/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/weaver/parallel-parallel-sum-1-dsl.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:50:20,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:50:20,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:50:20,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:50:20,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:50:20,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:50:20,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:50:20,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:50:20,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:50:20,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:50:20,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:50:20,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:50:20,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:50:20,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:50:20,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:50:20,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:50:20,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:50:20,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:50:20,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:50:20,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:50:20,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:50:20,530 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:50:20,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:50:20,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:50:20,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:50:20,546 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:50:20,546 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:50:20,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:50:20,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:50:20,548 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-09-16 11:50:20,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:50:20,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:50:20,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:50:20,555 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 11:50:20,587 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:50:20,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:50:20,588 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:50:20,589 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:50:20,589 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:50:20,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:50:20,589 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:50:20,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:50:20,590 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:50:20,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:50:20,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:50:20,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:50:20,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:50:20,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:50:20,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:50:20,591 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:50:20,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:50:20,591 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:50:20,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:50:20,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:50:20,592 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:50:20,592 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:50:20,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:50:20,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:50:20,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:50:20,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:50:20,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:50:20,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:50:20,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:50:20,594 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:50:20,594 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:50:20,594 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:50:20,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:50:20,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:50:20,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:50:20,851 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:50:20,852 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:50:20,853 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-09-16 11:50:20,922 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f0bda9ba/785af4160f1547b3b4c6d43c2957e078/FLAG111b90835 [2022-09-16 11:50:21,334 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:50:21,335 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-09-16 11:50:21,341 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f0bda9ba/785af4160f1547b3b4c6d43c2957e078/FLAG111b90835 [2022-09-16 11:50:21,738 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f0bda9ba/785af4160f1547b3b4c6d43c2957e078 [2022-09-16 11:50:21,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:50:21,742 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:50:21,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:50:21,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:50:21,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:50:21,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:50:21" (1/1) ... [2022-09-16 11:50:21,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@786fa4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:50:21, skipping insertion in model container [2022-09-16 11:50:21,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:50:21" (1/1) ... [2022-09-16 11:50:21,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:50:21,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:50:21,958 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-09-16 11:50:21,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:50:21,972 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:50:22,007 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-09-16 11:50:22,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:50:22,023 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:50:22,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:50:22 WrapperNode [2022-09-16 11:50:22,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:50:22,025 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:50:22,025 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:50:22,025 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:50:22,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:50:22" (1/1) ... [2022-09-16 11:50:22,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:50:22" (1/1) ... [2022-09-16 11:50:22,085 INFO L138 Inliner]: procedures = 29, calls = 95, calls flagged for inlining = 21, calls inlined = 27, statements flattened = 357 [2022-09-16 11:50:22,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:50:22,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:50:22,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:50:22,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:50:22,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:50:22" (1/1) ... [2022-09-16 11:50:22,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:50:22" (1/1) ... [2022-09-16 11:50:22,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:50:22" (1/1) ... [2022-09-16 11:50:22,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:50:22" (1/1) ... [2022-09-16 11:50:22,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:50:22" (1/1) ... [2022-09-16 11:50:22,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:50:22" (1/1) ... [2022-09-16 11:50:22,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:50:22" (1/1) ... [2022-09-16 11:50:22,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:50:22,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:50:22,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:50:22,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:50:22,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:50:22" (1/1) ... [2022-09-16 11:50:22,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:50:22,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:50:22,185 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 11:50:22,191 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 11:50:22,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:50:22,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:50:22,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:50:22,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:50:22,219 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 11:50:22,220 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 11:50:22,220 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 11:50:22,220 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 11:50:22,220 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-16 11:50:22,220 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-16 11:50:22,220 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-09-16 11:50:22,220 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-09-16 11:50:22,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:50:22,221 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-09-16 11:50:22,221 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-09-16 11:50:22,221 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-09-16 11:50:22,221 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-09-16 11:50:22,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:50:22,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:50:22,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 11:50:22,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:50:22,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:50:22,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:50:22,223 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 11:50:22,348 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:50:22,350 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:50:22,903 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:50:23,302 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:50:23,303 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-09-16 11:50:23,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:50:23 BoogieIcfgContainer [2022-09-16 11:50:23,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:50:23,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:50:23,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:50:23,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:50:23,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:50:21" (1/3) ... [2022-09-16 11:50:23,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e599667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:50:23, skipping insertion in model container [2022-09-16 11:50:23,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:50:22" (2/3) ... [2022-09-16 11:50:23,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e599667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:50:23, skipping insertion in model container [2022-09-16 11:50:23,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:50:23" (3/3) ... [2022-09-16 11:50:23,314 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2022-09-16 11:50:23,332 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:50:23,332 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2022-09-16 11:50:23,332 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:50:23,606 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-09-16 11:50:23,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 300 places, 299 transitions, 670 flow [2022-09-16 11:50:23,811 INFO L130 PetriNetUnfolder]: 18/271 cut-off events. [2022-09-16 11:50:23,811 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-09-16 11:50:23,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 271 events. 18/271 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 495 event pairs, 0 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 232. Up to 3 conditions per place. [2022-09-16 11:50:23,822 INFO L82 GeneralOperation]: Start removeDead. Operand has 300 places, 299 transitions, 670 flow [2022-09-16 11:50:23,830 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 252 transitions, 549 flow [2022-09-16 11:50:23,846 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:50:23,855 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;@4a2e7a6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:50:23,855 INFO L358 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2022-09-16 11:50:23,869 INFO L130 PetriNetUnfolder]: 1/60 cut-off events. [2022-09-16 11:50:23,869 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:50:23,870 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:50:23,870 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] [2022-09-16 11:50:23,871 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 75 more)] === [2022-09-16 11:50:23,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:50:23,876 INFO L85 PathProgramCache]: Analyzing trace with hash 149972340, now seen corresponding path program 1 times [2022-09-16 11:50:23,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:50:23,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137462444] [2022-09-16 11:50:23,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:50:23,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:50:24,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:50:24,191 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 11:50:24,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:50:24,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137462444] [2022-09-16 11:50:24,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137462444] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:50:24,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:50:24,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:50:24,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051900644] [2022-09-16 11:50:24,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:50:24,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:50:24,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:50:24,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:50:24,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:50:24,250 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 303 [2022-09-16 11:50:24,258 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 252 transitions, 549 flow. Second operand has 5 states, 5 states have (on average 197.4) internal successors, (987), 5 states have internal predecessors, (987), 0 states have call successors, (0), 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 11:50:24,259 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:50:24,259 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 303 [2022-09-16 11:50:24,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:50:31,134 INFO L130 PetriNetUnfolder]: 22009/30832 cut-off events. [2022-09-16 11:50:31,134 INFO L131 PetriNetUnfolder]: For 6381/6381 co-relation queries the response was YES. [2022-09-16 11:50:31,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66223 conditions, 30832 events. 22009/30832 cut-off events. For 6381/6381 co-relation queries the response was YES. Maximal size of possible extension queue 2474. Compared 212591 event pairs, 17472 based on Foata normal form. 3028/16446 useless extension candidates. Maximal degree in co-relation 65414. Up to 29079 conditions per place. [2022-09-16 11:50:31,748 INFO L137 encePairwiseOnDemand]: 277/303 looper letters, 62 selfloop transitions, 5 changer transitions 3/231 dead transitions. [2022-09-16 11:50:31,748 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 231 transitions, 647 flow [2022-09-16 11:50:31,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:50:31,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:50:31,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1071 transitions. [2022-09-16 11:50:31,770 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7069306930693069 [2022-09-16 11:50:31,770 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1071 transitions. [2022-09-16 11:50:31,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1071 transitions. [2022-09-16 11:50:31,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:50:31,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1071 transitions. [2022-09-16 11:50:31,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:50:31,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 303.0) internal successors, (1818), 6 states have internal predecessors, (1818), 0 states have call successors, (0), 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 11:50:31,796 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 303.0) internal successors, (1818), 6 states have internal predecessors, (1818), 0 states have call successors, (0), 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 11:50:31,797 INFO L175 Difference]: Start difference. First operand has 254 places, 252 transitions, 549 flow. Second operand 5 states and 1071 transitions. [2022-09-16 11:50:31,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 231 transitions, 647 flow [2022-09-16 11:50:31,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 231 transitions, 618 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-09-16 11:50:31,977 INFO L231 Difference]: Finished difference. Result has 234 places, 228 transitions, 482 flow [2022-09-16 11:50:31,979 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=482, PETRI_PLACES=234, PETRI_TRANSITIONS=228} [2022-09-16 11:50:31,982 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -20 predicate places. [2022-09-16 11:50:31,983 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 228 transitions, 482 flow [2022-09-16 11:50:31,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 197.4) internal successors, (987), 5 states have internal predecessors, (987), 0 states have call successors, (0), 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 11:50:31,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:50:31,985 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] [2022-09-16 11:50:31,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:50:31,985 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 75 more)] === [2022-09-16 11:50:31,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:50:31,986 INFO L85 PathProgramCache]: Analyzing trace with hash 354176334, now seen corresponding path program 1 times [2022-09-16 11:50:31,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:50:31,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632607091] [2022-09-16 11:50:31,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:50:31,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:50:32,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:50:32,060 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 11:50:32,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:50:32,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632607091] [2022-09-16 11:50:32,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632607091] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:50:32,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:50:32,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:50:32,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515256822] [2022-09-16 11:50:32,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:50:32,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:50:32,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:50:32,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:50:32,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:50:32,065 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 303 [2022-09-16 11:50:32,066 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 228 transitions, 482 flow. Second operand has 4 states, 4 states have (on average 214.0) internal successors, (856), 4 states have internal predecessors, (856), 0 states have call successors, (0), 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 11:50:32,067 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:50:32,067 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 303 [2022-09-16 11:50:32,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:50:37,215 INFO L130 PetriNetUnfolder]: 22009/30828 cut-off events. [2022-09-16 11:50:37,216 INFO L131 PetriNetUnfolder]: For 1597/1597 co-relation queries the response was YES. [2022-09-16 11:50:37,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61587 conditions, 30828 events. 22009/30828 cut-off events. For 1597/1597 co-relation queries the response was YES. Maximal size of possible extension queue 2474. Compared 211773 event pairs, 17472 based on Foata normal form. 0/13418 useless extension candidates. Maximal degree in co-relation 61517. Up to 29070 conditions per place. [2022-09-16 11:50:37,529 INFO L137 encePairwiseOnDemand]: 299/303 looper letters, 55 selfloop transitions, 3 changer transitions 0/227 dead transitions. [2022-09-16 11:50:37,530 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 227 transitions, 596 flow [2022-09-16 11:50:37,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:50:37,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:50:37,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 907 transitions. [2022-09-16 11:50:37,533 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7483498349834984 [2022-09-16 11:50:37,533 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 907 transitions. [2022-09-16 11:50:37,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 907 transitions. [2022-09-16 11:50:37,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:50:37,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 907 transitions. [2022-09-16 11:50:37,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 226.75) internal successors, (907), 4 states have internal predecessors, (907), 0 states have call successors, (0), 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 11:50:37,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 303.0) internal successors, (1515), 5 states have internal predecessors, (1515), 0 states have call successors, (0), 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 11:50:37,539 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 303.0) internal successors, (1515), 5 states have internal predecessors, (1515), 0 states have call successors, (0), 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 11:50:37,539 INFO L175 Difference]: Start difference. First operand has 234 places, 228 transitions, 482 flow. Second operand 4 states and 907 transitions. [2022-09-16 11:50:37,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 227 transitions, 596 flow [2022-09-16 11:50:37,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 227 transitions, 586 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:50:37,549 INFO L231 Difference]: Finished difference. Result has 229 places, 227 transitions, 476 flow [2022-09-16 11:50:37,550 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=476, PETRI_PLACES=229, PETRI_TRANSITIONS=227} [2022-09-16 11:50:37,551 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -25 predicate places. [2022-09-16 