/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-wmm/mix027_power.opt_pso.opt_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:32:37,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:32:37,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:32:37,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-09-16 11:32:37,371 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:32:37,372 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:32:37,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:32:37,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:32:37,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:32:37,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:32:37,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:32:37,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:32:37,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:32:37,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:32:37,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:32:37,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:32:37,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 11:32:37,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:32:37,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:32:37,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:32:37,412 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 11:32:37,438 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:32:37,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:32:37,439 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:32:37,440 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:32:37,440 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:32:37,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:32:37,440 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:32:37,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:32:37,440 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:32:37,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:32:37,441 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:32:37,441 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:32:37,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:32:37,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:32:37,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:32:37,441 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:32:37,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:32:37,442 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:32:37,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:32:37,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:32:37,442 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:32:37,442 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:32:37,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:32:37,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:32:37,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:32:37,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:32:37,443 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:32:37,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:32:37,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:32:37,444 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:32:37,444 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:32:37,444 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:32:37,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:32:37,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:32:37,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:32:37,682 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:32:37,682 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:32:37,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix027_power.opt_pso.opt_rmo.opt.i [2022-09-16 11:32:37,727 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5789ba7e/1c08600dd9ac46408fa09a45c036e154/FLAGc7b68839e [2022-09-16 11:32:38,132 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:32:38,133 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix027_power.opt_pso.opt_rmo.opt.i [2022-09-16 11:32:38,159 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5789ba7e/1c08600dd9ac46408fa09a45c036e154/FLAGc7b68839e [2022-09-16 11:32:38,492 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5789ba7e/1c08600dd9ac46408fa09a45c036e154 [2022-09-16 11:32:38,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:32:38,495 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:32:38,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:32:38,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:32:38,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:32:38,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:32:38" (1/1) ... [2022-09-16 11:32:38,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fdd96ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:38, skipping insertion in model container [2022-09-16 11:32:38,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:32:38" (1/1) ... [2022-09-16 11:32:38,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:32:38,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:32:38,747 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-wmm/mix027_power.opt_pso.opt_rmo.opt.i[966,979] [2022-09-16 11:32:38,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:32:38,940 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:32:38,949 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-wmm/mix027_power.opt_pso.opt_rmo.opt.i[966,979] [2022-09-16 11:32:38,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:32:39,029 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:32:39,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:39 WrapperNode [2022-09-16 11:32:39,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:32:39,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:32:39,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:32:39,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:32:39,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:39" (1/1) ... [2022-09-16 11:32:39,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:39" (1/1) ... [2022-09-16 11:32:39,088 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 194 [2022-09-16 11:32:39,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:32:39,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:32:39,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:32:39,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:32:39,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:39" (1/1) ... [2022-09-16 11:32:39,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:39" (1/1) ... [2022-09-16 11:32:39,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:39" (1/1) ... [2022-09-16 11:32:39,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:39" (1/1) ... [2022-09-16 11:32:39,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:39" (1/1) ... [2022-09-16 11:32:39,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:39" (1/1) ... [2022-09-16 11:32:39,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:39" (1/1) ... [2022-09-16 11:32:39,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:32:39,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:32:39,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:32:39,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:32:39,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:39" (1/1) ... [2022-09-16 11:32:39,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:32:39,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:32:39,170 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 11:32:39,191 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 11:32:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:32:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:32:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:32:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:32:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:32:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:32:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:32:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:32:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:32:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 11:32:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 11:32:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-09-16 11:32:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-09-16 11:32:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:32:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:32:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:32:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:32:39,219 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 11:32:39,389 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:32:39,391 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:32:39,851 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:32:40,105 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:32:40,105 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:32:40,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:32:40 BoogieIcfgContainer [2022-09-16 11:32:40,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:32:40,111 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:32:40,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:32:40,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:32:40,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:32:38" (1/3) ... [2022-09-16 11:32:40,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f379e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:32:40, skipping insertion in model container [2022-09-16 11:32:40,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:39" (2/3) ... [2022-09-16 11:32:40,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f379e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:32:40, skipping insertion in model container [2022-09-16 11:32:40,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:32:40" (3/3) ... [2022-09-16 11:32:40,116 INFO L112 eAbstractionObserver]: Analyzing ICFG mix027_power.opt_pso.opt_rmo.opt.i [2022-09-16 11:32:40,143 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:32:40,143 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 11:32:40,143 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:32:40,206 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:32:40,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 152 places, 141 transitions, 302 flow [2022-09-16 11:32:40,278 INFO L130 PetriNetUnfolder]: 2/137 cut-off events. [2022-09-16 11:32:40,278 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:32:40,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 137 events. 2/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 91 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2022-09-16 11:32:40,281 INFO L82 GeneralOperation]: Start removeDead. Operand has 152 places, 141 transitions, 302 flow [2022-09-16 11:32:40,284 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 148 places, 137 transitions, 286 flow [2022-09-16 11:32:40,291 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:32:40,296 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;@2d2770b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:32:40,296 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-09-16 11:32:40,303 INFO L130 PetriNetUnfolder]: 0/54 cut-off events. [2022-09-16 11:32:40,303 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:32:40,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:40,304 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 11:32:40,304 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:32:40,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:40,307 INFO L85 PathProgramCache]: Analyzing trace with hash 402235786, now seen corresponding path program 1 times [2022-09-16 11:32:40,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:40,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656781097] [2022-09-16 11:32:40,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:40,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:40,528 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 11:32:40,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:40,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656781097] [2022-09-16 11:32:40,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656781097] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:40,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:40,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:32:40,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896372564] [2022-09-16 11:32:40,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:40,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:32:40,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:40,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:32:40,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:32:40,556 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 141 [2022-09-16 11:32:40,558 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 137 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 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 11:32:40,558 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:40,558 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 141 [2022-09-16 11:32:40,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:41,316 INFO L130 PetriNetUnfolder]: 2759/4941 cut-off events. [2022-09-16 11:32:41,316 INFO L131 PetriNetUnfolder]: For 79/79 co-relation queries the response was YES. [2022-09-16 11:32:41,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9059 conditions, 4941 events. 2759/4941 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 37522 event pairs, 922 based on Foata normal form. 386/3550 useless extension candidates. Maximal degree in co-relation 9002. Up to 3852 conditions per place. [2022-09-16 11:32:41,367 INFO L137 encePairwiseOnDemand]: 126/141 looper letters, 31 selfloop transitions, 5 changer transitions 0/147 dead transitions. [2022-09-16 11:32:41,367 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 147 transitions, 387 flow [2022-09-16 11:32:41,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:32:41,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:32:41,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 393 transitions. [2022-09-16 11:32:41,379 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9290780141843972 [2022-09-16 11:32:41,380 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 393 transitions. [2022-09-16 11:32:41,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 393 transitions. [2022-09-16 11:32:41,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:41,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 393 transitions. [2022-09-16 11:32:41,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 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 11:32:41,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 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 11:32:41,391 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 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 11:32:41,392 INFO L175 Difference]: Start difference. First operand has 148 places, 137 transitions, 286 flow. Second operand 3 states and 393 transitions. [2022-09-16 11:32:41,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 147 transitions, 387 flow [2022-09-16 11:32:41,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 147 transitions, 380 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:32:41,398 INFO L231 Difference]: Finished difference. Result has 146 places, 138 transitions, 323 flow [2022-09-16 11:32:41,400 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=323, PETRI_PLACES=146, PETRI_TRANSITIONS=138} [2022-09-16 11:32:41,403 INFO L287 CegarLoopForPetriNet]: 148 programPoint places, -2 predicate places. [2022-09-16 11:32:41,403 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 138 transitions, 323 flow [2022-09-16 11:32:41,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 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 11:32:41,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:41,404 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] [2022-09-16 11:32:41,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:32:41,404 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:32:41,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:41,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1212471909, now seen corresponding path program 1 times [2022-09-16 11:32:41,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:41,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429498754] [2022-09-16 11:32:41,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:41,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:41,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:41,549 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 11:32:41,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:41,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429498754] [2022-09-16 11:32:41,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429498754] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:41,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:41,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:32:41,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682182161] [2022-09-16 11:32:41,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:41,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:32:41,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:41,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:32:41,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:32:41,553 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 141 [2022-09-16 11:32:41,554 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 138 transitions, 323 flow. Second operand has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:41,554 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:41,554 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 141 [2022-09-16 11:32:41,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:42,110 INFO L130 PetriNetUnfolder]: 1609/3391 cut-off events. [2022-09-16 11:32:42,111 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2022-09-16 11:32:42,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7421 conditions, 3391 events. 1609/3391 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 27479 event pairs, 210 based on Foata normal form. 0/2514 useless extension candidates. Maximal degree in co-relation 7365. Up to 1325 conditions per place. [2022-09-16 11:32:42,157 INFO L137 encePairwiseOnDemand]: 128/141 looper letters, 39 selfloop transitions, 13 changer transitions 0/163 dead transitions. [2022-09-16 11:32:42,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 163 transitions, 503 flow [2022-09-16 11:32:42,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:32:42,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:32:42,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 516 transitions. [2022-09-16 11:32:42,160 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9148936170212766 [2022-09-16 11:32:42,161 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 516 transitions. [2022-09-16 11:32:42,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 516 transitions. [2022-09-16 11:32:42,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:42,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 516 transitions. [2022-09-16 11:32:42,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 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 11:32:42,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 0 states have call successors, (0), 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 11:32:42,166 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 0 states have call successors, (0), 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 11:32:42,166 INFO L175 Difference]: Start difference. First operand has 146 places, 138 transitions, 323 flow. Second operand 4 states and 516 transitions. [2022-09-16 11:32:42,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 163 transitions, 503 flow [2022-09-16 11:32:42,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 163 transitions, 498 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:32:42,173 INFO L231 Difference]: Finished difference. Result has 150 places, 146 transitions, 421 flow [2022-09-16 11:32:42,173 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=421, PETRI_PLACES=150, PETRI_TRANSITIONS=146} [2022-09-16 11:32:42,174 INFO L287 CegarLoopForPetriNet]: 148 programPoint places, 2 predicate places. [2022-09-16 11:32:42,174 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 146 transitions, 421 flow [2022-09-16 11:32:42,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:42,174 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:42,175 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] [2022-09-16 11:32:42,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:32:42,175 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:32:42,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:42,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1212471908, now seen corresponding path program 1 times [2022-09-16 11:32:42,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:42,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182487300] [2022-09-16 11:32:42,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:42,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:42,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:42,264 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 11:32:42,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:42,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182487300] [2022-09-16 11:32:42,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182487300] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:42,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:42,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:32:42,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354754193] [2022-09-16 11:32:42,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:42,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:32:42,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:42,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:32:42,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:32:42,269 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 141 [2022-09-16 11:32:42,270 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 146 transitions, 421 flow. Second operand has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:42,270 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:42,270 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 141 [2022-09-16 11:32:42,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:42,584 INFO L130 PetriNetUnfolder]: 702/2294 cut-off events. [2022-09-16 11:32:42,584 INFO L131 PetriNetUnfolder]: For 1830/1830 co-relation queries the response was YES. [2022-09-16 11:32:42,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4576 conditions, 2294 events. 702/2294 cut-off events. For 1830/1830 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 17986 event pairs, 423 based on Foata normal form. 275/2288 useless extension candidates. Maximal degree in co-relation 4517. Up to 953 conditions per place. [2022-09-16 11:32:42,603 INFO L137 encePairwiseOnDemand]: 132/141 looper letters, 31 selfloop transitions, 5 changer transitions 0/147 dead transitions. [2022-09-16 11:32:42,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 147 transitions, 461 flow [2022-09-16 11:32:42,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:32:42,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:32:42,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 496 transitions. [2022-09-16 11:32:42,605 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8794326241134752 [2022-09-16 11:32:42,605 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 496 transitions. [2022-09-16 11:32:42,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 496 transitions. [2022-09-16 11:32:42,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:42,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 496 transitions. [2022-09-16 11:32:42,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 0 states have call successors, (0), 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 11:32:42,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 0 states have call successors, (0), 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 11:32:42,608 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 0 states have call successors, (0), 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 11:32:42,608 INFO L175 Difference]: Start difference. First operand has 150 places, 146 transitions, 421 flow. Second operand 4 states and 496 transitions. [2022-09-16 11:32:42,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 147 transitions, 461 flow [2022-09-16 11:32:42,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 147 transitions, 438 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-09-16 11:32:42,616 INFO L231 Difference]: Finished difference. Result has 146 places, 138 transitions, 352 flow [2022-09-16 11:32:42,616 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=352, PETRI_PLACES=146, PETRI_TRANSITIONS=138} [2022-09-16 11:32:42,618 INFO L287 CegarLoopForPetriNet]: 148 programPoint places, -2 predicate places. [2022-09-16 11:32:42,618 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 138 transitions, 352 flow [2022-09-16 11:32:42,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:42,618 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:42,618 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] [2022-09-16 11:32:42,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:32:42,619 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:32:42,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:42,619 INFO L85 PathProgramCache]: Analyzing trace with hash 811054491, now seen corresponding path program 1 times [2022-09-16 11:32:42,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:42,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730877762] [2022-09-16 11:32:42,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:42,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:42,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:42,725 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 11:32:42,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:42,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730877762] [2022-09-16 11:32:42,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730877762] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:42,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:42,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:32:42,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797171127] [2022-09-16 11:32:42,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:42,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:32:42,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:42,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:32:42,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:32:42,728 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 141 [2022-09-16 11:32:42,729 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 138 transitions, 352 flow. Second operand has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 0 states have call successors, (0), 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 11:32:42,729 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:42,729 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 141 [2022-09-16 11:32:42,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:43,065 INFO L130 PetriNetUnfolder]: 549/1800 cut-off events. [2022-09-16 11:32:43,066 INFO L131 PetriNetUnfolder]: For 707/707 co-relation queries the response was YES. [2022-09-16 11:32:43,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3330 conditions, 1800 events. 549/1800 cut-off events. For 707/707 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 13224 event pairs, 136 based on Foata normal form. 0/1689 useless extension candidates. Maximal degree in co-relation 3272. Up to 295 conditions per place. [2022-09-16 11:32:43,077 INFO L137 encePairwiseOnDemand]: 132/141 looper letters, 38 selfloop transitions, 13 changer transitions 4/166 dead transitions. [2022-09-16 11:32:43,077 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 166 transitions, 546 flow [2022-09-16 11:32:43,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:32:43,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:32:43,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 634 transitions. [2022-09-16 11:32:43,079 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8992907801418439 [2022-09-16 11:32:43,079 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 634 transitions. [2022-09-16 11:32:43,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 634 transitions. [2022-09-16 11:32:43,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:43,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 634 transitions. [2022-09-16 11:32:43,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 126.8) internal successors, (634), 5 states have internal predecessors, (634), 0 states have call successors, (0), 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 11:32:43,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 141.0) internal successors, (846), 6 states have internal predecessors, (846), 0 states have call successors, (0), 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 11:32:43,082 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 141.0) internal successors, (846), 6 states have internal predecessors, (846), 0 states have call successors, (0), 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 11:32:43,082 INFO L175 Difference]: Start difference. First operand has 146 places, 138 transitions, 352 flow. Second operand 5 states and 634 transitions. [2022-09-16 11:32:43,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 166 transitions, 546 flow [2022-09-16 11:32:43,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 166 transitions, 540 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:32:43,086 INFO L231 Difference]: Finished difference. Result has 149 places, 138 transitions, 388 flow [2022-09-16 11:32:43,087 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=388, PETRI_PLACES=149, PETRI_TRANSITIONS=138} [2022-09-16 11:32:43,090 INFO L287 CegarLoopForPetriNet]: 148 programPoint places, 1 predicate places. [2022-09-16 11:32:43,091 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 138 transitions, 388 flow [2022-09-16 11:32:43,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 0 states have call successors, (0), 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 11:32:43,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:43,096 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, 1] [2022-09-16 11:32:43,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:32:43,096 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:32:43,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:43,097 INFO L85 PathProgramCache]: Analyzing trace with hash 2011338717, now seen corresponding path program 1 times [2022-09-16 11:32:43,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:43,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601017552] [2022-09-16 11:32:43,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:43,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:43,225 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 11:32:43,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:43,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601017552] [2022-09-16 11:32:43,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601017552] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:43,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:43,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:32:43,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918521873] [2022-09-16 11:32:43,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:43,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:32:43,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:43,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:32:43,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:32:43,228 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 141 [2022-09-16 11:32:43,229 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 138 transitions, 388 flow. Second operand has 6 states, 6 states have (on average 117.16666666666667) internal successors, (703), 6 states have internal predecessors, (703), 0 states have call successors, (0), 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 11:32:43,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:43,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 141 [2022-09-16 11:32:43,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:43,521 INFO L130 PetriNetUnfolder]: 530/2030 cut-off events. [2022-09-16 11:32:43,521 INFO L131 PetriNetUnfolder]: For 1423/1423 co-relation queries the response was YES. [2022-09-16 11:32:43,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3880 conditions, 2030 events. 530/2030 cut-off events. For 1423/1423 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 15885 event pairs, 142 based on Foata normal form. 12/1939 useless extension candidates. Maximal degree in co-relation 3821. Up to 295 conditions per place. [2022-09-16 11:32:43,530 INFO L137 encePairwiseOnDemand]: 132/141 looper letters, 0 selfloop transitions, 0 changer transitions 158/158 dead transitions. [2022-09-16 11:32:43,530 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 158 transitions, 510 flow [2022-09-16 11:32:43,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:32:43,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-16 11:32:43,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 741 transitions. [2022-09-16 11:32:43,532 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.875886524822695 [2022-09-16 11:32:43,532 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 741 transitions. [2022-09-16 11:32:43,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 741 transitions. [2022-09-16 11:32:43,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:43,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 741 transitions. [2022-09-16 11:32:43,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 0 states have call successors, (0), 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 11:32:43,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 141.0) internal successors, (987), 7 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 11:32:43,536 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 141.0) internal successors, (987), 7 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 11:32:43,536 INFO L175 Difference]: Start difference. First operand has 149 places, 138 transitions, 388 flow. Second operand 6 states and 741 transitions. [2022-09-16 11:32:43,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 158 transitions, 510 flow [2022-09-16 11:32:43,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 158 transitions, 455 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-09-16 11:32:43,540 INFO L231 Difference]: Finished difference. Result has 144 places, 0 transitions, 0 flow [2022-09-16 11:32:43,540 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=144, PETRI_TRANSITIONS=0} [2022-09-16 11:32:43,541 INFO L287 CegarLoopForPetriNet]: 148 programPoint places, -4 predicate places. [2022-09-16 11:32:43,541 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 0 transitions, 0 flow [2022-09-16 11:32:43,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.16666666666667) internal successors, (703), 6 states have internal predecessors, (703), 0 states have call successors, (0), 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 11:32:43,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-09-16 11:32:43,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-09-16 11:32:43,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-09-16 11:32:43,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-09-16 11:32:43,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-09-16 11:32:43,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-09-16 11:32:43,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-09-16 11:32:43,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-09-16 11:32:43,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-09-16 11:32:43,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-09-16 11:32:43,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-09-16 11:32:43,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-09-16 11:32:43,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-09-16 11:32:43,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-09-16 11:32:43,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-09-16 11:32:43,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-09-16 11:32:43,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-09-16 11:32:43,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-09-16 11:32:43,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-09-16 11:32:43,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-09-16 11:32:43,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:32:43,547 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-09-16 11:32:43,552 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:32:43,552 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:32:43,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:32:43 BasicIcfg [2022-09-16 11:32:43,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:32:43,556 INFO L158 Benchmark]: Toolchain (without parser) took 5060.95ms. Allocated memory was 189.8MB in the beginning and 372.2MB in the end (delta: 182.5MB). Free memory was 132.1MB in the beginning and 281.3MB in the end (delta: -149.2MB). Peak memory consumption was 240.3MB. Max. memory is 8.0GB. [2022-09-16 11:32:43,557 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 189.8MB. Free memory was 150.5MB in the beginning and 150.5MB in the end (delta: 76.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:32:43,557 INFO L158 Benchmark]: CACSL2BoogieTranslator took 531.78ms. Allocated memory is still 189.8MB. Free memory was 131.9MB in the beginning and 151.0MB in the end (delta: -19.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-09-16 11:32:43,557 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.15ms. Allocated memory is still 189.8MB. Free memory was 150.7MB in the beginning and 148.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:32:43,557 INFO L158 Benchmark]: Boogie Preprocessor took 55.22ms. Allocated memory is still 189.8MB. Free memory was 148.1MB in the beginning and 146.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:32:43,558 INFO L158 Benchmark]: RCFGBuilder took 962.84ms. Allocated memory was 189.8MB in the beginning and 259.0MB in the end (delta: 69.2MB). Free memory was 146.0MB in the beginning and 182.1MB in the end (delta: -36.1MB). Peak memory consumption was 49.1MB. Max. memory is 8.0GB. [2022-09-16 11:32:43,558 INFO L158 Benchmark]: TraceAbstraction took 3445.23ms. Allocated memory was 259.0MB in the beginning and 372.2MB in the end (delta: 113.2MB). Free memory was 181.6MB in the beginning and 281.3MB in the end (delta: -99.8MB). Peak memory consumption was 219.5MB. Max. memory is 8.0GB. [2022-09-16 11:32:43,559 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 189.8MB. Free memory was 150.5MB in the beginning and 150.5MB in the end (delta: 76.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 531.78ms. Allocated memory is still 189.8MB. Free memory was 131.9MB in the beginning and 151.0MB in the end (delta: -19.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.15ms. Allocated memory is still 189.8MB. Free memory was 150.7MB in the beginning and 148.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 55.22ms. Allocated memory is still 189.8MB. Free memory was 148.1MB in the beginning and 146.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 962.84ms. Allocated memory was 189.8MB in the beginning and 259.0MB in the end (delta: 69.2MB). Free memory was 146.0MB in the beginning and 182.1MB in the end (delta: -36.1MB). Peak memory consumption was 49.1MB. Max. memory is 8.0GB. * TraceAbstraction took 3445.23ms. Allocated memory was 259.0MB in the beginning and 372.2MB in the end (delta: 113.2MB). Free memory was 181.6MB in the beginning and 281.3MB in the end (delta: -99.8MB). Peak memory consumption was 219.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 758]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 758]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 786]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 786]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 839]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 839]: 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 9 procedures, 183 locations, 20 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: 3.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 124 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 124 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 82 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 271 IncrementalHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 17 mSDtfsCounter, 271 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=421occurred in iteration=2, InterpolantAutomatonStates: 22, 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, 0.4s InterpolantComputationTime, 336 NumberOfCodeBlocks, 336 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 331 ConstructedInterpolants, 0 QuantifiedInterpolants, 913 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 11:32:43,603 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...