/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread/stateful01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:29:18,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:29:18,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:29:18,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:29:18,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:29:18,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:29:18,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:29:18,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:29:18,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:29:18,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:29:18,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:29:18,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:29:18,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:29:18,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:29:18,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:29:18,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:29:18,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:29:18,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:29:18,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:29:18,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:29:18,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:29:18,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:29:18,671 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:29:18,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:29:18,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:29:18,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:29:18,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:29:18,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:29:18,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:29:18,684 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:29:18,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:29:18,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:29:18,687 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:29:18,687 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:29:18,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:29:18,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:29:18,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:29:18,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:29:18,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:29:18,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:29:18,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:29:18,692 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-16 11:29:18,726 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:29:18,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:29:18,728 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:29:18,728 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:29:18,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:29:18,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:29:18,728 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:29:18,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:29:18,729 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:29:18,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:29:18,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:29:18,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:29:18,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:29:18,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:29:18,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:29:18,730 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:29:18,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:29:18,730 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:29:18,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:29:18,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:29:18,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:29:18,731 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:29:18,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:29:18,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:29:18,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:29:18,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:29:18,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:29:18,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:29:18,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:29:18,733 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:29:18,733 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:29:18,733 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:29:18,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:29:19,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:29:19,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:29:19,018 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:29:19,019 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:29:19,020 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-1.i [2022-09-16 11:29:19,076 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eaa5cbd0/864c6102e7e943629b6b8b212291bdb1/FLAG2c98669d9 [2022-09-16 11:29:19,581 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:29:19,581 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i [2022-09-16 11:29:19,592 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eaa5cbd0/864c6102e7e943629b6b8b212291bdb1/FLAG2c98669d9 [2022-09-16 11:29:19,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eaa5cbd0/864c6102e7e943629b6b8b212291bdb1 [2022-09-16 11:29:19,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:29:19,918 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:29:19,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:29:19,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:29:19,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:29:19,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:29:19" (1/1) ... [2022-09-16 11:29:19,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1594a51d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:29:19, skipping insertion in model container [2022-09-16 11:29:19,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:29:19" (1/1) ... [2022-09-16 11:29:19,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:29:20,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:29:20,324 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i[30826,30839] [2022-09-16 11:29:20,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:29:20,340 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:29:20,383 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i[30826,30839] [2022-09-16 11:29:20,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:29:20,416 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:29:20,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:29:20 WrapperNode [2022-09-16 11:29:20,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:29:20,418 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:29:20,418 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:29:20,418 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:29:20,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:29:20" (1/1) ... [2022-09-16 11:29:20,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:29:20" (1/1) ... [2022-09-16 11:29:20,465 INFO L138 Inliner]: procedures = 168, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2022-09-16 11:29:20,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:29:20,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:29:20,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:29:20,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:29:20,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:29:20" (1/1) ... [2022-09-16 11:29:20,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:29:20" (1/1) ... [2022-09-16 11:29:20,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:29:20" (1/1) ... [2022-09-16 11:29:20,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:29:20" (1/1) ... [2022-09-16 11:29:20,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:29:20" (1/1) ... [2022-09-16 11:29:20,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:29:20" (1/1) ... [2022-09-16 11:29:20,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:29:20" (1/1) ... [2022-09-16 11:29:20,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:29:20,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:29:20,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:29:20,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:29:20,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:29:20" (1/1) ... [2022-09-16 11:29:20,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:29:20,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:29:20,520 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 11:29:20,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 11:29:20,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:29:20,556 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 11:29:20,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 11:29:20,556 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 11:29:20,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 11:29:20,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:29:20,556 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-16 11:29:20,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:29:20,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:29:20,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:29:20,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:29:20,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:29:20,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:29:20,558 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:29:20,723 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:29:20,724 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:29:20,941 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:29:20,947 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:29:20,948 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:29:20,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:29:20 BoogieIcfgContainer [2022-09-16 11:29:20,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:29:20,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:29:20,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:29:20,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:29:20,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:29:19" (1/3) ... [2022-09-16 11:29:20,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b91230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:29:20, skipping insertion in model container [2022-09-16 11:29:20,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:29:20" (2/3) ... [2022-09-16 11:29:20,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b91230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:29:20, skipping insertion in model container [2022-09-16 11:29:20,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:29:20" (3/3) ... [2022-09-16 11:29:20,960 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2022-09-16 11:29:20,975 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:29:20,975 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 11:29:20,976 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:29:21,090 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-16 11:29:21,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 108 transitions, 232 flow [2022-09-16 11:29:21,215 INFO L130 PetriNetUnfolder]: 1/106 cut-off events. [2022-09-16 11:29:21,216 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-09-16 11:29:21,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 106 events. 1/106 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2022-09-16 11:29:21,218 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 108 transitions, 232 flow [2022-09-16 11:29:21,222 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 92 transitions, 193 flow [2022-09-16 11:29:21,238 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:29:21,245 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=false, 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;@475e8d4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:29:21,246 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-09-16 11:29:21,263 INFO L130 PetriNetUnfolder]: 0/46 cut-off events. [2022-09-16 11:29:21,263 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:29:21,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:29:21,264 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:29:21,265 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-09-16 11:29:21,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:29:21,269 INFO L85 PathProgramCache]: Analyzing trace with hash 773751333, now seen corresponding path program 1 times [2022-09-16 11:29:21,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:29:21,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100251847] [2022-09-16 11:29:21,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:29:21,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:29:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:29:21,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:29:21,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:29:21,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100251847] [2022-09-16 11:29:21,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100251847] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:29:21,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:29:21,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:29:21,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282771383] [2022-09-16 11:29:21,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:29:21,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:29:21,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:29:21,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:29:21,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:29:21,619 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 108 [2022-09-16 11:29:21,622 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 92 transitions, 193 flow. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:21,622 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:29:21,622 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 108 [2022-09-16 11:29:21,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:29:21,850 INFO L130 PetriNetUnfolder]: 36/320 cut-off events. [2022-09-16 11:29:21,851 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-09-16 11:29:21,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 443 conditions, 320 events. 36/320 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1552 event pairs, 12 based on Foata normal form. 0/272 useless extension candidates. Maximal degree in co-relation 353. Up to 37 conditions per place. [2022-09-16 11:29:21,857 INFO L137 encePairwiseOnDemand]: 99/108 looper letters, 35 selfloop transitions, 10 changer transitions 0/120 dead transitions. [2022-09-16 11:29:21,857 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 120 transitions, 351 flow [2022-09-16 11:29:21,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:29:21,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:29:21,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 479 transitions. [2022-09-16 11:29:21,876 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8870370370370371 [2022-09-16 11:29:21,877 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 479 transitions. [2022-09-16 11:29:21,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 479 transitions. [2022-09-16 11:29:21,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:29:21,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 479 transitions. [2022-09-16 11:29:21,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 95.8) internal successors, (479), 5 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:21,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 108.0) internal successors, (648), 6 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:21,902 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 108.0) internal successors, (648), 6 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:21,904 INFO L175 Difference]: Start difference. First operand has 99 places, 92 transitions, 193 flow. Second operand 5 states and 479 transitions. [2022-09-16 11:29:21,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 120 transitions, 351 flow [2022-09-16 11:29:21,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 120 transitions, 341 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:29:21,914 INFO L231 Difference]: Finished difference. Result has 104 places, 101 transitions, 270 flow [2022-09-16 11:29:21,916 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=270, PETRI_PLACES=104, PETRI_TRANSITIONS=101} [2022-09-16 11:29:21,919 INFO L287 CegarLoopForPetriNet]: 99 programPoint places, 5 predicate places. [2022-09-16 11:29:21,920 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 101 transitions, 270 flow [2022-09-16 11:29:21,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:21,921 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:29:21,921 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:29:21,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:29:21,921 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-09-16 11:29:21,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:29:21,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1783512197, now seen corresponding path program 1 times [2022-09-16 11:29:21,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:29:21,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287547301] [2022-09-16 11:29:21,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:29:21,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:29:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:29:22,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:29:22,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:29:22,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287547301] [2022-09-16 11:29:22,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287547301] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:29:22,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:29:22,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:29:22,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887199516] [2022-09-16 11:29:22,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:29:22,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:29:22,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:29:22,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:29:22,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:29:22,027 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 108 [2022-09-16 11:29:22,028 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 101 transitions, 270 flow. Second operand has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,028 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:29:22,028 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 108 [2022-09-16 11:29:22,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:29:22,103 INFO L130 PetriNetUnfolder]: 25/246 cut-off events. [2022-09-16 11:29:22,105 INFO L131 PetriNetUnfolder]: For 65/65 co-relation queries the response was YES. [2022-09-16 11:29:22,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 246 events. 25/246 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1029 event pairs, 7 based on Foata normal form. 13/238 useless extension candidates. Maximal degree in co-relation 282. Up to 41 conditions per place. [2022-09-16 11:29:22,111 INFO L137 encePairwiseOnDemand]: 103/108 looper letters, 20 selfloop transitions, 5 changer transitions 0/100 dead transitions. [2022-09-16 11:29:22,116 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 100 transitions, 306 flow [2022-09-16 11:29:22,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:29:22,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:29:22,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 367 transitions. [2022-09-16 11:29:22,119 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8495370370370371 [2022-09-16 11:29:22,119 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 367 transitions. [2022-09-16 11:29:22,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 367 transitions. [2022-09-16 11:29:22,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:29:22,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 367 transitions. [2022-09-16 11:29:22,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 108.0) internal successors, (540), 5 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,122 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 108.0) internal successors, (540), 5 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,122 INFO L175 Difference]: Start difference. First operand has 104 places, 101 transitions, 270 flow. Second operand 4 states and 367 transitions. [2022-09-16 11:29:22,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 100 transitions, 306 flow [2022-09-16 11:29:22,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 100 transitions, 303 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:29:22,130 INFO L231 Difference]: Finished difference. Result has 104 places, 95 transitions, 243 flow [2022-09-16 11:29:22,130 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=243, PETRI_PLACES=104, PETRI_TRANSITIONS=95} [2022-09-16 11:29:22,131 INFO L287 CegarLoopForPetriNet]: 99 programPoint places, 5 predicate places. [2022-09-16 11:29:22,131 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 95 transitions, 243 flow [2022-09-16 11:29:22,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,132 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:29:22,132 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:29:22,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:29:22,132 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-09-16 11:29:22,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:29:22,133 INFO L85 PathProgramCache]: Analyzing trace with hash 564995370, now seen corresponding path program 1 times [2022-09-16 11:29:22,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:29:22,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29569412] [2022-09-16 11:29:22,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:29:22,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:29:22,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:29:22,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:29:22,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:29:22,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29569412] [2022-09-16 11:29:22,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29569412] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:29:22,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:29:22,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:29:22,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49131097] [2022-09-16 11:29:22,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:29:22,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:29:22,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:29:22,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:29:22,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:29:22,216 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 108 [2022-09-16 11:29:22,217 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 95 transitions, 243 flow. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,217 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:29:22,217 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 108 [2022-09-16 11:29:22,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:29:22,301 INFO L130 PetriNetUnfolder]: 50/248 cut-off events. [2022-09-16 11:29:22,301 INFO L131 PetriNetUnfolder]: For 19/22 co-relation queries the response was YES. [2022-09-16 11:29:22,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 248 events. 50/248 cut-off events. For 19/22 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 916 event pairs, 0 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 316. Up to 57 conditions per place. [2022-09-16 11:29:22,302 INFO L137 encePairwiseOnDemand]: 101/108 looper letters, 23 selfloop transitions, 7 changer transitions 4/112 dead transitions. [2022-09-16 11:29:22,303 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 112 transitions, 352 flow [2022-09-16 11:29:22,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:29:22,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:29:22,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 467 transitions. [2022-09-16 11:29:22,304 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8648148148148148 [2022-09-16 11:29:22,304 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 467 transitions. [2022-09-16 11:29:22,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 467 transitions. [2022-09-16 11:29:22,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:29:22,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 467 transitions. [2022-09-16 11:29:22,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 108.0) internal successors, (648), 6 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,307 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 108.0) internal successors, (648), 6 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,308 INFO L175 Difference]: Start difference. First operand has 104 places, 95 transitions, 243 flow. Second operand 5 states and 467 transitions. [2022-09-16 11:29:22,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 112 transitions, 352 flow [2022-09-16 11:29:22,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 112 transitions, 342 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:29:22,313 INFO L231 Difference]: Finished difference. Result has 108 places, 97 transitions, 273 flow [2022-09-16 11:29:22,313 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=273, PETRI_PLACES=108, PETRI_TRANSITIONS=97} [2022-09-16 11:29:22,315 INFO L287 CegarLoopForPetriNet]: 99 programPoint places, 9 predicate places. [2022-09-16 11:29:22,315 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 97 transitions, 273 flow [2022-09-16 11:29:22,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,315 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:29:22,315 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:29:22,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:29:22,316 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-09-16 11:29:22,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:29:22,316 INFO L85 PathProgramCache]: Analyzing trace with hash 334987552, now seen corresponding path program 1 times [2022-09-16 11:29:22,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:29:22,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127814980] [2022-09-16 11:29:22,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:29:22,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:29:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:29:22,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:29:22,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:29:22,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127814980] [2022-09-16 11:29:22,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127814980] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:29:22,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:29:22,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:29:22,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778512682] [2022-09-16 11:29:22,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:29:22,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:29:22,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:29:22,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:29:22,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:29:22,424 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 108 [2022-09-16 11:29:22,424 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 97 transitions, 273 flow. Second operand has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,424 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:29:22,424 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 108 [2022-09-16 11:29:22,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:29:22,499 INFO L130 PetriNetUnfolder]: 34/231 cut-off events. [2022-09-16 11:29:22,499 INFO L131 PetriNetUnfolder]: For 87/99 co-relation queries the response was YES. [2022-09-16 11:29:22,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 429 conditions, 231 events. 34/231 cut-off events. For 87/99 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 826 event pairs, 5 based on Foata normal form. 10/232 useless extension candidates. Maximal degree in co-relation 277. Up to 41 conditions per place. [2022-09-16 11:29:22,501 INFO L137 encePairwiseOnDemand]: 101/108 looper letters, 15 selfloop transitions, 4 changer transitions 11/108 dead transitions. [2022-09-16 11:29:22,501 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 108 transitions, 366 flow [2022-09-16 11:29:22,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:29:22,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:29:22,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 464 transitions. [2022-09-16 11:29:22,502 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8592592592592593 [2022-09-16 11:29:22,502 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 464 transitions. [2022-09-16 11:29:22,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 464 transitions. [2022-09-16 11:29:22,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:29:22,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 464 transitions. [2022-09-16 11:29:22,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 108.0) internal successors, (648), 6 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,506 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 108.0) internal successors, (648), 6 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,506 INFO L175 Difference]: Start difference. First operand has 108 places, 97 transitions, 273 flow. Second operand 5 states and 464 transitions. [2022-09-16 11:29:22,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 108 transitions, 366 flow [2022-09-16 11:29:22,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 108 transitions, 338 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-09-16 11:29:22,512 INFO L231 Difference]: Finished difference. Result has 108 places, 94 transitions, 263 flow [2022-09-16 11:29:22,512 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=263, PETRI_PLACES=108, PETRI_TRANSITIONS=94} [2022-09-16 11:29:22,513 INFO L287 CegarLoopForPetriNet]: 99 programPoint places, 9 predicate places. [2022-09-16 11:29:22,513 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 94 transitions, 263 flow [2022-09-16 11:29:22,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,517 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:29:22,517 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:29:22,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:29:22,518 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-09-16 11:29:22,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:29:22,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1367224928, now seen corresponding path program 1 times [2022-09-16 11:29:22,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:29:22,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819711353] [2022-09-16 11:29:22,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:29:22,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:29:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:29:22,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:29:22,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:29:22,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819711353] [2022-09-16 11:29:22,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819711353] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:29:22,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:29:22,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:29:22,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944015076] [2022-09-16 11:29:22,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:29:22,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:29:22,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:29:22,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:29:22,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:29:22,586 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 108 [2022-09-16 11:29:22,587 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 94 transitions, 263 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,587 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:29:22,587 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 108 [2022-09-16 11:29:22,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:29:22,628 INFO L130 PetriNetUnfolder]: 11/194 cut-off events. [2022-09-16 11:29:22,628 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2022-09-16 11:29:22,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 194 events. 11/194 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 524 event pairs, 5 based on Foata normal form. 8/202 useless extension candidates. Maximal degree in co-relation 222. Up to 31 conditions per place. [2022-09-16 11:29:22,629 INFO L137 encePairwiseOnDemand]: 100/108 looper letters, 13 selfloop transitions, 8 changer transitions 0/95 dead transitions. [2022-09-16 11:29:22,629 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 95 transitions, 306 flow [2022-09-16 11:29:22,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:29:22,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:29:22,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2022-09-16 11:29:22,630 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8734567901234568 [2022-09-16 11:29:22,630 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 283 transitions. [2022-09-16 11:29:22,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 283 transitions. [2022-09-16 11:29:22,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:29:22,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 283 transitions. [2022-09-16 11:29:22,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,633 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,633 INFO L175 Difference]: Start difference. First operand has 108 places, 94 transitions, 263 flow. Second operand 3 states and 283 transitions. [2022-09-16 11:29:22,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 95 transitions, 306 flow [2022-09-16 11:29:22,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 95 transitions, 287 flow, removed 6 selfloop flow, removed 4 redundant places. [2022-09-16 11:29:22,636 INFO L231 Difference]: Finished difference. Result has 105 places, 93 transitions, 254 flow [2022-09-16 11:29:22,636 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=254, PETRI_PLACES=105, PETRI_TRANSITIONS=93} [2022-09-16 11:29:22,637 INFO L287 CegarLoopForPetriNet]: 99 programPoint places, 6 predicate places. [2022-09-16 11:29:22,637 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 93 transitions, 254 flow [2022-09-16 11:29:22,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,638 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:29:22,638 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:29:22,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:29:22,638 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-09-16 11:29:22,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:29:22,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1892900268, now seen corresponding path program 1 times [2022-09-16 11:29:22,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:29:22,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638897188] [2022-09-16 11:29:22,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:29:22,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:29:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:29:22,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:29:22,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:29:22,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638897188] [2022-09-16 11:29:22,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638897188] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:29:22,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:29:22,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:29:22,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370122689] [2022-09-16 11:29:22,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:29:22,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:29:22,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:29:22,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:29:22,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:29:22,701 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 108 [2022-09-16 11:29:22,702 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 93 transitions, 254 flow. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,702 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:29:22,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 108 [2022-09-16 11:29:22,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:29:22,767 INFO L130 PetriNetUnfolder]: 12/188 cut-off events. [2022-09-16 11:29:22,767 INFO L131 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2022-09-16 11:29:22,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 188 events. 12/188 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 536 event pairs, 5 based on Foata normal form. 2/190 useless extension candidates. Maximal degree in co-relation 219. Up to 24 conditions per place. [2022-09-16 11:29:22,769 INFO L137 encePairwiseOnDemand]: 102/108 looper letters, 17 selfloop transitions, 8 changer transitions 0/99 dead transitions. [2022-09-16 11:29:22,769 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 99 transitions, 320 flow [2022-09-16 11:29:22,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:29:22,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-16 11:29:22,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 627 transitions. [2022-09-16 11:29:22,771 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8293650793650794 [2022-09-16 11:29:22,771 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 627 transitions. [2022-09-16 11:29:22,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 627 transitions. [2022-09-16 11:29:22,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:29:22,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 627 transitions. [2022-09-16 11:29:22,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 89.57142857142857) internal successors, (627), 7 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 108.0) internal successors, (864), 8 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,788 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 108.0) internal successors, (864), 8 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,788 INFO L175 Difference]: Start difference. First operand has 105 places, 93 transitions, 254 flow. Second operand 7 states and 627 transitions. [2022-09-16 11:29:22,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 99 transitions, 320 flow [2022-09-16 11:29:22,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 99 transitions, 312 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:29:22,790 INFO L231 Difference]: Finished difference. Result has 109 places, 92 transitions, 258 flow [2022-09-16 11:29:22,790 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=258, PETRI_PLACES=109, PETRI_TRANSITIONS=92} [2022-09-16 11:29:22,791 INFO L287 CegarLoopForPetriNet]: 99 programPoint places, 10 predicate places. [2022-09-16 11:29:22,791 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 92 transitions, 258 flow [2022-09-16 11:29:22,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:29:22,795 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:29:22,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 11:29:22,796 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-09-16 11:29:22,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:29:22,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1459472573, now seen corresponding path program 1 times [2022-09-16 11:29:22,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:29:22,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925527986] [2022-09-16 11:29:22,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:29:22,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:29:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:29:22,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:29:22,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:29:22,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925527986] [2022-09-16 11:29:22,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925527986] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:29:22,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:29:22,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:29:22,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362569382] [2022-09-16 11:29:22,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:29:22,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:29:22,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:29:22,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:29:22,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:29:22,860 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 108 [2022-09-16 11:29:22,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 92 transitions, 258 flow. Second operand has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,860 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:29:22,860 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 108 [2022-09-16 11:29:22,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:29:22,919 INFO L130 PetriNetUnfolder]: 12/188 cut-off events. [2022-09-16 11:29:22,920 INFO L131 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2022-09-16 11:29:22,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 188 events. 12/188 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 487 event pairs, 3 based on Foata normal form. 3/191 useless extension candidates. Maximal degree in co-relation 219. Up to 17 conditions per place. [2022-09-16 11:29:22,921 INFO L137 encePairwiseOnDemand]: 102/108 looper letters, 19 selfloop transitions, 6 changer transitions 0/99 dead transitions. [2022-09-16 11:29:22,921 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 99 transitions, 327 flow [2022-09-16 11:29:22,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:29:22,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-16 11:29:22,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 542 transitions. [2022-09-16 11:29:22,923 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8364197530864198 [2022-09-16 11:29:22,923 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 542 transitions. [2022-09-16 11:29:22,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 542 transitions. [2022-09-16 11:29:22,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:29:22,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 542 transitions. [2022-09-16 11:29:22,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.33333333333333) internal successors, (542), 6 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 108.0) internal successors, (756), 7 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,927 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 108.0) internal successors, (756), 7 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,927 INFO L175 Difference]: Start difference. First operand has 109 places, 92 transitions, 258 flow. Second operand 6 states and 542 transitions. [2022-09-16 11:29:22,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 99 transitions, 327 flow [2022-09-16 11:29:22,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 99 transitions, 309 flow, removed 2 selfloop flow, removed 5 redundant places. [2022-09-16 11:29:22,929 INFO L231 Difference]: Finished difference. Result has 108 places, 91 transitions, 248 flow [2022-09-16 11:29:22,930 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=248, PETRI_PLACES=108, PETRI_TRANSITIONS=91} [2022-09-16 11:29:22,930 INFO L287 CegarLoopForPetriNet]: 99 programPoint places, 9 predicate places. [2022-09-16 11:29:22,931 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 91 transitions, 248 flow [2022-09-16 11:29:22,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:29:22,931 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:29:22,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 11:29:22,932 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-09-16 11:29:22,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:29:22,932 INFO L85 PathProgramCache]: Analyzing trace with hash 799770908, now seen corresponding path program 1 times [2022-09-16 11:29:22,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:29:22,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707791500] [2022-09-16 11:29:22,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:29:22,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:29:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:29:22,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:29:22,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:29:22,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707791500] [2022-09-16 11:29:22,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707791500] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:29:22,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:29:22,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:29:22,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109294526] [2022-09-16 11:29:22,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:29:22,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:29:22,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:29:22,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:29:22,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:29:22,995 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 108 [2022-09-16 11:29:22,996 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 91 transitions, 248 flow. Second operand has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:22,996 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:29:22,996 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 108 [2022-09-16 11:29:22,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:29:23,031 INFO L130 PetriNetUnfolder]: 11/172 cut-off events. [2022-09-16 11:29:23,031 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-09-16 11:29:23,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 172 events. 11/172 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 435 event pairs, 6 based on Foata normal form. 1/171 useless extension candidates. Maximal degree in co-relation 180. Up to 29 conditions per place. [2022-09-16 11:29:23,032 INFO L137 encePairwiseOnDemand]: 104/108 looper letters, 8 selfloop transitions, 2 changer transitions 11/91 dead transitions. [2022-09-16 11:29:23,032 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 91 transitions, 280 flow [2022-09-16 11:29:23,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:29:23,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:29:23,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 360 transitions. [2022-09-16 11:29:23,034 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2022-09-16 11:29:23,034 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 360 transitions. [2022-09-16 11:29:23,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 360 transitions. [2022-09-16 11:29:23,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:29:23,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 360 transitions. [2022-09-16 11:29:23,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:23,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 108.0) internal successors, (540), 5 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:23,036 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 108.0) internal successors, (540), 5 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:23,036 INFO L175 Difference]: Start difference. First operand has 108 places, 91 transitions, 248 flow. Second operand 4 states and 360 transitions. [2022-09-16 11:29:23,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 91 transitions, 280 flow [2022-09-16 11:29:23,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 91 transitions, 262 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-09-16 11:29:23,038 INFO L231 Difference]: Finished difference. Result has 104 places, 80 transitions, 200 flow [2022-09-16 11:29:23,038 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=200, PETRI_PLACES=104, PETRI_TRANSITIONS=80} [2022-09-16 11:29:23,039 INFO L287 CegarLoopForPetriNet]: 99 programPoint places, 5 predicate places. [2022-09-16 11:29:23,039 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 80 transitions, 200 flow [2022-09-16 11:29:23,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:23,039 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:29:23,039 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:29:23,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 11:29:23,040 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-09-16 11:29:23,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:29:23,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1710742397, now seen corresponding path program 1 times [2022-09-16 11:29:23,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:29:23,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769402921] [2022-09-16 11:29:23,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:29:23,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:29:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:29:23,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:29:23,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:29:23,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769402921] [2022-09-16 11:29:23,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769402921] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:29:23,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:29:23,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:29:23,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488994961] [2022-09-16 11:29:23,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:29:23,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:29:23,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:29:23,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:29:23,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:29:23,091 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 108 [2022-09-16 11:29:23,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 80 transitions, 200 flow. Second operand has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:23,092 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:29:23,092 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 108 [2022-09-16 11:29:23,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:29:23,115 INFO L130 PetriNetUnfolder]: 2/109 cut-off events. [2022-09-16 11:29:23,115 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-09-16 11:29:23,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 109 events. 2/109 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 111 event pairs, 0 based on Foata normal form. 1/110 useless extension candidates. Maximal degree in co-relation 148. Up to 8 conditions per place. [2022-09-16 11:29:23,116 INFO L137 encePairwiseOnDemand]: 104/108 looper letters, 0 selfloop transitions, 0 changer transitions 79/79 dead transitions. [2022-09-16 11:29:23,116 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 79 transitions, 214 flow [2022-09-16 11:29:23,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:29:23,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:29:23,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 440 transitions. [2022-09-16 11:29:23,117 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8148148148148148 [2022-09-16 11:29:23,117 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 440 transitions. [2022-09-16 11:29:23,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 440 transitions. [2022-09-16 11:29:23,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:29:23,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 440 transitions. [2022-09-16 11:29:23,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:23,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 108.0) internal successors, (648), 6 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:23,120 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 108.0) internal successors, (648), 6 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:23,120 INFO L175 Difference]: Start difference. First operand has 104 places, 80 transitions, 200 flow. Second operand 5 states and 440 transitions. [2022-09-16 11:29:23,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 79 transitions, 214 flow [2022-09-16 11:29:23,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 79 transitions, 209 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:29:23,121 INFO L231 Difference]: Finished difference. Result has 94 places, 0 transitions, 0 flow [2022-09-16 11:29:23,122 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=94, PETRI_TRANSITIONS=0} [2022-09-16 11:29:23,122 INFO L287 CegarLoopForPetriNet]: 99 programPoint places, -5 predicate places. [2022-09-16 11:29:23,122 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 0 transitions, 0 flow [2022-09-16 11:29:23,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:29:23,125 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2022-09-16 11:29:23,126 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-09-16 11:29:23,126 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-09-16 11:29:23,126 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-09-16 11:29:23,126 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-09-16 11:29:23,126 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-09-16 11:29:23,126 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-09-16 11:29:23,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-09-16 11:29:23,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2022-09-16 11:29:23,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2022-09-16 11:29:23,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-09-16 11:29:23,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-09-16 11:29:23,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-09-16 11:29:23,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-09-16 11:29:23,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-09-16 11:29:23,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-09-16 11:29:23,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-09-16 11:29:23,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-09-16 11:29:23,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 11:29:23,128 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:29:23,133 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:29:23,133 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:29:23,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:29:23 BasicIcfg [2022-09-16 11:29:23,137 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:29:23,138 INFO L158 Benchmark]: Toolchain (without parser) took 3219.16ms. Allocated memory was 190.8MB in the beginning and 229.6MB in the end (delta: 38.8MB). Free memory was 133.4MB in the beginning and 133.8MB in the end (delta: -315.8kB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. [2022-09-16 11:29:23,138 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 190.8MB. Free memory is still 151.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:29:23,138 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.53ms. Allocated memory is still 190.8MB. Free memory was 133.3MB in the beginning and 155.3MB in the end (delta: -22.0MB). Peak memory consumption was 11.4MB. Max. memory is 8.0GB. [2022-09-16 11:29:23,138 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.11ms. Allocated memory is still 190.8MB. Free memory was 155.3MB in the beginning and 153.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:29:23,138 INFO L158 Benchmark]: Boogie Preprocessor took 21.37ms. Allocated memory is still 190.8MB. Free memory was 153.2MB in the beginning and 151.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:29:23,139 INFO L158 Benchmark]: RCFGBuilder took 461.36ms. Allocated memory is still 190.8MB. Free memory was 151.8MB in the beginning and 137.7MB in the end (delta: 14.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-09-16 11:29:23,139 INFO L158 Benchmark]: TraceAbstraction took 2185.69ms. Allocated memory was 190.8MB in the beginning and 229.6MB in the end (delta: 38.8MB). Free memory was 137.1MB in the beginning and 133.8MB in the end (delta: 3.3MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. [2022-09-16 11:29:23,140 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 190.8MB. Free memory is still 151.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 497.53ms. Allocated memory is still 190.8MB. Free memory was 133.3MB in the beginning and 155.3MB in the end (delta: -22.0MB). Peak memory consumption was 11.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.11ms. Allocated memory is still 190.8MB. Free memory was 155.3MB in the beginning and 153.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.37ms. Allocated memory is still 190.8MB. Free memory was 153.2MB in the beginning and 151.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 461.36ms. Allocated memory is still 190.8MB. Free memory was 151.8MB in the beginning and 137.7MB in the end (delta: 14.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2185.69ms. Allocated memory was 190.8MB in the beginning and 229.6MB in the end (delta: 38.8MB). Free memory was 137.1MB in the beginning and 133.8MB in the end (delta: 3.3MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 697]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 697]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 700]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 700]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 707]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 707]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 710]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 710]: 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 5 procedures, 154 locations, 18 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: 2.0s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 132 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 132 mSDsluCounter, 76 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 64 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 268 IncrementalHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 44 mSDtfsCounter, 268 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=273occurred in iteration=3, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 500 NumberOfCodeBlocks, 500 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 491 ConstructedInterpolants, 0 QuantifiedInterpolants, 845 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:29:23,174 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...