11:50:37,551 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 227 transitions, 476 flow [2022-09-16 11:50:37,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 214.0) internal successors, (856), 4 states have internal predecessors, (856), 0 states have call successors, (0), 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 11:50:37,552 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:50:37,552 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:50:37,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:50:37,553 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 75 more)] === [2022-09-16 11:50:37,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:50:37,553 INFO L85 PathProgramCache]: Analyzing trace with hash -486710488, now seen corresponding path program 1 times [2022-09-16 11:50:37,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:50:37,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993836733] [2022-09-16 11:50:37,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:50:37,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:50:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:50:37,645 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 11:50:37,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:50:37,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993836733] [2022-09-16 11:50:37,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993836733] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:50:37,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:50:37,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:50:37,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50555979] [2022-09-16 11:50:37,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:50:37,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:50:37,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:50:37,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:50:37,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:50:37,648 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 303 [2022-09-16 11:50:37,649 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 227 transitions, 476 flow. Second operand has 4 states, 4 states have (on average 212.5) internal successors, (850), 4 states have internal predecessors, (850), 0 states have call successors, (0), 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 11:50:37,649 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:50:37,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 303 [2022-09-16 11:50:37,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:50:47,796 INFO L130 PetriNetUnfolder]: 44017/61574 cut-off events. [2022-09-16 11:50:47,797 INFO L131 PetriNetUnfolder]: For 3190/3190 co-relation queries the response was YES. [2022-09-16 11:50:48,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123084 conditions, 61574 events. 44017/61574 cut-off events. For 3190/3190 co-relation queries the response was YES. Maximal size of possible extension queue 3383. Compared 450849 event pairs, 34944 based on Foata normal form. 0/26756 useless extension candidates. Maximal degree in co-relation 123051. Up to 29076 conditions per place. [2022-09-16 11:50:48,374 INFO L137 encePairwiseOnDemand]: 297/303 looper letters, 114 selfloop transitions, 4 changer transitions 0/284 dead transitions. [2022-09-16 11:50:48,374 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 284 transitions, 842 flow [2022-09-16 11:50:48,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:50:48,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:50:48,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1175 transitions. [2022-09-16 11:50:48,378 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7755775577557755 [2022-09-16 11:50:48,378 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1175 transitions. [2022-09-16 11:50:48,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1175 transitions. [2022-09-16 11:50:48,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:50:48,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1175 transitions. [2022-09-16 11:50:48,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 235.0) internal successors, (1175), 5 states have internal predecessors, (1175), 0 states have call successors, (0), 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 11:50:48,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 303.0) internal successors, (1818), 6 states have internal predecessors, (1818), 0 states have call successors, (0), 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 11:50:48,386 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 303.0) internal successors, (1818), 6 states have internal predecessors, (1818), 0 states have call successors, (0), 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 11:50:48,386 INFO L175 Difference]: Start difference. First operand has 229 places, 227 transitions, 476 flow. Second operand 5 states and 1175 transitions. [2022-09-16 11:50:48,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 284 transitions, 842 flow [2022-09-16 11:50:48,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 284 transitions, 836 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:50:48,391 INFO L231 Difference]: Finished difference. Result has 233 places, 230 transitions, 500 flow [2022-09-16 11:50:48,392 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=500, PETRI_PLACES=233, PETRI_TRANSITIONS=230} [2022-09-16 11:50:48,392 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -21 predicate places. [2022-09-16 11:50:48,393 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 230 transitions, 500 flow [2022-09-16 11:50:48,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 212.5) internal successors, (850), 4 states have internal predecessors, (850), 0 states have call successors, (0), 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 11:50:48,393 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:50:48,394 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:50:48,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:50:48,394 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 75 more)] === [2022-09-16 11:50:48,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:50:48,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1997309705, now seen corresponding path program 1 times [2022-09-16 11:50:48,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:50:48,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704626738] [2022-09-16 11:50:48,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:50:48,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:50:48,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:50:48,478 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:50:48,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:50:48,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704626738] [2022-09-16 11:50:48,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704626738] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:50:48,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495715042] [2022-09-16 11:50:48,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:50:48,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:50:48,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:50:48,481 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:50:48,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-16 11:50:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:50:48,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:50:48,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:50:48,751 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:50:48,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:50:48,820 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:50:48,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495715042] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:50:48,821 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:50:48,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-09-16 11:50:48,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670566007] [2022-09-16 11:50:48,822 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:50:48,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 11:50:48,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:50:48,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 11:50:48,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-09-16 11:50:48,827 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 303 [2022-09-16 11:50:48,830 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 230 transitions, 500 flow. Second operand has 12 states, 12 states have (on average 213.66666666666666) internal successors, (2564), 12 states have internal predecessors, (2564), 0 states have call successors, (0), 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 11:50:48,830 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:50:48,830 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 303 [2022-09-16 11:50:48,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:51:18,241 INFO L130 PetriNetUnfolder]: 110041/153814 cut-off events. [2022-09-16 11:51:18,242 INFO L131 PetriNetUnfolder]: For 7986/7986 co-relation queries the response was YES. [2022-09-16 11:51:19,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307599 conditions, 153814 events. 110041/153814 cut-off events. For 7986/7986 co-relation queries the response was YES. Maximal size of possible extension queue 4003. Compared 1188351 event pairs, 87360 based on Foata normal form. 3/66777 useless extension candidates. Maximal degree in co-relation 246008. Up to 29071 conditions per place. [2022-09-16 11:51:19,995 INFO L137 encePairwiseOnDemand]: 296/303 looper letters, 273 selfloop transitions, 18 changer transitions 0/457 dead transitions. [2022-09-16 11:51:19,995 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 457 transitions, 1622 flow [2022-09-16 11:51:19,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 11:51:19,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-09-16 11:51:20,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4092 transitions. [2022-09-16 11:51:20,005 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7502750275027503 [2022-09-16 11:51:20,006 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4092 transitions. [2022-09-16 11:51:20,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4092 transitions. [2022-09-16 11:51:20,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:51:20,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4092 transitions. [2022-09-16 11:51:20,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 227.33333333333334) internal successors, (4092), 18 states have internal predecessors, (4092), 0 states have call successors, (0), 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 11:51:20,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 303.0) internal successors, (5757), 19 states have internal predecessors, (5757), 0 states have call successors, (0), 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 11:51:20,028 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 303.0) internal successors, (5757), 19 states have internal predecessors, (5757), 0 states have call successors, (0), 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 11:51:20,028 INFO L175 Difference]: Start difference. First operand has 233 places, 230 transitions, 500 flow. Second operand 18 states and 4092 transitions. [2022-09-16 11:51:20,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 457 transitions, 1622 flow [2022-09-16 11:51:20,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 457 transitions, 1620 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:51:20,035 INFO L231 Difference]: Finished difference. Result has 253 places, 242 transitions, 604 flow [2022-09-16 11:51:20,036 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=604, PETRI_PLACES=253, PETRI_TRANSITIONS=242} [2022-09-16 11:51:20,036 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -1 predicate places. [2022-09-16 11:51:20,036 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 242 transitions, 604 flow [2022-09-16 11:51:20,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 213.66666666666666) internal successors, (2564), 12 states have internal predecessors, (2564), 0 states have call successors, (0), 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 11:51:20,038 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:51:20,038 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:51:20,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-09-16 11:51:20,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:51:20,252 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 75 more)] === [2022-09-16 11:51:20,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:51:20,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1787059817, now seen corresponding path program 1 times [2022-09-16 11:51:20,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:51:20,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816637937] [2022-09-16 11:51:20,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:51:20,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:51:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:51:20,345 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:51:20,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:51:20,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816637937] [2022-09-16 11:51:20,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816637937] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:51:20,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433133090] [2022-09-16 11:51:20,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:51:20,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:51:20,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:51:20,348 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:51:20,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-16 11:51:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:51:20,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:51:20,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:51:20,544 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:51:20,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:51:20,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433133090] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:51:20,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:51:20,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 11:51:20,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050527526] [2022-09-16 11:51:20,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:51:20,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:51:20,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:51:20,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:51:20,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:51:20,547 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 303 [2022-09-16 11:51:20,549 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 242 transitions, 604 flow. Second operand has 6 states, 6 states have (on average 213.33333333333334) internal successors, (1280), 6 states have internal predecessors, (1280), 0 states have call successors, (0), 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 11:51:20,549 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:51:20,549 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 303 [2022-09-16 11:51:20,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand