnfolder]: For 1765/1765 co-relation queries the response was YES. [2023-08-30 09:31:53,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2746 conditions, 517 events. 260/517 cut-off events. For 1765/1765 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 2583 event pairs, 9 based on Foata normal form. 36/479 useless extension candidates. Maximal degree in co-relation 2724. Up to 198 conditions per place. [2023-08-30 09:31:53,646 INFO L137 encePairwiseOnDemand]: 166/176 looper letters, 70 selfloop transitions, 86 changer transitions 0/156 dead transitions. [2023-08-30 09:31:53,646 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 156 transitions, 1605 flow [2023-08-30 09:31:53,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 09:31:53,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 09:31:53,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1514 transitions. [2023-08-30 09:31:53,649 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4779040404040404 [2023-08-30 09:31:53,649 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1514 transitions. [2023-08-30 09:31:53,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1514 transitions. [2023-08-30 09:31:53,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:31:53,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1514 transitions. [2023-08-30 09:31:53,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 84.11111111111111) internal successors, (1514), 18 states have internal predecessors, (1514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:53,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 176.0) internal successors, (3344), 19 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:53,655 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 176.0) internal successors, (3344), 19 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:53,655 INFO L175 Difference]: Start difference. First operand has 37 places, 47 transitions, 458 flow. Second operand 18 states and 1514 transitions. [2023-08-30 09:31:53,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 156 transitions, 1605 flow [2023-08-30 09:31:53,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 156 transitions, 1469 flow, removed 24 selfloop flow, removed 2 redundant places. [2023-08-30 09:31:53,662 INFO L231 Difference]: Finished difference. Result has 59 places, 112 transitions, 1256 flow [2023-08-30 09:31:53,662 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1256, PETRI_PLACES=59, PETRI_TRANSITIONS=112} [2023-08-30 09:31:53,663 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 40 predicate places. [2023-08-30 09:31:53,663 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 112 transitions, 1256 flow [2023-08-30 09:31:53,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 78.77777777777777) internal successors, (709), 9 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:53,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:31:53,663 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 09:31:53,685 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-08-30 09:31:53,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:31:53,868 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:31:53,868 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:31:53,868 INFO L85 PathProgramCache]: Analyzing trace with hash -2101343043, now seen corresponding path program 1 times [2023-08-30 09:31:53,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:31:53,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32089388] [2023-08-30 09:31:53,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:53,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:31:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:53,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:53,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:31:53,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32089388] [2023-08-30 09:31:53,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32089388] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:31:53,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552234389] [2023-08-30 09:31:53,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:53,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:31:53,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:31:53,907 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:31:53,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-30 09:31:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:53,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-30 09:31:53,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:31:53,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:53,975 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 09:31:53,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552234389] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:31:53,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 09:31:53,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-08-30 09:31:53,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512420347] [2023-08-30 09:31:53,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:31:53,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 09:31:53,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:31:53,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 09:31:53,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-30 09:31:53,998 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 176 [2023-08-30 09:31:53,999 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 112 transitions, 1256 flow. Second operand has 5 states, 5 states have (on average 80.2) internal successors, (401), 5 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:53,999 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:31:53,999 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 176 [2023-08-30 09:31:53,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:31:54,059 INFO L130 PetriNetUnfolder]: 209/393 cut-off events. [2023-08-30 09:31:54,059 INFO L131 PetriNetUnfolder]: For 1473/1473 co-relation queries the response was YES. [2023-08-30 09:31:54,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2371 conditions, 393 events. 209/393 cut-off events. For 1473/1473 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1656 event pairs, 20 based on Foata normal form. 40/379 useless extension candidates. Maximal degree in co-relation 2342. Up to 350 conditions per place. [2023-08-30 09:31:54,062 INFO L137 encePairwiseOnDemand]: 169/176 looper letters, 87 selfloop transitions, 10 changer transitions 0/97 dead transitions. [2023-08-30 09:31:54,062 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 97 transitions, 1294 flow [2023-08-30 09:31:54,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 09:31:54,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 09:31:54,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 503 transitions. [2023-08-30 09:31:54,063 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47632575757575757 [2023-08-30 09:31:54,063 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 503 transitions. [2023-08-30 09:31:54,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 503 transitions. [2023-08-30 09:31:54,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:31:54,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 503 transitions. [2023-08-30 09:31:54,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 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) [2023-08-30 09:31:54,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:54,066 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:54,066 INFO L175 Difference]: Start difference. First operand has 59 places, 112 transitions, 1256 flow. Second operand 6 states and 503 transitions. [2023-08-30 09:31:54,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 97 transitions, 1294 flow [2023-08-30 09:31:54,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 97 transitions, 1242 flow, removed 24 selfloop flow, removed 2 redundant places. [2023-08-30 09:31:54,074 INFO L231 Difference]: Finished difference. Result has 57 places, 88 transitions, 1008 flow [2023-08-30 09:31:54,074 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=956, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1008, PETRI_PLACES=57, PETRI_TRANSITIONS=88} [2023-08-30 09:31:54,074 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 38 predicate places. [2023-08-30 09:31:54,074 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 88 transitions, 1008 flow [2023-08-30 09:31:54,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.2) internal successors, (401), 5 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:54,075 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:31:54,075 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2023-08-30 09:31:54,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-30 09:31:54,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:31:54,279 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread_function_dataraceErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:31:54,280 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:31:54,280 INFO L85 PathProgramCache]: Analyzing trace with hash -717124171, now seen corresponding path program 1 times [2023-08-30 09:31:54,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:31:54,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516725314] [2023-08-30 09:31:54,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:54,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:31:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:54,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 09:31:54,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:31:54,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516725314] [2023-08-30 09:31:54,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516725314] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:31:54,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:31:54,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 09:31:54,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468595789] [2023-08-30 09:31:54,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:31:54,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:31:54,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:31:54,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:31:54,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:31:54,319 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 176 [2023-08-30 09:31:54,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 88 transitions, 1008 flow. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:54,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:31:54,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 176 [2023-08-30 09:31:54,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:31:54,378 INFO L130 PetriNetUnfolder]: 182/348 cut-off events. [2023-08-30 09:31:54,378 INFO L131 PetriNetUnfolder]: For 1522/1522 co-relation queries the response was YES. [2023-08-30 09:31:54,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2052 conditions, 348 events. 182/348 cut-off events. For 1522/1522 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1475 event pairs, 26 based on Foata normal form. 0/321 useless extension candidates. Maximal degree in co-relation 2022. Up to 190 conditions per place. [2023-08-30 09:31:54,381 INFO L137 encePairwiseOnDemand]: 171/176 looper letters, 67 selfloop transitions, 30 changer transitions 0/97 dead transitions. [2023-08-30 09:31:54,381 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 97 transitions, 1278 flow [2023-08-30 09:31:54,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:31:54,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:31:54,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2023-08-30 09:31:54,382 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4962121212121212 [2023-08-30 09:31:54,382 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 262 transitions. [2023-08-30 09:31:54,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 262 transitions. [2023-08-30 09:31:54,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:31:54,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 262 transitions. [2023-08-30 09:31:54,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:54,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:54,384 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:54,384 INFO L175 Difference]: Start difference. First operand has 57 places, 88 transitions, 1008 flow. Second operand 3 states and 262 transitions. [2023-08-30 09:31:54,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 97 transitions, 1278 flow [2023-08-30 09:31:54,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 97 transitions, 1236 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 09:31:54,390 INFO L231 Difference]: Finished difference. Result has 54 places, 81 transitions, 938 flow [2023-08-30 09:31:54,390 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=878, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=938, PETRI_PLACES=54, PETRI_TRANSITIONS=81} [2023-08-30 09:31:54,390 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 35 predicate places. [2023-08-30 09:31:54,391 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 81 transitions, 938 flow [2023-08-30 09:31:54,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:54,391 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:31:54,391 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2023-08-30 09:31:54,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 09:31:54,391 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread_function_dataraceErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:31:54,392 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:31:54,392 INFO L85 PathProgramCache]: Analyzing trace with hash -717124188, now seen corresponding path program 1 times [2023-08-30 09:31:54,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:31:54,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844732622] [2023-08-30 09:31:54,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:54,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:31:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:54,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:54,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:31:54,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844732622] [2023-08-30 09:31:54,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844732622] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:31:54,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:31:54,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 09:31:54,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437966071] [2023-08-30 09:31:54,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:31:54,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:31:54,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:31:54,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:31:54,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:31:54,416 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 176 [2023-08-30 09:31:54,417 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 81 transitions, 938 flow. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:54,417 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:31:54,417 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 176 [2023-08-30 09:31:54,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:31:54,448 INFO L130 PetriNetUnfolder]: 155/303 cut-off events. [2023-08-30 09:31:54,449 INFO L131 PetriNetUnfolder]: For 1733/1733 co-relation queries the response was YES. [2023-08-30 09:31:54,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1824 conditions, 303 events. 155/303 cut-off events. For 1733/1733 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1251 event pairs, 18 based on Foata normal form. 27/330 useless extension candidates. Maximal degree in co-relation 1796. Up to 289 conditions per place. [2023-08-30 09:31:54,450 INFO L137 encePairwiseOnDemand]: 174/176 looper letters, 82 selfloop transitions, 1 changer transitions 0/83 dead transitions. [2023-08-30 09:31:54,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 83 transitions, 1106 flow [2023-08-30 09:31:54,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:31:54,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:31:54,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2023-08-30 09:31:54,451 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4962121212121212 [2023-08-30 09:31:54,452 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 262 transitions. [2023-08-30 09:31:54,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 262 transitions. [2023-08-30 09:31:54,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:31:54,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 262 transitions. [2023-08-30 09:31:54,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:54,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:54,453 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:54,453 INFO L175 Difference]: Start difference. First operand has 54 places, 81 transitions, 938 flow. Second operand 3 states and 262 transitions. [2023-08-30 09:31:54,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 83 transitions, 1106 flow [2023-08-30 09:31:54,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 83 transitions, 1076 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:31:54,458 INFO L231 Difference]: Finished difference. Result has 54 places, 74 transitions, 824 flow [2023-08-30 09:31:54,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=824, PETRI_PLACES=54, PETRI_TRANSITIONS=74} [2023-08-30 09:31:54,459 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 35 predicate places. [2023-08-30 09:31:54,459 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 74 transitions, 824 flow [2023-08-30 09:31:54,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:54,459 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:31:54,459 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1] [2023-08-30 09:31:54,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 09:31:54,459 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:31:54,460 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:31:54,460 INFO L85 PathProgramCache]: Analyzing trace with hash -236273720, now seen corresponding path program 2 times [2023-08-30 09:31:54,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:31:54,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769480525] [2023-08-30 09:31:54,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:54,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:31:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:54,497 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:54,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:31:54,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769480525] [2023-08-30 09:31:54,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769480525] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:31:54,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658044360] [2023-08-30 09:31:54,498 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 09:31:54,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:31:54,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:31:54,499 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:31:54,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-30 09:31:54,545 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-30 09:31:54,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 09:31:54,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-30 09:31:54,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:31:54,557 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:54,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:31:54,600 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:54,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658044360] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:31:54,601 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:31:54,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-08-30 09:31:54,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725504980] [2023-08-30 09:31:54,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:31:54,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 09:31:54,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:31:54,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 09:31:54,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-30 09:31:54,618 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 176 [2023-08-30 09:31:54,619 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 74 transitions, 824 flow. Second operand has 13 states, 13 states have (on average 84.53846153846153) internal successors, (1099), 13 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:54,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:31:54,619 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 176 [2023-08-30 09:31:54,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:31:54,697 INFO L130 PetriNetUnfolder]: 227/447 cut-off events. [2023-08-30 09:31:54,698 INFO L131 PetriNetUnfolder]: For 2747/2747 co-relation queries the response was YES. [2023-08-30 09:31:54,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2619 conditions, 447 events. 227/447 cut-off events. For 2747/2747 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1818 event pairs, 31 based on Foata normal form. 42/489 useless extension candidates. Maximal degree in co-relation 2590. Up to 262 conditions per place. [2023-08-30 09:31:54,700 INFO L137 encePairwiseOnDemand]: 170/176 looper letters, 66 selfloop transitions, 85 changer transitions 0/151 dead transitions. [2023-08-30 09:31:54,701 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 151 transitions, 1868 flow [2023-08-30 09:31:54,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 09:31:54,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 09:31:54,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1071 transitions. [2023-08-30 09:31:54,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5071022727272727 [2023-08-30 09:31:54,703 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1071 transitions. [2023-08-30 09:31:54,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1071 transitions. [2023-08-30 09:31:54,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:31:54,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1071 transitions. [2023-08-30 09:31:54,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 89.25) internal successors, (1071), 12 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:54,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 176.0) internal successors, (2288), 13 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:54,707 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 176.0) internal successors, (2288), 13 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:54,708 INFO L175 Difference]: Start difference. First operand has 54 places, 74 transitions, 824 flow. Second operand 12 states and 1071 transitions. [2023-08-30 09:31:54,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 151 transitions, 1868 flow [2023-08-30 09:31:54,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 151 transitions, 1857 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:31:54,714 INFO L231 Difference]: Finished difference. Result has 71 places, 123 transitions, 1741 flow [2023-08-30 09:31:54,714 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=823, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1741, PETRI_PLACES=71, PETRI_TRANSITIONS=123} [2023-08-30 09:31:54,715 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 52 predicate places. [2023-08-30 09:31:54,715 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 123 transitions, 1741 flow [2023-08-30 09:31:54,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 84.53846153846153) internal successors, (1099), 13 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:54,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:31:54,716 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:31:54,729 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-08-30 09:31:54,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-08-30 09:31:54,921 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:31:54,921 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:31:54,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1470633633, now seen corresponding path program 1 times [2023-08-30 09:31:54,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:31:54,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287691114] [2023-08-30 09:31:54,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:54,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:31:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:54,968 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:54,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:31:54,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287691114] [2023-08-30 09:31:54,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287691114] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:31:54,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787512499] [2023-08-30 09:31:54,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:54,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:31:54,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:31:54,970 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:31:54,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-30 09:31:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:55,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-30 09:31:55,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:31:55,031 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:55,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:31:55,075 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:55,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787512499] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:31:55,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:31:55,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-08-30 09:31:55,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088090700] [2023-08-30 09:31:55,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:31:55,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-30 09:31:55,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:31:55,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-30 09:31:55,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=127, Unknown=0, NotChecked=0, Total=210 [2023-08-30 09:31:55,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 176 [2023-08-30 09:31:55,112 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 123 transitions, 1741 flow. Second operand has 15 states, 15 states have (on average 79.66666666666667) internal successors, (1195), 15 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:55,112 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:31:55,112 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 176 [2023-08-30 09:31:55,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:31:55,421 INFO L130 PetriNetUnfolder]: 347/686 cut-off events. [2023-08-30 09:31:55,422 INFO L131 PetriNetUnfolder]: For 8543/8543 co-relation queries the response was YES. [2023-08-30 09:31:55,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4621 conditions, 686 events. 347/686 cut-off events. For 8543/8543 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3235 event pairs, 12 based on Foata normal form. 68/754 useless extension candidates. Maximal degree in co-relation 4584. Up to 297 conditions per place. [2023-08-30 09:31:55,427 INFO L137 encePairwiseOnDemand]: 170/176 looper letters, 99 selfloop transitions, 180 changer transitions 0/279 dead transitions. [2023-08-30 09:31:55,427 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 279 transitions, 3866 flow [2023-08-30 09:31:55,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-08-30 09:31:55,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2023-08-30 09:31:55,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 2758 transitions. [2023-08-30 09:31:55,433 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.474862258953168 [2023-08-30 09:31:55,433 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 2758 transitions. [2023-08-30 09:31:55,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 2758 transitions. [2023-08-30 09:31:55,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:31:55,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 2758 transitions. [2023-08-30 09:31:55,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 83.57575757575758) internal successors, (2758), 33 states have internal predecessors, (2758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:55,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 176.0) internal successors, (5984), 34 states have internal predecessors, (5984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:55,462 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 176.0) internal successors, (5984), 34 states have internal predecessors, (5984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:55,462 INFO L175 Difference]: Start difference. First operand has 71 places, 123 transitions, 1741 flow. Second operand 33 states and 2758 transitions. [2023-08-30 09:31:55,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 279 transitions, 3866 flow [2023-08-30 09:31:55,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 279 transitions, 3701 flow, removed 73 selfloop flow, removed 3 redundant places. [2023-08-30 09:31:55,478 INFO L231 Difference]: Finished difference. Result has 118 places, 206 transitions, 3410 flow [2023-08-30 09:31:55,478 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=1606, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=3410, PETRI_PLACES=118, PETRI_TRANSITIONS=206} [2023-08-30 09:31:55,478 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 99 predicate places. [2023-08-30 09:31:55,479 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 206 transitions, 3410 flow [2023-08-30 09:31:55,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 79.66666666666667) internal successors, (1195), 15 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:55,479 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:31:55,479 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2023-08-30 09:31:55,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-30 09:31:55,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:31:55,684 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:31:55,684 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:31:55,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1338366197, now seen corresponding path program 1 times [2023-08-30 09:31:55,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:31:55,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048772609] [2023-08-30 09:31:55,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:55,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:31:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:55,739 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:55,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:31:55,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048772609] [2023-08-30 09:31:55,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048772609] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:31:55,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609658501] [2023-08-30 09:31:55,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:55,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:31:55,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:31:55,741 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:31:55,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-30 09:31:55,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:55,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-30 09:31:55,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:31:55,821 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:55,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:31:55,872 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:55,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609658501] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:31:55,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:31:55,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-08-30 09:31:55,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931811604] [2023-08-30 09:31:55,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:31:55,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-30 09:31:55,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:31:55,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-30 09:31:55,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2023-08-30 09:31:55,901 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 176 [2023-08-30 09:31:55,902 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 206 transitions, 3410 flow. Second operand has 15 states, 15 states have (on average 78.66666666666667) internal successors, (1180), 15 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:55,902 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:31:55,902 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 176 [2023-08-30 09:31:55,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:31:56,325 INFO L130 PetriNetUnfolder]: 631/1248 cut-off events. [2023-08-30 09:31:56,325 INFO L131 PetriNetUnfolder]: For 32639/32639 co-relation queries the response was YES. [2023-08-30 09:31:56,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10048 conditions, 1248 events. 631/1248 cut-off events. For 32639/32639 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 7037 event pairs, 9 based on Foata normal form. 62/1310 useless extension candidates. Maximal degree in co-relation 9992. Up to 539 conditions per place. [2023-08-30 09:31:56,335 INFO L137 encePairwiseOnDemand]: 170/176 looper letters, 159 selfloop transitions, 303 changer transitions 0/462 dead transitions. [2023-08-30 09:31:56,335 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 462 transitions, 7913 flow [2023-08-30 09:31:56,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-08-30 09:31:56,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2023-08-30 09:31:56,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 2890 transitions. [2023-08-30 09:31:56,340 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46915584415584416 [2023-08-30 09:31:56,340 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 2890 transitions. [2023-08-30 09:31:56,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 2890 transitions. [2023-08-30 09:31:56,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:31:56,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 2890 transitions. [2023-08-30 09:31:56,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 82.57142857142857) internal successors, (2890), 35 states have internal predecessors, (2890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:56,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 176.0) internal successors, (6336), 36 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:56,351 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 176.0) internal successors, (6336), 36 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:56,351 INFO L175 Difference]: Start difference. First operand has 118 places, 206 transitions, 3410 flow. Second operand 35 states and 2890 transitions. [2023-08-30 09:31:56,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 462 transitions, 7913 flow [2023-08-30 09:31:56,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 462 transitions, 7300 flow, removed 268 selfloop flow, removed 10 redundant places. [2023-08-30 09:31:56,406 INFO L231 Difference]: Finished difference. Result has 159 places, 367 transitions, 6696 flow [2023-08-30 09:31:56,406 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=3081, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=163, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=6696, PETRI_PLACES=159, PETRI_TRANSITIONS=367} [2023-08-30 09:31:56,406 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 140 predicate places. [2023-08-30 09:31:56,406 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 367 transitions, 6696 flow [2023-08-30 09:31:56,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 78.66666666666667) internal successors, (1180), 15 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:56,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:31:56,407 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1] [2023-08-30 09:31:56,421 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-08-30 09:31:56,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:31:56,612 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:31:56,612 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:31:56,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1178970245, now seen corresponding path program 2 times [2023-08-30 09:31:56,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:31:56,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637890974] [2023-08-30 09:31:56,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:56,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:31:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:56,701 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:56,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:31:56,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637890974] [2023-08-30 09:31:56,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637890974] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:31:56,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540182733] [2023-08-30 09:31:56,702 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 09:31:56,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:31:56,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:31:56,703 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:31:56,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-30 09:31:56,753 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-30 09:31:56,753 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 09:31:56,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 11 conjunts are in the unsatisfiable core [2023-08-30 09:31:56,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:31:56,777 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:56,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:31:56,860 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:56,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540182733] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:31:56,860 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:31:56,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2023-08-30 09:31:56,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625750742] [2023-08-30 09:31:56,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:31:56,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-08-30 09:31:56,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:31:56,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-08-30 09:31:56,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2023-08-30 09:31:56,894 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 176 [2023-08-30 09:31:56,895 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 367 transitions, 6696 flow. Second operand has 21 states, 21 states have (on average 78.47619047619048) internal successors, (1648), 21 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:56,895 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:31:56,895 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 176 [2023-08-30 09:31:56,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:31:58,052 INFO L130 PetriNetUnfolder]: 1313/2603 cut-off events. [2023-08-30 09:31:58,052 INFO L131 PetriNetUnfolder]: For 211360/211360 co-relation queries the response was YES. [2023-08-30 09:31:58,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22310 conditions, 2603 events. 1313/2603 cut-off events. For 211360/211360 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 16955 event pairs, 9 based on Foata normal form. 320/2923 useless extension candidates. Maximal degree in co-relation 22236. Up to 1153 conditions per place. [2023-08-30 09:31:58,080 INFO L137 encePairwiseOnDemand]: 170/176 looper letters, 220 selfloop transitions, 690 changer transitions 0/910 dead transitions. [2023-08-30 09:31:58,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 910 transitions, 16801 flow [2023-08-30 09:31:58,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-08-30 09:31:58,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2023-08-30 09:31:58,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 5541 transitions. [2023-08-30 09:31:58,123 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46989484396200815 [2023-08-30 09:31:58,123 INFO L72 ComplementDD]: Start complementDD. Operand 67 states and 5541 transitions. [2023-08-30 09:31:58,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 5541 transitions. [2023-08-30 09:31:58,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:31:58,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 67 states and 5541 transitions. [2023-08-30 09:31:58,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 68 states, 67 states have (on average 82.70149253731343) internal successors, (5541), 67 states have internal predecessors, (5541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:58,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 68 states, 68 states have (on average 176.0) internal successors, (11968), 68 states have internal predecessors, (11968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:58,139 INFO L81 ComplementDD]: Finished complementDD. Result has 68 states, 68 states have (on average 176.0) internal successors, (11968), 68 states have internal predecessors, (11968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:58,140 INFO L175 Difference]: Start difference. First operand has 159 places, 367 transitions, 6696 flow. Second operand 67 states and 5541 transitions. [2023-08-30 09:31:58,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 910 transitions, 16801 flow [2023-08-30 09:31:58,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 910 transitions, 16303 flow, removed 232 selfloop flow, removed 10 redundant places. [2023-08-30 09:31:58,313 INFO L231 Difference]: Finished difference. Result has 243 places, 755 transitions, 15726 flow [2023-08-30 09:31:58,314 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=6478, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=339, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=67, PETRI_FLOW=15726, PETRI_PLACES=243, PETRI_TRANSITIONS=755} [2023-08-30 09:31:58,314 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 224 predicate places. [2023-08-30 09:31:58,314 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 755 transitions, 15726 flow [2023-08-30 09:31:58,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 78.47619047619048) internal successors, (1648), 21 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:58,315 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:31:58,315 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:31:58,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-30 09:31:58,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-08-30 09:31:58,520 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:31:58,521 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:31:58,521 INFO L85 PathProgramCache]: Analyzing trace with hash 45611997, now seen corresponding path program 3 times [2023-08-30 09:31:58,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:31:58,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517289100] [2023-08-30 09:31:58,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:31:58,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:31:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:31:58,680 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:58,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:31:58,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517289100] [2023-08-30 09:31:58,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517289100] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:31:58,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153362129] [2023-08-30 09:31:58,681 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-30 09:31:58,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:31:58,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:31:58,682 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:31:58,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-30 09:31:58,736 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-08-30 09:31:58,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 09:31:58,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-30 09:31:58,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:31:58,760 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:58,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:31:58,942 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:31:58,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153362129] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:31:58,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:31:58,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 27 [2023-08-30 09:31:58,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541209545] [2023-08-30 09:31:58,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:31:58,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-08-30 09:31:58,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:31:58,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-08-30 09:31:58,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=456, Unknown=0, NotChecked=0, Total=812 [2023-08-30 09:31:58,986 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 176 [2023-08-30 09:31:58,988 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 755 transitions, 15726 flow. Second operand has 29 states, 29 states have (on average 79.34482758620689) internal successors, (2301), 29 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:31:58,988 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:31:58,988 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 176 [2023-08-30 09:31:58,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:32:01,108 INFO L130 PetriNetUnfolder]: 2749/5472 cut-off events. [2023-08-30 09:32:01,108 INFO L131 PetriNetUnfolder]: For 1134551/1134551 co-relation queries the response was YES. [2023-08-30 09:32:01,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52350 conditions, 5472 events. 2749/5472 cut-off events. For 1134551/1134551 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 38510 event pairs, 125 based on Foata normal form. 571/6043 useless extension candidates. Maximal degree in co-relation 52249. Up to 2519 conditions per place. [2023-08-30 09:32:01,177 INFO L137 encePairwiseOnDemand]: 170/176 looper letters, 361 selfloop transitions, 1479 changer transitions 0/1840 dead transitions. [2023-08-30 09:32:01,177 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 1840 transitions, 40057 flow [2023-08-30 09:32:01,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-08-30 09:32:01,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2023-08-30 09:32:01,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 5663 transitions. [2023-08-30 09:32:01,183 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4731784759358289 [2023-08-30 09:32:01,183 INFO L72 ComplementDD]: Start complementDD. Operand 68 states and 5663 transitions. [2023-08-30 09:32:01,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 5663 transitions. [2023-08-30 09:32:01,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:32:01,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 68 states and 5663 transitions. [2023-08-30 09:32:01,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 69 states, 68 states have (on average 83.27941176470588) internal successors, (5663), 68 states have internal predecessors, (5663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:01,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 69 states, 69 states have (on average 176.0) internal successors, (12144), 69 states have internal predecessors, (12144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:01,198 INFO L81 ComplementDD]: Finished complementDD. Result has 69 states, 69 states have (on average 176.0) internal successors, (12144), 69 states have internal predecessors, (12144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:01,198 INFO L175 Difference]: Start difference. First operand has 243 places, 755 transitions, 15726 flow. Second operand 68 states and 5663 transitions. [2023-08-30 09:32:01,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 1840 transitions, 40057 flow [2023-08-30 09:32:02,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 1840 transitions, 34895 flow, removed 2394 selfloop flow, removed 22 redundant places. [2023-08-30 09:32:02,216 INFO L231 Difference]: Finished difference. Result has 327 places, 1709 transitions, 35900 flow [2023-08-30 09:32:02,216 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=14046, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=755, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=627, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=68, PETRI_FLOW=35900, PETRI_PLACES=327, PETRI_TRANSITIONS=1709} [2023-08-30 09:32:02,216 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 308 predicate places. [2023-08-30 09:32:02,217 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 1709 transitions, 35900 flow [2023-08-30 09:32:02,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 79.34482758620689) internal successors, (2301), 29 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:02,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:32:02,217 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 3, 3, 1, 1, 1, 1, 1] [2023-08-30 09:32:02,225 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-08-30 09:32:02,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-08-30 09:32:02,422 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:32:02,422 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:32:02,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1240625739, now seen corresponding path program 4 times [2023-08-30 09:32:02,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:32:02,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141016565] [2023-08-30 09:32:02,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:32:02,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:32:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:32:02,557 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:32:02,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:32:02,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141016565] [2023-08-30 09:32:02,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141016565] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:32:02,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613013429] [2023-08-30 09:32:02,557 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-30 09:32:02,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:32:02,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:32:02,559 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:32:02,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-08-30 09:32:02,611 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-30 09:32:02,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 09:32:02,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-30 09:32:02,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:32:02,634 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:32:02,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:32:02,792 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:32:02,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613013429] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:32:02,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:32:02,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 27 [2023-08-30 09:32:02,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615070544] [2023-08-30 09:32:02,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:32:02,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-08-30 09:32:02,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:32:02,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-08-30 09:32:02,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=532, Unknown=0, NotChecked=0, Total=812 [2023-08-30 09:32:02,850 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 176 [2023-08-30 09:32:02,851 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 1709 transitions, 35900 flow. Second operand has 29 states, 29 states have (on average 79.34482758620689) internal successors, (2301), 29 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:02,852 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:32:02,852 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 176 [2023-08-30 09:32:02,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:32:09,590 INFO L130 PetriNetUnfolder]: 5609/11182 cut-off events. [2023-08-30 09:32:09,591 INFO L131 PetriNetUnfolder]: For 3693663/3693663 co-relation queries the response was YES. [2023-08-30 09:32:09,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112179 conditions, 11182 events. 5609/11182 cut-off events. For 3693663/3693663 co-relation queries the response was YES. Maximal size of possible extension queue 499. Compared 90961 event pairs, 48 based on Foata normal form. 793/11975 useless extension candidates. Maximal degree in co-relation 112038. Up to 5195 conditions per place. [2023-08-30 09:32:09,771 INFO L137 encePairwiseOnDemand]: 170/176 looper letters, 582 selfloop transitions, 3439 changer transitions 0/4021 dead transitions. [2023-08-30 09:32:09,771 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 4021 transitions, 87098 flow [2023-08-30 09:32:09,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2023-08-30 09:32:09,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2023-08-30 09:32:09,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 8692 transitions. [2023-08-30 09:32:09,778 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4748688811188811 [2023-08-30 09:32:09,779 INFO L72 ComplementDD]: Start complementDD. Operand 104 states and 8692 transitions. [2023-08-30 09:32:09,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 8692 transitions. [2023-08-30 09:32:09,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:32:09,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 104 states and 8692 transitions. [2023-08-30 09:32:09,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 105 states, 104 states have (on average 83.57692307692308) internal successors, (8692), 104 states have internal predecessors, (8692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:09,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 105 states, 105 states have (on average 176.0) internal successors, (18480), 105 states have internal predecessors, (18480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:09,809 INFO L81 ComplementDD]: Finished complementDD. Result has 105 states, 105 states have (on average 176.0) internal successors, (18480), 105 states have internal predecessors, (18480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:09,809 INFO L175 Difference]: Start difference. First operand has 327 places, 1709 transitions, 35900 flow. Second operand 104 states and 8692 transitions. [2023-08-30 09:32:09,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 4021 transitions, 87098 flow [2023-08-30 09:32:15,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 4021 transitions, 80138 flow, removed 2330 selfloop flow, removed 23 redundant places. [2023-08-30 09:32:15,903 INFO L231 Difference]: Finished difference. Result has 458 places, 3760 transitions, 81692 flow [2023-08-30 09:32:15,904 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=32838, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1709, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1578, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=104, PETRI_FLOW=81692, PETRI_PLACES=458, PETRI_TRANSITIONS=3760} [2023-08-30 09:32:15,905 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 439 predicate places. [2023-08-30 09:32:15,905 INFO L495 AbstractCegarLoop]: Abstraction has has 458 places, 3760 transitions, 81692 flow [2023-08-30 09:32:15,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 79.34482758620689) internal successors, (2301), 29 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:15,906 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:32:15,906 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 3, 3, 1, 1, 1, 1, 1] [2023-08-30 09:32:15,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-08-30 09:32:16,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-08-30 09:32:16,110 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:32:16,111 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:32:16,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1386268361, now seen corresponding path program 5 times [2023-08-30 09:32:16,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:32:16,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733317041] [2023-08-30 09:32:16,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:32:16,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:32:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:32:16,263 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:32:16,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:32:16,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733317041] [2023-08-30 09:32:16,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733317041] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:32:16,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142855683] [2023-08-30 09:32:16,264 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-30 09:32:16,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:32:16,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:32:16,265 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:32:16,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-08-30 09:32:16,325 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2023-08-30 09:32:16,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 09:32:16,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 16 conjunts are in the unsatisfiable core [2023-08-30 09:32:16,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:32:16,352 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:32:16,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:32:16,574 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:32:16,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142855683] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:32:16,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:32:16,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 29 [2023-08-30 09:32:16,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381422122] [2023-08-30 09:32:16,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:32:16,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-30 09:32:16,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:32:16,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-30 09:32:16,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=327, Invalid=603, Unknown=0, NotChecked=0, Total=930 [2023-08-30 09:32:16,645 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 176 [2023-08-30 09:32:16,647 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 3760 transitions, 81692 flow. Second operand has 31 states, 31 states have (on average 79.3225806451613) internal successors, (2459), 31 states have internal predecessors, (2459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:16,647 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:32:16,647 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 176 [2023-08-30 09:32:16,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:32:40,661 INFO L130 PetriNetUnfolder]: 10529/21014 cut-off events. [2023-08-30 09:32:40,662 INFO L131 PetriNetUnfolder]: For 15420732/15420732 co-relation queries the response was YES. [2023-08-30 09:32:40,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224715 conditions, 21014 events. 10529/21014 cut-off events. For 15420732/15420732 co-relation queries the response was YES. Maximal size of possible extension queue 825. Compared 191137 event pairs, 75 based on Foata normal form. 1809/22823 useless extension candidates. Maximal degree in co-relation 224525. Up to 9861 conditions per place. [2023-08-30 09:32:41,072 INFO L137 encePairwiseOnDemand]: 170/176 looper letters, 742 selfloop transitions, 6525 changer transitions 0/7267 dead transitions. [2023-08-30 09:32:41,072 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 580 places, 7267 transitions, 167991 flow [2023-08-30 09:32:41,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2023-08-30 09:32:41,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2023-08-30 09:32:41,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 10290 transitions. [2023-08-30 09:32:41,085 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47533259423503327 [2023-08-30 09:32:41,085 INFO L72 ComplementDD]: Start complementDD. Operand 123 states and 10290 transitions. [2023-08-30 09:32:41,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 123 states and 10290 transitions. [2023-08-30 09:32:41,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:32:41,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 123 states and 10290 transitions. [2023-08-30 09:32:41,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 124 states, 123 states have (on average 83.65853658536585) internal successors, (10290), 123 states have internal predecessors, (10290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:41,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 124 states, 124 states have (on average 176.0) internal successors, (21824), 124 states have internal predecessors, (21824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:41,120 INFO L81 ComplementDD]: Finished complementDD. Result has 124 states, 124 states have (on average 176.0) internal successors, (21824), 124 states have internal predecessors, (21824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:41,120 INFO L175 Difference]: Start difference. First operand has 458 places, 3760 transitions, 81692 flow. Second operand 123 states and 10290 transitions. [2023-08-30 09:32:41,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 580 places, 7267 transitions, 167991 flow [2023-08-30 09:33:04,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 559 places, 7267 transitions, 160746 flow, removed 3501 selfloop flow, removed 21 redundant places. [2023-08-30 09:33:04,335 INFO L231 Difference]: Finished difference. Result has 621 places, 6976 transitions, 166883 flow [2023-08-30 09:33:04,337 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=78826, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3760, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3535, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=123, PETRI_FLOW=166883, PETRI_PLACES=621, PETRI_TRANSITIONS=6976} [2023-08-30 09:33:04,338 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 602 predicate places. [2023-08-30 09:33:04,338 INFO L495 AbstractCegarLoop]: Abstraction has has 621 places, 6976 transitions, 166883 flow [2023-08-30 09:33:04,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 79.3225806451613) internal successors, (2459), 31 states have internal predecessors, (2459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:33:04,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:33:04,339 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 1, 1, 1, 1] [2023-08-30 09:33:04,347 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-08-30 09:33:04,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-08-30 09:33:04,543 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:33:04,544 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:33:04,544 INFO L85 PathProgramCache]: Analyzing trace with hash -608310218, now seen corresponding path program 2 times [2023-08-30 09:33:04,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:33:04,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278257864] [2023-08-30 09:33:04,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:33:04,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:33:04,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:33:04,747 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:33:04,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:33:04,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278257864] [2023-08-30 09:33:04,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278257864] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:33:04,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491805324] [2023-08-30 09:33:04,748 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 09:33:04,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:33:04,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:33:04,761 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:33:04,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-08-30 09:33:04,815 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-30 09:33:04,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 09:33:04,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-30 09:33:04,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:33:04,843 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:33:04,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:33:05,026 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:33:05,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491805324] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:33:05,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:33:05,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2023-08-30 09:33:05,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853440992] [2023-08-30 09:33:05,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:33:05,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-08-30 09:33:05,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:33:05,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-08-30 09:33:05,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=290, Invalid=766, Unknown=0, NotChecked=0, Total=1056 [2023-08-30 09:33:05,069 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 176 [2023-08-30 09:33:05,070 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 621 places, 6976 transitions, 166883 flow. Second operand has 33 states, 33 states have (on average 78.21212121212122) internal successors, (2581), 33 states have internal predecessors, (2581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:33:05,071 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:33:05,071 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 176 [2023-08-30 09:33:05,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:34:40,192 INFO L130 PetriNetUnfolder]: 21662/43241 cut-off events. [2023-08-30 09:34:40,192 INFO L131 PetriNetUnfolder]: For 24666319/24666319 co-relation queries the response was YES. [2023-08-30 09:34:41,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 546171 conditions, 43241 events. 21662/43241 cut-off events. For 24666319/24666319 co-relation queries the response was YES. Maximal size of possible extension queue 2056. Compared 444772 event pairs, 65 based on Foata normal form. 749/43990 useless extension candidates. Maximal degree in co-relation 545919. Up to 20141 conditions per place. [2023-08-30 09:34:41,792 INFO L137 encePairwiseOnDemand]: 170/176 looper letters, 2882 selfloop transitions, 12196 changer transitions 0/15078 dead transitions. [2023-08-30 09:34:41,792 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 779 places, 15078 transitions, 381591 flow [2023-08-30 09:34:41,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2023-08-30 09:34:41,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2023-08-30 09:34:41,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 13151 transitions. [2023-08-30 09:34:41,803 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46994711263579186 [2023-08-30 09:34:41,803 INFO L72 ComplementDD]: Start complementDD. Operand 159 states and 13151 transitions. [2023-08-30 09:34:41,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 13151 transitions. [2023-08-30 09:34:41,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:34:41,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 159 states and 13151 transitions. [2023-08-30 09:34:41,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 160 states, 159 states have (on average 82.71069182389937) internal successors, (13151), 159 states have internal predecessors, (13151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:41,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 160 states, 160 states have (on average 176.0) internal successors, (28160), 160 states have internal predecessors, (28160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:41,830 INFO L81 ComplementDD]: Finished complementDD. Result has 160 states, 160 states have (on average 176.0) internal successors, (28160), 160 states have internal predecessors, (28160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:41,830 INFO L175 Difference]: Start difference. First operand has 621 places, 6976 transitions, 166883 flow. Second operand 159 states and 13151 transitions. [2023-08-30 09:34:41,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 779 places, 15078 transitions, 381591 flow [2023-08-30 09:37:25,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 748 places, 15078 transitions, 367076 flow, removed 7141 selfloop flow, removed 31 redundant places. [2023-08-30 09:37:25,661 INFO L231 Difference]: Finished difference. Result has 802 places, 13866 transitions, 355420 flow [2023-08-30 09:37:25,666 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=161494, PETRI_DIFFERENCE_MINUEND_PLACES=590, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6976, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5743, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=974, PETRI_DIFFERENCE_SUBTRAHEND_STATES=159, PETRI_FLOW=355420, PETRI_PLACES=802, PETRI_TRANSITIONS=13866} [2023-08-30 09:37:25,666 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 783 predicate places. [2023-08-30 09:37:25,666 INFO L495 AbstractCegarLoop]: Abstraction has has 802 places, 13866 transitions, 355420 flow [2023-08-30 09:37:25,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 78.21212121212122) internal successors, (2581), 33 states have internal predecessors, (2581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:25,667 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:37:25,667 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 3, 3, 1, 1, 1, 1, 1] [2023-08-30 09:37:25,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-08-30 09:37:25,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-08-30 09:37:25,871 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:37:25,871 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:37:25,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1178120843, now seen corresponding path program 6 times [2023-08-30 09:37:25,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:37:25,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607695036] [2023-08-30 09:37:25,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:37:25,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:37:25,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:37:26,085 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:37:26,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:37:26,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607695036] [2023-08-30 09:37:26,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607695036] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:37:26,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486048050] [2023-08-30 09:37:26,085 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-30 09:37:26,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:37:26,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:37:26,086 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:37:26,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-08-30 09:37:26,151 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2023-08-30 09:37:26,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 09:37:26,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 21 conjunts are in the unsatisfiable core [2023-08-30 09:37:26,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:37:26,182 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:37:26,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:37:26,463 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:37:26,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486048050] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:37:26,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:37:26,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 39 [2023-08-30 09:37:26,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101811347] [2023-08-30 09:37:26,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:37:26,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-08-30 09:37:26,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:37:26,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-08-30 09:37:26,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=1018, Unknown=0, NotChecked=0, Total=1640 [2023-08-30 09:37:26,546 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 176 [2023-08-30 09:37:26,547 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 802 places, 13866 transitions, 355420 flow. Second operand has 41 states, 41 states have (on average 79.2439024390244) internal successors, (3249), 41 states have internal predecessors, (3249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:26,547 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:37:26,547 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 176 [2023-08-30 09:37:26,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:43:42,778 INFO L130 PetriNetUnfolder]: 35201/70306 cut-off events. [2023-08-30 09:43:42,779 INFO L131 PetriNetUnfolder]: For 136008420/136008420 co-relation queries the response was YES. [2023-08-30 09:43:47,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 946792 conditions, 70306 events. 35201/70306 cut-off events. For 136008420/136008420 co-relation queries the response was YES. Maximal size of possible extension queue 3138. Compared 750346 event pairs, 732 based on Foata normal form. 4583/74889 useless extension candidates. Maximal degree in co-relation 946488. Up to 33055 conditions per place. [2023-08-30 09:43:48,277 INFO L137 encePairwiseOnDemand]: 170/176 looper letters, 2364 selfloop transitions, 20417 changer transitions 0/22781 dead transitions. [2023-08-30 09:43:48,277 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 957 places, 22781 transitions, 618919 flow [2023-08-30 09:43:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2023-08-30 09:43:48,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2023-08-30 09:43:48,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 13047 transitions. [2023-08-30 09:43:48,285 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47519667832167833 [2023-08-30 09:43:48,285 INFO L72 ComplementDD]: Start complementDD. Operand 156 states and 13047 transitions. [2023-08-30 09:43:48,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 156 states and 13047 transitions. [2023-08-30 09:43:48,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:43:48,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 156 states and 13047 transitions. [2023-08-30 09:43:48,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 157 states, 156 states have (on average 83.63461538461539) internal successors, (13047), 156 states have internal predecessors, (13047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:43:48,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 157 states, 157 states have (on average 176.0) internal successors, (27632), 157 states have internal predecessors, (27632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:43:48,310 INFO L81 ComplementDD]: Finished complementDD. Result has 157 states, 157 states have (on average 176.0) internal successors, (27632), 157 states have internal predecessors, (27632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:43:48,310 INFO L175 Difference]: Start difference. First operand has 802 places, 13866 transitions, 355420 flow. Second operand 156 states and 13047 transitions. [2023-08-30 09:43:48,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 957 places, 22781 transitions, 618919 flow Killed by 15