./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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/weaver/parallel-ticket-5.wvr.c -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 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 15:13:14,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 15:13:14,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 15:13:14,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 15:13:14,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 15:13:14,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 15:13:14,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 15:13:14,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 15:13:14,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 15:13:14,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 15:13:14,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 15:13:14,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 15:13:14,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 15:13:14,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 15:13:14,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 15:13:14,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 15:13:14,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 15:13:14,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 15:13:14,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 15:13:14,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 15:13:14,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 15:13:14,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 15:13:14,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 15:13:14,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 15:13:14,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 15:13:14,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 15:13:14,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 15:13:14,753 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 15:13:14,754 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 15:13:14,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 15:13:14,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 15:13:14,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 15:13:14,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 15:13:14,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 15:13:14,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 15:13:14,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 15:13:14,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 15:13:14,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 15:13:14,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 15:13:14,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 15:13:14,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 15:13:14,761 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 15:13:14,785 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 15:13:14,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 15:13:14,786 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 15:13:14,786 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 15:13:14,787 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 15:13:14,787 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 15:13:14,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 15:13:14,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 15:13:14,788 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 15:13:14,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 15:13:14,789 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 15:13:14,789 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 15:13:14,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 15:13:14,789 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 15:13:14,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 15:13:14,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 15:13:14,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 15:13:14,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 15:13:14,790 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 15:13:14,790 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 15:13:14,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 15:13:14,790 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 15:13:14,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 15:13:14,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 15:13:14,791 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 15:13:14,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 15:13:14,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 15:13:14,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 15:13:14,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 15:13:14,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 15:13:14,792 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 15:13:14,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 15:13:14,792 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 15:13:14,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 15:13:14,792 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 15:13:14,792 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 15:13:14,792 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 15:13:14,793 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 15:13:14,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 15:13:15,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 15:13:15,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 15:13:15,011 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 15:13:15,011 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 15:13:15,012 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2023-08-30 15:13:15,946 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 15:13:16,108 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 15:13:16,109 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2023-08-30 15:13:16,113 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a54f3561/bc10f4acc7484b64bff712a11a1bbdf3/FLAG4060dfd35 [2023-08-30 15:13:16,128 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a54f3561/bc10f4acc7484b64bff712a11a1bbdf3 [2023-08-30 15:13:16,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 15:13:16,131 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 15:13:16,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 15:13:16,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 15:13:16,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 15:13:16,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:13:16" (1/1) ... [2023-08-30 15:13:16,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79cb42d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:13:16, skipping insertion in model container [2023-08-30 15:13:16,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:13:16" (1/1) ... [2023-08-30 15:13:16,140 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 15:13:16,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 15:13:16,263 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c[3963,3976] [2023-08-30 15:13:16,265 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 15:13:16,270 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 15:13:16,288 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c[3963,3976] [2023-08-30 15:13:16,289 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 15:13:16,293 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 15:13:16,293 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 15:13:16,297 INFO L208 MainTranslator]: Completed translation [2023-08-30 15:13:16,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:13:16 WrapperNode [2023-08-30 15:13:16,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 15:13:16,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 15:13:16,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 15:13:16,299 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 15:13:16,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:13:16" (1/1) ... [2023-08-30 15:13:16,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:13:16" (1/1) ... [2023-08-30 15:13:16,326 INFO L138 Inliner]: procedures = 24, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 267 [2023-08-30 15:13:16,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 15:13:16,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 15:13:16,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 15:13:16,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 15:13:16,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:13:16" (1/1) ... [2023-08-30 15:13:16,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:13:16" (1/1) ... [2023-08-30 15:13:16,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:13:16" (1/1) ... [2023-08-30 15:13:16,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:13:16" (1/1) ... [2023-08-30 15:13:16,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:13:16" (1/1) ... [2023-08-30 15:13:16,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:13:16" (1/1) ... [2023-08-30 15:13:16,346 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:13:16" (1/1) ... [2023-08-30 15:13:16,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:13:16" (1/1) ... [2023-08-30 15:13:16,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 15:13:16,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 15:13:16,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 15:13:16,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 15:13:16,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:13:16" (1/1) ... [2023-08-30 15:13:16,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 15:13:16,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 15:13:16,372 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 15:13:16,396 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 15:13:16,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 15:13:16,405 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-30 15:13:16,405 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-30 15:13:16,405 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-30 15:13:16,405 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-30 15:13:16,405 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-30 15:13:16,406 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-30 15:13:16,406 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-08-30 15:13:16,406 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-08-30 15:13:16,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 15:13:16,406 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-08-30 15:13:16,406 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-08-30 15:13:16,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 15:13:16,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 15:13:16,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 15:13:16,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 15:13:16,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 15:13:16,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 15:13:16,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 15:13:16,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 15:13:16,408 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 15:13:16,529 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 15:13:16,545 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 15:13:16,831 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 15:13:16,947 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 15:13:16,947 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 15:13:16,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:13:16 BoogieIcfgContainer [2023-08-30 15:13:16,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 15:13:16,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 15:13:16,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 15:13:16,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 15:13:16,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:13:16" (1/3) ... [2023-08-30 15:13:16,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c419300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:13:16, skipping insertion in model container [2023-08-30 15:13:16,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:13:16" (2/3) ... [2023-08-30 15:13:16,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c419300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:13:16, skipping insertion in model container [2023-08-30 15:13:16,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:13:16" (3/3) ... [2023-08-30 15:13:16,956 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2023-08-30 15:13:16,961 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 15:13:16,966 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 15:13:16,967 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-08-30 15:13:16,967 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 15:13:17,028 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-08-30 15:13:17,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 199 places, 185 transitions, 410 flow [2023-08-30 15:13:17,123 INFO L130 PetriNetUnfolder]: 2/180 cut-off events. [2023-08-30 15:13:17,124 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-30 15:13:17,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 180 events. 2/180 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 130 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 140. Up to 2 conditions per place. [2023-08-30 15:13:17,128 INFO L82 GeneralOperation]: Start removeDead. Operand has 199 places, 185 transitions, 410 flow [2023-08-30 15:13:17,135 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 173 places, 158 transitions, 343 flow [2023-08-30 15:13:17,137 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 15:13:17,153 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 173 places, 158 transitions, 343 flow [2023-08-30 15:13:17,155 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 173 places, 158 transitions, 343 flow [2023-08-30 15:13:17,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 158 transitions, 343 flow [2023-08-30 15:13:17,194 INFO L130 PetriNetUnfolder]: 1/158 cut-off events. [2023-08-30 15:13:17,194 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-30 15:13:17,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 158 events. 1/158 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 129 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 140. Up to 2 conditions per place. [2023-08-30 15:13:17,197 INFO L119 LiptonReduction]: Number of co-enabled transitions 4234 [2023-08-30 15:13:21,030 INFO L134 LiptonReduction]: Checked pairs total: 23542 [2023-08-30 15:13:21,030 INFO L136 LiptonReduction]: Total number of compositions: 103 [2023-08-30 15:13:21,039 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 15:13:21,043 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;@29f15457, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 15:13:21,043 INFO L358 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2023-08-30 15:13:21,046 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2023-08-30 15:13:21,046 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 15:13:21,046 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:13:21,047 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 15:13:21,047 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 15:13:21,051 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:13:21,051 INFO L85 PathProgramCache]: Analyzing trace with hash 753089, now seen corresponding path program 1 times [2023-08-30 15:13:21,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:13:21,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968904996] [2023-08-30 15:13:21,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:13:21,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:13:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:13:21,360 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 15:13:21,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:13:21,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968904996] [2023-08-30 15:13:21,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968904996] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:13:21,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:13:21,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 15:13:21,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992619536] [2023-08-30 15:13:21,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:13:21,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 15:13:21,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:13:21,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 15:13:21,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 15:13:21,399 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 288 [2023-08-30 15:13:21,403 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 60 transitions, 147 flow. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 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 15:13:21,403 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:13:21,403 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 288 [2023-08-30 15:13:21,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:13:38,774 INFO L130 PetriNetUnfolder]: 314139/408388 cut-off events. [2023-08-30 15:13:38,775 INFO L131 PetriNetUnfolder]: For 17430/17430 co-relation queries the response was YES. [2023-08-30 15:13:39,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 819885 conditions, 408388 events. 314139/408388 cut-off events. For 17430/17430 co-relation queries the response was YES. Maximal size of possible extension queue 20701. Compared 2997149 event pairs, 258754 based on Foata normal form. 0/210564 useless extension candidates. Maximal degree in co-relation 818236. Up to 397670 conditions per place. [2023-08-30 15:13:40,834 INFO L137 encePairwiseOnDemand]: 272/288 looper letters, 62 selfloop transitions, 6 changer transitions 0/74 dead transitions. [2023-08-30 15:13:40,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 74 transitions, 323 flow [2023-08-30 15:13:40,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 15:13:40,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 15:13:40,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 483 transitions. [2023-08-30 15:13:40,844 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5590277777777778 [2023-08-30 15:13:40,844 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 483 transitions. [2023-08-30 15:13:40,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 483 transitions. [2023-08-30 15:13:40,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:13:40,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 483 transitions. [2023-08-30 15:13:40,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 0 states have call successors, (0), 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 15:13:40,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 0 states have call successors, (0), 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 15:13:40,853 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 0 states have call successors, (0), 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 15:13:40,854 INFO L175 Difference]: Start difference. First operand has 76 places, 60 transitions, 147 flow. Second operand 3 states and 483 transitions. [2023-08-30 15:13:40,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 74 transitions, 323 flow [2023-08-30 15:13:41,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 74 transitions, 299 flow, removed 0 selfloop flow, removed 9 redundant places. [2023-08-30 15:13:41,154 INFO L231 Difference]: Finished difference. Result has 70 places, 65 transitions, 188 flow [2023-08-30 15:13:41,155 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=188, PETRI_PLACES=70, PETRI_TRANSITIONS=65} [2023-08-30 15:13:41,157 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -6 predicate places. [2023-08-30 15:13:41,158 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 65 transitions, 188 flow [2023-08-30 15:13:41,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 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 15:13:41,158 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:13:41,158 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 15:13:41,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 15:13:41,159 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 15:13:41,159 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:13:41,159 INFO L85 PathProgramCache]: Analyzing trace with hash 965695412, now seen corresponding path program 1 times [2023-08-30 15:13:41,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:13:41,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140484284] [2023-08-30 15:13:41,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:13:41,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:13:41,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:13:41,209 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 15:13:41,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:13:41,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140484284] [2023-08-30 15:13:41,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140484284] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:13:41,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:13:41,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 15:13:41,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022618642] [2023-08-30 15:13:41,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:13:41,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 15:13:41,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:13:41,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 15:13:41,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 15:13:41,218 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 288 [2023-08-30 15:13:41,219 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 65 transitions, 188 flow. Second operand has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 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 15:13:41,219 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:13:41,219 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 288 [2023-08-30 15:13:41,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:13:49,862 INFO L130 PetriNetUnfolder]: 163615/213924 cut-off events. [2023-08-30 15:13:49,862 INFO L131 PetriNetUnfolder]: For 23235/23235 co-relation queries the response was YES. [2023-08-30 15:13:50,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 487242 conditions, 213924 events. 163615/213924 cut-off events. For 23235/23235 co-relation queries the response was YES. Maximal size of possible extension queue 10639. Compared 1515649 event pairs, 156055 based on Foata normal form. 0/123339 useless extension candidates. Maximal degree in co-relation 353462. Up to 208316 conditions per place. [2023-08-30 15:13:50,858 INFO L137 encePairwiseOnDemand]: 282/288 looper letters, 53 selfloop transitions, 1 changer transitions 0/60 dead transitions. [2023-08-30 15:13:50,859 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 60 transitions, 276 flow [2023-08-30 15:13:50,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 15:13:50,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 15:13:50,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 459 transitions. [2023-08-30 15:13:50,861 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.53125 [2023-08-30 15:13:50,861 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 459 transitions. [2023-08-30 15:13:50,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 459 transitions. [2023-08-30 15:13:50,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:13:50,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 459 transitions. [2023-08-30 15:13:50,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 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 15:13:50,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 0 states have call successors, (0), 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 15:13:50,865 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 0 states have call successors, (0), 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 15:13:50,865 INFO L175 Difference]: Start difference. First operand has 70 places, 65 transitions, 188 flow. Second operand 3 states and 459 transitions. [2023-08-30 15:13:50,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 60 transitions, 276 flow [2023-08-30 15:13:50,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 60 transitions, 270 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 15:13:50,867 INFO L231 Difference]: Finished difference. Result has 66 places, 60 transitions, 164 flow [2023-08-30 15:13:50,867 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=66, PETRI_TRANSITIONS=60} [2023-08-30 15:13:50,867 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -10 predicate places. [2023-08-30 15:13:50,867 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 60 transitions, 164 flow [2023-08-30 15:13:50,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 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 15:13:50,868 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:13:50,868 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 15:13:50,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 15:13:50,868 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 15:13:50,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:13:50,869 INFO L85 PathProgramCache]: Analyzing trace with hash 961209093, now seen corresponding path program 1 times [2023-08-30 15:13:50,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:13:50,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168074838] [2023-08-30 15:13:50,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:13:50,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:13:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:13:50,957 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 15:13:50,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:13:50,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168074838] [2023-08-30 15:13:50,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168074838] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:13:50,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:13:50,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 15:13:50,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397230340] [2023-08-30 15:13:50,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:13:50,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 15:13:50,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:13:50,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 15:13:50,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 15:13:50,963 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 288 [2023-08-30 15:13:50,964 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 60 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 136.5) internal successors, (546), 4 states have internal predecessors, (546), 0 states have call successors, (0), 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 15:13:50,964 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:13:50,964 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 288 [2023-08-30 15:13:50,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:13:59,035 INFO L130 PetriNetUnfolder]: 158918/209679 cut-off events. [2023-08-30 15:13:59,035 INFO L131 PetriNetUnfolder]: For 22228/22228 co-relation queries the response was YES. [2023-08-30 15:13:59,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 472606 conditions, 209679 events. 158918/209679 cut-off events. For 22228/22228 co-relation queries the response was YES. Maximal size of possible extension queue 10638. Compared 1519984 event pairs, 88368 based on Foata normal form. 0/122197 useless extension candidates. Maximal degree in co-relation 472598. Up to 202162 conditions per place. [2023-08-30 15:13:59,920 INFO L137 encePairwiseOnDemand]: 277/288 looper letters, 86 selfloop transitions, 11 changer transitions 0/103 dead transitions. [2023-08-30 15:13:59,920 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 103 transitions, 464 flow [2023-08-30 15:13:59,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 15:13:59,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 15:13:59,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 642 transitions. [2023-08-30 15:13:59,922 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5572916666666666 [2023-08-30 15:13:59,922 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 642 transitions. [2023-08-30 15:13:59,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 642 transitions. [2023-08-30 15:13:59,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:13:59,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 642 transitions. [2023-08-30 15:13:59,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 160.5) internal successors, (642), 4 states have internal predecessors, (642), 0 states have call successors, (0), 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 15:13:59,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 288.0) internal successors, (1440), 5 states have internal predecessors, (1440), 0 states have call successors, (0), 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 15:13:59,926 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 288.0) internal successors, (1440), 5 states have internal predecessors, (1440), 0 states have call successors, (0), 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 15:13:59,926 INFO L175 Difference]: Start difference. First operand has 66 places, 60 transitions, 164 flow. Second operand 4 states and 642 transitions. [2023-08-30 15:13:59,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 103 transitions, 464 flow [2023-08-30 15:13:59,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 103 transitions, 463 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 15:13:59,929 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 235 flow [2023-08-30 15:13:59,929 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2023-08-30 15:13:59,929 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -7 predicate places. [2023-08-30 15:13:59,930 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 235 flow [2023-08-30 15:13:59,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 136.5) internal successors, (546), 4 states have internal predecessors, (546), 0 states have call successors, (0), 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 15:13:59,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:13:59,930 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:13:59,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 15:13:59,931 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 15:13:59,931 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:13:59,931 INFO L85 PathProgramCache]: Analyzing trace with hash -271892987, now seen corresponding path program 1 times [2023-08-30 15:13:59,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:13:59,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506220816] [2023-08-30 15:13:59,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:13:59,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:13:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:14:00,004 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 15:14:00,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:14:00,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506220816] [2023-08-30 15:14:00,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506220816] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:14:00,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:14:00,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 15:14:00,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551496332] [2023-08-30 15:14:00,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:14:00,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 15:14:00,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:14:00,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 15:14:00,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 15:14:00,009 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 288 [2023-08-30 15:14:00,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 235 flow. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 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 15:14:00,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:14:00,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 288 [2023-08-30 15:14:00,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:14:04,625 INFO L130 PetriNetUnfolder]: 90756/119471 cut-off events. [2023-08-30 15:14:04,625 INFO L131 PetriNetUnfolder]: For 50300/50300 co-relation queries the response was YES. [2023-08-30 15:14:04,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308792 conditions, 119471 events. 90756/119471 cut-off events. For 50300/50300 co-relation queries the response was YES. Maximal size of possible extension queue 6286. Compared 756133 event pairs, 27762 based on Foata normal form. 0/72247 useless extension candidates. Maximal degree in co-relation 308782. Up to 110267 conditions per place. [2023-08-30 15:14:05,266 INFO L137 encePairwiseOnDemand]: 272/288 looper letters, 87 selfloop transitions, 6 changer transitions 0/99 dead transitions. [2023-08-30 15:14:05,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 99 transitions, 559 flow [2023-08-30 15:14:05,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 15:14:05,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 15:14:05,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 493 transitions. [2023-08-30 15:14:05,268 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5706018518518519 [2023-08-30 15:14:05,268 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 493 transitions. [2023-08-30 15:14:05,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 493 transitions. [2023-08-30 15:14:05,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:14:05,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 493 transitions. [2023-08-30 15:14:05,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 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 15:14:05,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 0 states have call successors, (0), 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 15:14:05,271 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 0 states have call successors, (0), 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 15:14:05,271 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 235 flow. Second operand 3 states and 493 transitions. [2023-08-30 15:14:05,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 99 transitions, 559 flow [2023-08-30 15:14:05,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 99 transitions, 522 flow, removed 10 selfloop flow, removed 2 redundant places. [2023-08-30 15:14:05,274 INFO L231 Difference]: Finished difference. Result has 70 places, 70 transitions, 271 flow [2023-08-30 15:14:05,274 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=70, PETRI_TRANSITIONS=70} [2023-08-30 15:14:05,274 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -6 predicate places. [2023-08-30 15:14:05,275 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 70 transitions, 271 flow [2023-08-30 15:14:05,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 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 15:14:05,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:14:05,275 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:14:05,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 15:14:05,275 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 15:14:05,276 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:14:05,276 INFO L85 PathProgramCache]: Analyzing trace with hash 837633846, now seen corresponding path program 1 times [2023-08-30 15:14:05,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:14:05,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136172628] [2023-08-30 15:14:05,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:14:05,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:14:05,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:14:05,368 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 15:14:05,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:14:05,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136172628] [2023-08-30 15:14:05,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136172628] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:14:05,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:14:05,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 15:14:05,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627739498] [2023-08-30 15:14:05,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:14:05,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 15:14:05,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:14:05,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 15:14:05,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 15:14:05,374 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 288 [2023-08-30 15:14:05,375 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 70 transitions, 271 flow. Second operand has 5 states, 5 states have (on average 136.8) internal successors, (684), 5 states have internal predecessors, (684), 0 states have call successors, (0), 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 15:14:05,375 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:14:05,375 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 288 [2023-08-30 15:14:05,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:14:10,040 INFO L130 PetriNetUnfolder]: 81174/110495 cut-off events. [2023-08-30 15:14:10,040 INFO L131 PetriNetUnfolder]: For 43908/43908 co-relation queries the response was YES. [2023-08-30 15:14:10,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320708 conditions, 110495 events. 81174/110495 cut-off events. For 43908/43908 co-relation queries the response was YES. Maximal size of possible extension queue 6489. Compared 801154 event pairs, 31584 based on Foata normal form. 0/68469 useless extension candidates. Maximal degree in co-relation 320697. Up to 105040 conditions per place. [2023-08-30 15:14:10,541 INFO L137 encePairwiseOnDemand]: 277/288 looper letters, 115 selfloop transitions, 16 changer transitions 0/137 dead transitions. [2023-08-30 15:14:10,542 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 137 transitions, 762 flow [2023-08-30 15:14:10,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 15:14:10,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 15:14:10,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 801 transitions. [2023-08-30 15:14:10,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.55625 [2023-08-30 15:14:10,543 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 801 transitions. [2023-08-30 15:14:10,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 801 transitions. [2023-08-30 15:14:10,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:14:10,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 801 transitions. [2023-08-30 15:14:10,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 160.2) internal successors, (801), 5 states have internal predecessors, (801), 0 states have call successors, (0), 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 15:14:10,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 288.0) internal successors, (1728), 6 states have internal predecessors, (1728), 0 states have call successors, (0), 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 15:14:10,548 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 288.0) internal successors, (1728), 6 states have internal predecessors, (1728), 0 states have call successors, (0), 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 15:14:10,548 INFO L175 Difference]: Start difference. First operand has 70 places, 70 transitions, 271 flow. Second operand 5 states and 801 transitions. [2023-08-30 15:14:10,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 137 transitions, 762 flow [2023-08-30 15:14:10,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 137 transitions, 746 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 15:14:10,559 INFO L231 Difference]: Finished difference. Result has 74 places, 75 transitions, 357 flow [2023-08-30 15:14:10,559 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=357, PETRI_PLACES=74, PETRI_TRANSITIONS=75} [2023-08-30 15:14:10,560 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -2 predicate places. [2023-08-30 15:14:10,560 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 75 transitions, 357 flow [2023-08-30 15:14:10,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 136.8) internal successors, (684), 5 states have internal predecessors, (684), 0 states have call successors, (0), 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 15:14:10,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:14:10,561 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:14:10,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 15:14:10,561 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 15:14:10,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:14:10,561 INFO L85 PathProgramCache]: Analyzing trace with hash -632426327, now seen corresponding path program 1 times [2023-08-30 15:14:10,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:14:10,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584959091] [2023-08-30 15:14:10,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:14:10,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:14:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:14:10,631 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 15:14:10,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:14:10,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584959091] [2023-08-30 15:14:10,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584959091] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:14:10,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:14:10,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 15:14:10,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584873377] [2023-08-30 15:14:10,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:14:10,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 15:14:10,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:14:10,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 15:14:10,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 15:14:10,639 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 288 [2023-08-30 15:14:10,639 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 75 transitions, 357 flow. Second operand has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 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 15:14:10,640 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:14:10,640 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 288 [2023-08-30 15:14:10,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:14:14,597 INFO L130 PetriNetUnfolder]: 61932/84493 cut-off events. [2023-08-30 15:14:14,598 INFO L131 PetriNetUnfolder]: For 61937/61937 co-relation queries the response was YES. [2023-08-30 15:14:14,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254780 conditions, 84493 events. 61932/84493 cut-off events. For 61937/61937 co-relation queries the response was YES. Maximal size of possible extension queue 5166. Compared 604821 event pairs, 10484 based on Foata normal form. 0/54295 useless extension candidates. Maximal degree in co-relation 254767. Up to 72638 conditions per place. [2023-08-30 15:14:14,954 INFO L137 encePairwiseOnDemand]: 277/288 looper letters, 149 selfloop transitions, 21 changer transitions 0/176 dead transitions. [2023-08-30 15:14:14,954 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 176 transitions, 1039 flow [2023-08-30 15:14:14,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 15:14:14,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 15:14:14,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 970 transitions. [2023-08-30 15:14:14,957 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5613425925925926 [2023-08-30 15:14:14,957 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 970 transitions. [2023-08-30 15:14:14,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 970 transitions. [2023-08-30 15:14:14,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:14:14,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 970 transitions. [2023-08-30 15:14:14,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 161.66666666666666) internal successors, (970), 6 states have internal predecessors, (970), 0 states have call successors, (0), 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 15:14:14,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 288.0) internal successors, (2016), 7 states have internal predecessors, (2016), 0 states have call successors, (0), 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 15:14:14,961 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 288.0) internal successors, (2016), 7 states have internal predecessors, (2016), 0 states have call successors, (0), 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 15:14:14,961 INFO L175 Difference]: Start difference. First operand has 74 places, 75 transitions, 357 flow. Second operand 6 states and 970 transitions. [2023-08-30 15:14:14,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 176 transitions, 1039 flow [2023-08-30 15:14:14,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 176 transitions, 997 flow, removed 10 selfloop flow, removed 3 redundant places. [2023-08-30 15:14:14,979 INFO L231 Difference]: Finished difference. Result has 77 places, 80 transitions, 427 flow [2023-08-30 15:14:14,979 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=427, PETRI_PLACES=77, PETRI_TRANSITIONS=80} [2023-08-30 15:14:14,980 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 1 predicate places. [2023-08-30 15:14:14,980 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 80 transitions, 427 flow [2023-08-30 15:14:14,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 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 15:14:14,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:14:14,981 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:14:14,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 15:14:14,981 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 15:14:14,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:14:14,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1518946546, now seen corresponding path program 1 times [2023-08-30 15:14:14,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:14:14,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094225396] [2023-08-30 15:14:14,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:14:14,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:14:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:14:15,024 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 15:14:15,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:14:15,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094225396] [2023-08-30 15:14:15,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094225396] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:14:15,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:14:15,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 15:14:15,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842800247] [2023-08-30 15:14:15,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:14:15,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 15:14:15,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:14:15,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 15:14:15,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 15:14:15,029 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 288 [2023-08-30 15:14:15,030 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 80 transitions, 427 flow. Second operand has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 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 15:14:15,030 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:14:15,030 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 288 [2023-08-30 15:14:15,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:14:16,993 INFO L130 PetriNetUnfolder]: 30540/41678 cut-off events. [2023-08-30 15:14:16,993 INFO L131 PetriNetUnfolder]: For 58837/58837 co-relation queries the response was YES. [2023-08-30 15:14:17,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135494 conditions, 41678 events. 30540/41678 cut-off events. For 58837/58837 co-relation queries the response was YES. Maximal size of possible extension queue 2254. Compared 270480 event pairs, 23262 based on Foata normal form. 0/31784 useless extension candidates. Maximal degree in co-relation 135480. Up to 40445 conditions per place. [2023-08-30 15:14:17,172 INFO L137 encePairwiseOnDemand]: 282/288 looper letters, 68 selfloop transitions, 1 changer transitions 0/75 dead transitions. [2023-08-30 15:14:17,173 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 75 transitions, 545 flow [2023-08-30 15:14:17,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 15:14:17,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 15:14:17,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2023-08-30 15:14:17,174 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5254629629629629 [2023-08-30 15:14:17,174 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 454 transitions. [2023-08-30 15:14:17,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 454 transitions. [2023-08-30 15:14:17,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:14:17,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 454 transitions. [2023-08-30 15:14:17,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 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 15:14:17,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 0 states have call successors, (0), 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 15:14:17,176 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 0 states have call successors, (0), 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 15:14:17,176 INFO L175 Difference]: Start difference. First operand has 77 places, 80 transitions, 427 flow. Second operand 3 states and 454 transitions. [2023-08-30 15:14:17,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 75 transitions, 545 flow [2023-08-30 15:14:17,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 75 transitions, 483 flow, removed 15 selfloop flow, removed 4 redundant places. [2023-08-30 15:14:17,240 INFO L231 Difference]: Finished difference. Result has 70 places, 75 transitions, 347 flow [2023-08-30 15:14:17,240 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=347, PETRI_PLACES=70, PETRI_TRANSITIONS=75} [2023-08-30 15:14:17,241 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -6 predicate places. [2023-08-30 15:14:17,241 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 75 transitions, 347 flow [2023-08-30 15:14:17,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 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 15:14:17,241 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:14:17,241 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:14:17,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 15:14:17,242 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 15:14:17,242 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:14:17,242 INFO L85 PathProgramCache]: Analyzing trace with hash 342454457, now seen corresponding path program 1 times [2023-08-30 15:14:17,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:14:17,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608516757] [2023-08-30 15:14:17,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:14:17,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:14:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:14:17,293 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 15:14:17,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:14:17,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608516757] [2023-08-30 15:14:17,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608516757] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:14:17,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:14:17,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 15:14:17,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494780040] [2023-08-30 15:14:17,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:14:17,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 15:14:17,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:14:17,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 15:14:17,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 15:14:17,299 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 288 [2023-08-30 15:14:17,300 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 75 transitions, 347 flow. Second operand has 4 states, 4 states have (on average 137.5) internal successors, (550), 4 states have internal predecessors, (550), 0 states have call successors, (0), 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 15:14:17,300 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:14:17,300 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 288 [2023-08-30 15:14:17,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:14:18,647 INFO L130 PetriNetUnfolder]: 18771/25612 cut-off events. [2023-08-30 15:14:18,647 INFO L131 PetriNetUnfolder]: For 23325/23325 co-relation queries the response was YES. [2023-08-30 15:14:18,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77300 conditions, 25612 events. 18771/25612 cut-off events. For 23325/23325 co-relation queries the response was YES. Maximal size of possible extension queue 1086. Compared 141038 event pairs, 2908 based on Foata normal form. 0/21433 useless extension candidates. Maximal degree in co-relation 77286. Up to 15537 conditions per place. [2023-08-30 15:14:18,733 INFO L137 encePairwiseOnDemand]: 277/288 looper letters, 136 selfloop transitions, 11 changer transitions 0/153 dead transitions. [2023-08-30 15:14:18,733 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 153 transitions, 1057 flow [2023-08-30 15:14:18,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 15:14:18,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 15:14:18,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 647 transitions. [2023-08-30 15:14:18,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5616319444444444 [2023-08-30 15:14:18,735 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 647 transitions. [2023-08-30 15:14:18,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 647 transitions. [2023-08-30 15:14:18,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:14:18,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 647 transitions. [2023-08-30 15:14:18,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 161.75) internal successors, (647), 4 states have internal predecessors, (647), 0 states have call successors, (0), 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 15:14:18,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 288.0) internal successors, (1440), 5 states have internal predecessors, (1440), 0 states have call successors, (0), 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 15:14:18,738 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 288.0) internal successors, (1440), 5 states have internal predecessors, (1440), 0 states have call successors, (0), 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 15:14:18,738 INFO L175 Difference]: Start difference. First operand has 70 places, 75 transitions, 347 flow. Second operand 4 states and 647 transitions. [2023-08-30 15:14:18,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 153 transitions, 1057 flow [2023-08-30 15:14:18,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 153 transitions, 1056 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 15:14:18,751 INFO L231 Difference]: Finished difference. Result has 73 places, 80 transitions, 418 flow [2023-08-30 15:14:18,751 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=418, PETRI_PLACES=73, PETRI_TRANSITIONS=80} [2023-08-30 15:14:18,752 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -3 predicate places. [2023-08-30 15:14:18,752 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 80 transitions, 418 flow [2023-08-30 15:14:18,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 137.5) internal successors, (550), 4 states have internal predecessors, (550), 0 states have call successors, (0), 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 15:14:18,752 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:14:18,752 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:14:18,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 15:14:18,753 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread5Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 15:14:18,753 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:14:18,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1169712019, now seen corresponding path program 1 times [2023-08-30 15:14:18,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:14:18,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917792698] [2023-08-30 15:14:18,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:14:18,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:14:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:14:18,829 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 15:14:18,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:14:18,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917792698] [2023-08-30 15:14:18,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917792698] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:14:18,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:14:18,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 15:14:18,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828816107] [2023-08-30 15:14:18,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:14:18,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 15:14:18,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:14:18,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 15:14:18,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-30 15:14:18,841 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 288 [2023-08-30 15:14:18,841 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 80 transitions, 418 flow. Second operand has 7 states, 7 states have (on average 137.14285714285714) internal successors, (960), 7 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:14:18,842 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:14:18,842 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 288 [2023-08-30 15:14:18,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:14:19,940 INFO L130 PetriNetUnfolder]: 14070/20315 cut-off events. [2023-08-30 15:14:19,941 INFO L131 PetriNetUnfolder]: For 31967/31967 co-relation queries the response was YES. [2023-08-30 15:14:19,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65046 conditions, 20315 events. 14070/20315 cut-off events. For 31967/31967 co-relation queries the response was YES. Maximal size of possible extension queue 717. Compared 128285 event pairs, 124 based on Foata normal form. 0/18403 useless extension candidates. Maximal degree in co-relation 65030. Up to 7247 conditions per place. [2023-08-30 15:14:20,013 INFO L137 encePairwiseOnDemand]: 277/288 looper letters, 163 selfloop transitions, 26 changer transitions 0/195 dead transitions. [2023-08-30 15:14:20,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 195 transitions, 1265 flow [2023-08-30 15:14:20,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 15:14:20,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 15:14:20,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1104 transitions. [2023-08-30 15:14:20,018 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5476190476190477 [2023-08-30 15:14:20,018 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1104 transitions. [2023-08-30 15:14:20,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1104 transitions. [2023-08-30 15:14:20,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:14:20,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1104 transitions. [2023-08-30 15:14:20,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 157.71428571428572) internal successors, (1104), 7 states have internal predecessors, (1104), 0 states have call successors, (0), 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 15:14:20,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 288.0) internal successors, (2304), 8 states have internal predecessors, (2304), 0 states have call successors, (0), 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 15:14:20,023 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 288.0) internal successors, (2304), 8 states have internal predecessors, (2304), 0 states have call successors, (0), 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 15:14:20,023 INFO L175 Difference]: Start difference. First operand has 73 places, 80 transitions, 418 flow. Second operand 7 states and 1104 transitions. [2023-08-30 15:14:20,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 195 transitions, 1265 flow [2023-08-30 15:14:20,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 195 transitions, 1178 flow, removed 20 selfloop flow, removed 2 redundant places. [2023-08-30 15:14:20,047 INFO L231 Difference]: Finished difference. Result has 72 places, 75 transitions, 398 flow [2023-08-30 15:14:20,047 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=398, PETRI_PLACES=72, PETRI_TRANSITIONS=75} [2023-08-30 15:14:20,048 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -4 predicate places. [2023-08-30 15:14:20,048 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 75 transitions, 398 flow [2023-08-30 15:14:20,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 137.14285714285714) internal successors, (960), 7 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:14:20,048 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:14:20,049 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:14:20,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 15:14:20,049 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 15:14:20,049 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:14:20,049 INFO L85 PathProgramCache]: Analyzing trace with hash 154542900, now seen corresponding path program 1 times [2023-08-30 15:14:20,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:14:20,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798425770] [2023-08-30 15:14:20,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:14:20,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:14:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:14:20,110 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 15:14:20,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:14:20,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798425770] [2023-08-30 15:14:20,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798425770] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:14:20,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:14:20,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 15:14:20,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874921223] [2023-08-30 15:14:20,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:14:20,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 15:14:20,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:14:20,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 15:14:20,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 15:14:20,117 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 288 [2023-08-30 15:14:20,118 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 75 transitions, 398 flow. Second operand has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 0 states have call successors, (0), 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 15:14:20,118 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:14:20,118 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 288 [2023-08-30 15:14:20,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:14:20,866 INFO L130 PetriNetUnfolder]: 10936/14944 cut-off events. [2023-08-30 15:14:20,866 INFO L131 PetriNetUnfolder]: For 32300/32300 co-relation queries the response was YES. [2023-08-30 15:14:20,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49646 conditions, 14944 events. 10936/14944 cut-off events. For 32300/32300 co-relation queries the response was YES. Maximal size of possible extension queue 624. Compared 74883 event pairs, 1322 based on Foata normal form. 0/14564 useless extension candidates. Maximal degree in co-relation 49630. Up to 5049 conditions per place. [2023-08-30 15:14:20,916 INFO L137 encePairwiseOnDemand]: 277/288 looper letters, 145 selfloop transitions, 16 changer transitions 0/167 dead transitions. [2023-08-30 15:14:20,916 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 167 transitions, 1239 flow [2023-08-30 15:14:20,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 15:14:20,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 15:14:20,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 791 transitions. [2023-08-30 15:14:20,918 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5493055555555556 [2023-08-30 15:14:20,918 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 791 transitions. [2023-08-30 15:14:20,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 791 transitions. [2023-08-30 15:14:20,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:14:20,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 791 transitions. [2023-08-30 15:14:20,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 158.2) internal successors, (791), 5 states have internal predecessors, (791), 0 states have call successors, (0), 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 15:14:20,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 288.0) internal successors, (1728), 6 states have internal predecessors, (1728), 0 states have call successors, (0), 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 15:14:20,921 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 288.0) internal successors, (1728), 6 states have internal predecessors, (1728), 0 states have call successors, (0), 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 15:14:20,921 INFO L175 Difference]: Start difference. First operand has 72 places, 75 transitions, 398 flow. Second operand 5 states and 791 transitions. [2023-08-30 15:14:20,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 167 transitions, 1239 flow [2023-08-30 15:14:20,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 167 transitions, 896 flow, removed 80 selfloop flow, removed 9 redundant places. [2023-08-30 15:14:20,949 INFO L231 Difference]: Finished difference. Result has 68 places, 80 transitions, 372 flow [2023-08-30 15:14:20,949 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=372, PETRI_PLACES=68, PETRI_TRANSITIONS=80} [2023-08-30 15:14:20,950 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -8 predicate places. [2023-08-30 15:14:20,950 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 80 transitions, 372 flow [2023-08-30 15:14:20,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 0 states have call successors, (0), 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 15:14:20,950 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:14:20,950 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:14:20,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 15:14:20,951 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 15:14:20,951 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:14:20,951 INFO L85 PathProgramCache]: Analyzing trace with hash -194984331, now seen corresponding path program 1 times [2023-08-30 15:14:20,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:14:20,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359451651] [2023-08-30 15:14:20,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:14:20,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:14:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:14:21,103 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 15:14:21,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:14:21,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359451651] [2023-08-30 15:14:21,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359451651] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:14:21,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:14:21,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 15:14:21,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251011349] [2023-08-30 15:14:21,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:14:21,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 15:14:21,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:14:21,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 15:14:21,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-30 15:14:21,137 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 288 [2023-08-30 15:14:21,138 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 80 transitions, 372 flow. Second operand has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 0 states have call successors, (0), 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 15:14:21,138 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:14:21,138 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 288 [2023-08-30 15:14:21,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:14:21,967 INFO L130 PetriNetUnfolder]: 12742/17337 cut-off events. [2023-08-30 15:14:21,967 INFO L131 PetriNetUnfolder]: For 16475/16475 co-relation queries the response was YES. [2023-08-30 15:14:21,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50647 conditions, 17337 events. 12742/17337 cut-off events. For 16475/16475 co-relation queries the response was YES. Maximal size of possible extension queue 691. Compared 87236 event pairs, 1140 based on Foata normal form. 0/17299 useless extension candidates. Maximal degree in co-relation 50634. Up to 6305 conditions per place. [2023-08-30 15:14:22,017 INFO L137 encePairwiseOnDemand]: 272/288 looper letters, 168 selfloop transitions, 26 changer transitions 5/204 dead transitions. [2023-08-30 15:14:22,018 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 204 transitions, 1153 flow [2023-08-30 15:14:22,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 15:14:22,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 15:14:22,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1076 transitions. [2023-08-30 15:14:22,020 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5337301587301587 [2023-08-30 15:14:22,020 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1076 transitions. [2023-08-30 15:14:22,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1076 transitions. [2023-08-30 15:14:22,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:14:22,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1076 transitions. [2023-08-30 15:14:22,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 153.71428571428572) internal successors, (1076), 7 states have internal predecessors, (1076), 0 states have call successors, (0), 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 15:14:22,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 288.0) internal successors, (2304), 8 states have internal predecessors, (2304), 0 states have call successors, (0), 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 15:14:22,024 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 288.0) internal successors, (2304), 8 states have internal predecessors, (2304), 0 states have call successors, (0), 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 15:14:22,024 INFO L175 Difference]: Start difference. First operand has 68 places, 80 transitions, 372 flow. Second operand 7 states and 1076 transitions. [2023-08-30 15:14:22,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 204 transitions, 1153 flow [2023-08-30 15:14:22,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 204 transitions, 1111 flow, removed 10 selfloop flow, removed 3 redundant places. [2023-08-30 15:14:22,347 INFO L231 Difference]: Finished difference. Result has 72 places, 80 transitions, 402 flow [2023-08-30 15:14:22,347 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=402, PETRI_PLACES=72, PETRI_TRANSITIONS=80} [2023-08-30 15:14:22,348 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -4 predicate places. [2023-08-30 15:14:22,348 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 80 transitions, 402 flow [2023-08-30 15:14:22,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 0 states have call successors, (0), 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 15:14:22,348 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:14:22,349 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:14:22,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 15:14:22,349 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread5Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-08-30 15:14:22,349 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:14:22,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1709975099, now seen corresponding path program 1 times [2023-08-30 15:14:22,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:14:22,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282223462] [2023-08-30 15:14:22,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:14:22,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:14:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:14:22,457 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 15:14:22,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:14:22,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282223462] [2023-08-30 15:14:22,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282223462] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:14:22,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:14:22,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 15:14:22,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885382043] [2023-08-30 15:14:22,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:14:22,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 15:14:22,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:14:22,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 15:14:22,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-30 15:14:22,465 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 288 [2023-08-30 15:14:22,466 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 80 transitions, 402 flow. Second operand has 7 states, 7 states have (on average 138.57142857142858) internal successors, (970), 7 states have internal predecessors, (970), 0 states have call successors, (0), 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 15:14:22,466 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:14:22,466 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 288 [2023-08-30 15:14:22,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:14:23,103 INFO L130 PetriNetUnfolder]: 10384/14069 cut-off events. [2023-08-30 15:14:23,103 INFO L131 PetriNetUnfolder]: For 14900/14900 co-relation queries the response was YES. [2023-08-30 15:14:23,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42163 conditions, 14069 events. 10384/14069 cut-off events. For 14900/14900 co-relation queries the response was YES. Maximal size of possible extension queue 624. Compared 69281 event pairs, 1210 based on Foata normal form. 30/14069 useless extension candidates. Maximal degree in co-relation 42149. Up to 5049 conditions per place. [2023-08-30 15:14:23,131 INFO L137 encePairwiseOnDemand]: 277/288 looper letters, 0 selfloop transitions, 0 changer transitions 181/181 dead transitions. [2023-08-30 15:14:23,131 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 181 transitions, 1014 flow [2023-08-30 15:14:23,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 15:14:23,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 15:14:23,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1075 transitions. [2023-08-30 15:14:23,133 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.533234126984127 [2023-08-30 15:14:23,133 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1075 transitions. [2023-08-30 15:14:23,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1075 transitions. [2023-08-30 15:14:23,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:14:23,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1075 transitions. [2023-08-30 15:14:23,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 153.57142857142858) internal successors, (1075), 7 states have internal predecessors, (1075), 0 states have call successors, (0), 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 15:14:23,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 288.0) internal successors, (2304), 8 states have internal predecessors, (2304), 0 states have call successors, (0), 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 15:14:23,137 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 288.0) internal successors, (2304), 8 states have internal predecessors, (2304), 0 states have call successors, (0), 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 15:14:23,137 INFO L175 Difference]: Start difference. First operand has 72 places, 80 transitions, 402 flow. Second operand 7 states and 1075 transitions. [2023-08-30 15:14:23,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 181 transitions, 1014 flow [2023-08-30 15:14:23,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 181 transitions, 910 flow, removed 15 selfloop flow, removed 9 redundant places. [2023-08-30 15:14:23,562 INFO L231 Difference]: Finished difference. Result has 64 places, 0 transitions, 0 flow [2023-08-30 15:14:23,562 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=64, PETRI_TRANSITIONS=0} [2023-08-30 15:14:23,562 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -12 predicate places. [2023-08-30 15:14:23,563 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 0 transitions, 0 flow [2023-08-30 15:14:23,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 138.57142857142858) internal successors, (970), 7 states have internal predecessors, (970), 0 states have call successors, (0), 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 15:14:23,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 45 remaining) [2023-08-30 15:14:23,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 45 remaining) [2023-08-30 15:14:23,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 45 remaining) [2023-08-30 15:14:23,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 45 remaining) [2023-08-30 15:14:23,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 45 remaining) [2023-08-30 15:14:23,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 45 remaining) [2023-08-30 15:14:23,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 45 remaining) [2023-08-30 15:14:23,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 45 remaining) [2023-08-30 15:14:23,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 45 remaining) [2023-08-30 15:14:23,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 45 remaining) [2023-08-30 15:14:23,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 45 remaining) [2023-08-30 15:14:23,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 45 remaining) [2023-08-30 15:14:23,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 45 remaining) [2023-08-30 15:14:23,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 45 remaining) [2023-08-30 15:14:23,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 45 remaining) [2023-08-30 15:14:23,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 45 remaining) [2023-08-30 15:14:23,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 45 remaining) [2023-08-30 15:14:23,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 45 remaining) [2023-08-30 15:14:23,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 45 remaining) [2023-08-30 15:14:23,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 45 remaining) [2023-08-30 15:14:23,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 45 remaining) [2023-08-30 15:14:23,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 45 remaining) [2023-08-30 15:14:23,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 45 remaining) [2023-08-30 15:14:23,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 45 remaining) [2023-08-30 15:14:23,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 45 remaining) [2023-08-30 15:14:23,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 45 remaining) [2023-08-30 15:14:23,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 45 remaining) [2023-08-30 15:14:23,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 45 remaining) [2023-08-30 15:14:23,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 45 remaining) [2023-08-30 15:14:23,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 45 remaining) [2023-08-30 15:14:23,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 45 remaining) [2023-08-30 15:14:23,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 45 remaining) [2023-08-30 15:14:23,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 45 remaining) [2023-08-30 15:14:23,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 45 remaining) [2023-08-30 15:14:23,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 45 remaining) [2023-08-30 15:14:23,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 45 remaining) [2023-08-30 15:14:23,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 45 remaining) [2023-08-30 15:14:23,571 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 45 remaining) [2023-08-30 15:14:23,571 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 45 remaining) [2023-08-30 15:14:23,571 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 45 remaining) [2023-08-30 15:14:23,571 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 45 remaining) [2023-08-30 15:14:23,571 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 45 remaining) [2023-08-30 15:14:23,571 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 45 remaining) [2023-08-30 15:14:23,571 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 45 remaining) [2023-08-30 15:14:23,571 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 45 remaining) [2023-08-30 15:14:23,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-30 15:14:23,572 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:14:23,575 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 15:14:23,575 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 15:14:23,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:14:23 BasicIcfg [2023-08-30 15:14:23,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 15:14:23,577 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 15:14:23,578 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 15:14:23,578 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 15:14:23,578 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:13:16" (3/4) ... [2023-08-30 15:14:23,579 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 15:14:23,582 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-30 15:14:23,582 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-30 15:14:23,582 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-30 15:14:23,583 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2023-08-30 15:14:23,583 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread5 [2023-08-30 15:14:23,585 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-08-30 15:14:23,586 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 15:14:23,586 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 15:14:23,586 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 15:14:23,607 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 15:14:23,607 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 15:14:23,608 INFO L158 Benchmark]: Toolchain (without parser) took 67477.00ms. Allocated memory was 77.6MB in the beginning and 15.9GB in the end (delta: 15.9GB). Free memory was 55.8MB in the beginning and 8.7GB in the end (delta: -8.7GB). Peak memory consumption was 7.2GB. Max. memory is 16.1GB. [2023-08-30 15:14:23,608 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 77.6MB. Free memory is still 55.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 15:14:23,608 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.86ms. Allocated memory is still 77.6MB. Free memory was 55.6MB in the beginning and 43.6MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 15:14:23,608 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.97ms. Allocated memory is still 77.6MB. Free memory was 43.6MB in the beginning and 41.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 15:14:23,608 INFO L158 Benchmark]: Boogie Preprocessor took 22.07ms. Allocated memory is still 77.6MB. Free memory was 41.3MB in the beginning and 39.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 15:14:23,609 INFO L158 Benchmark]: RCFGBuilder took 600.77ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 39.5MB in the beginning and 72.4MB in the end (delta: -32.9MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2023-08-30 15:14:23,609 INFO L158 Benchmark]: TraceAbstraction took 66625.79ms. Allocated memory was 94.4MB in the beginning and 15.9GB in the end (delta: 15.9GB). Free memory was 71.3MB in the beginning and 8.7GB in the end (delta: -8.7GB). Peak memory consumption was 7.2GB. Max. memory is 16.1GB. [2023-08-30 15:14:23,609 INFO L158 Benchmark]: Witness Printer took 29.75ms. Allocated memory is still 15.9GB. Free memory was 8.7GB in the beginning and 8.7GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 15:14:23,610 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 77.6MB. Free memory is still 55.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 164.86ms. Allocated memory is still 77.6MB. Free memory was 55.6MB in the beginning and 43.6MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.97ms. Allocated memory is still 77.6MB. Free memory was 43.6MB in the beginning and 41.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.07ms. Allocated memory is still 77.6MB. Free memory was 41.3MB in the beginning and 39.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 600.77ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 39.5MB in the beginning and 72.4MB in the end (delta: -32.9MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * TraceAbstraction took 66625.79ms. Allocated memory was 94.4MB in the beginning and 15.9GB in the end (delta: 15.9GB). Free memory was 71.3MB in the beginning and 8.7GB in the end (delta: -8.7GB). Peak memory consumption was 7.2GB. Max. memory is 16.1GB. * Witness Printer took 29.75ms. Allocated memory is still 15.9GB. Free memory was 8.7GB in the beginning and 8.7GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9s, 173 PlacesBefore, 76 PlacesAfterwards, 158 TransitionsBefore, 60 TransitionsAfterwards, 4234 CoEnabledTransitionPairs, 7 FixpointIterations, 67 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 103 TotalNumberOfCompositions, 23542 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6443, independent: 6001, independent conditional: 0, independent unconditional: 6001, dependent: 442, dependent conditional: 0, dependent unconditional: 442, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1699, independent: 1633, independent conditional: 0, independent unconditional: 1633, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6443, independent: 4368, independent conditional: 0, independent unconditional: 4368, dependent: 376, dependent conditional: 0, dependent unconditional: 376, unknown: 1699, unknown conditional: 0, unknown unconditional: 1699] , Statistics on independence cache: Total cache size (in pairs): 471, Positive cache size: 442, Positive conditional cache size: 0, Positive unconditional cache size: 442, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 104]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 104]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 114]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 114]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 123]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 123]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 133]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 133]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 245 locations, 45 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 66.5s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 61.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1052 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 985 mSDsluCounter, 86 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 75 mSDsCounter, 204 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1673 IncrementalHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 204 mSolverCounterUnsat, 11 mSDtfsCounter, 1673 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=427occurred in iteration=6, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 479 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 20 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 15:14:23,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE