/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 10:14:41,000 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 10:14:41,050 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-27 10:14:41,054 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 10:14:41,054 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 10:14:41,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 10:14:41,079 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 10:14:41,079 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 10:14:41,080 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 10:14:41,080 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 10:14:41,080 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 10:14:41,081 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 10:14:41,081 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 10:14:41,081 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 10:14:41,082 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 10:14:41,082 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 10:14:41,082 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 10:14:41,083 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 10:14:41,083 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 10:14:41,083 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 10:14:41,084 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 10:14:41,087 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 10:14:41,087 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 10:14:41,087 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 10:14:41,088 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 10:14:41,088 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 10:14:41,088 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 10:14:41,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 10:14:41,092 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 10:14:41,092 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 10:14:41,093 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 10:14:41,093 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 10:14:41,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 10:14:41,093 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 10:14:41,094 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 10:14:41,094 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 10:14:41,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 10:14:41,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 10:14:41,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 10:14:41,432 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 10:14:41,432 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 10:14:41,436 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-27 10:14:42,637 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 10:14:42,915 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 10:14:42,915 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-27 10:14:42,934 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e49914caf/adbcccf20c7c4e7da2fb49d822672b91/FLAG1d7f8e78f [2023-08-27 10:14:42,947 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e49914caf/adbcccf20c7c4e7da2fb49d822672b91 [2023-08-27 10:14:42,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 10:14:42,953 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 10:14:42,957 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 10:14:42,957 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 10:14:42,960 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 10:14:42,961 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:14:42" (1/1) ... [2023-08-27 10:14:42,962 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a2c0aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:14:42, skipping insertion in model container [2023-08-27 10:14:42,962 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:14:42" (1/1) ... [2023-08-27 10:14:43,007 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 10:14:43,337 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 10:14:43,348 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 10:14:43,376 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-27 10:14:43,379 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-27 10:14:43,398 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 10:14:43,435 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 10:14:43,435 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 10:14:43,441 INFO L206 MainTranslator]: Completed translation [2023-08-27 10:14:43,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:14:43 WrapperNode [2023-08-27 10:14:43,443 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 10:14:43,444 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 10:14:43,444 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 10:14:43,444 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 10:14:43,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:14:43" (1/1) ... [2023-08-27 10:14:43,477 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:14:43" (1/1) ... [2023-08-27 10:14:43,500 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 75 [2023-08-27 10:14:43,501 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 10:14:43,501 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 10:14:43,502 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 10:14:43,502 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 10:14:43,508 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:14:43" (1/1) ... [2023-08-27 10:14:43,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:14:43" (1/1) ... [2023-08-27 10:14:43,525 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:14:43" (1/1) ... [2023-08-27 10:14:43,526 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:14:43" (1/1) ... [2023-08-27 10:14:43,531 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:14:43" (1/1) ... [2023-08-27 10:14:43,532 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:14:43" (1/1) ... [2023-08-27 10:14:43,541 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:14:43" (1/1) ... [2023-08-27 10:14:43,542 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:14:43" (1/1) ... [2023-08-27 10:14:43,545 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 10:14:43,545 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 10:14:43,546 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 10:14:43,546 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 10:14:43,546 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:14:43" (1/1) ... [2023-08-27 10:14:43,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 10:14:43,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 10:14:43,622 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-27 10:14:43,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-27 10:14:43,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 10:14:43,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 10:14:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 10:14:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 10:14:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 10:14:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-27 10:14:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-27 10:14:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-27 10:14:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-27 10:14:43,654 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-27 10:14:43,654 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-27 10:14:43,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 10:14:43,654 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 10:14:43,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 10:14:43,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 10:14:43,656 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 10:14:43,759 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 10:14:43,761 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 10:14:43,893 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 10:14:43,915 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 10:14:43,915 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 10:14:43,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:14:43 BoogieIcfgContainer [2023-08-27 10:14:43,917 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 10:14:43,919 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 10:14:43,919 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 10:14:43,921 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 10:14:43,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 10:14:42" (1/3) ... [2023-08-27 10:14:43,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48da770d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:14:43, skipping insertion in model container [2023-08-27 10:14:43,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:14:43" (2/3) ... [2023-08-27 10:14:43,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48da770d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:14:43, skipping insertion in model container [2023-08-27 10:14:43,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:14:43" (3/3) ... [2023-08-27 10:14:43,923 INFO L112 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-27 10:14:43,938 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 10:14:43,938 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-08-27 10:14:43,938 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 10:14:43,988 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 10:14:44,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 96 transitions, 207 flow [2023-08-27 10:14:44,065 INFO L124 PetriNetUnfolderBase]: 3/93 cut-off events. [2023-08-27 10:14:44,065 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 10:14:44,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 93 events. 3/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2023-08-27 10:14:44,070 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 96 transitions, 207 flow [2023-08-27 10:14:44,074 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 93 transitions, 195 flow [2023-08-27 10:14:44,077 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 10:14:44,084 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 93 transitions, 195 flow [2023-08-27 10:14:44,086 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 93 transitions, 195 flow [2023-08-27 10:14:44,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 93 transitions, 195 flow [2023-08-27 10:14:44,110 INFO L124 PetriNetUnfolderBase]: 3/93 cut-off events. [2023-08-27 10:14:44,110 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 10:14:44,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 93 events. 3/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2023-08-27 10:14:44,112 INFO L119 LiptonReduction]: Number of co-enabled transitions 2256 [2023-08-27 10:14:46,242 INFO L134 LiptonReduction]: Checked pairs total: 7294 [2023-08-27 10:14:46,243 INFO L136 LiptonReduction]: Total number of compositions: 86 [2023-08-27 10:14:46,253 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 10:14:46,258 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;@6d02066d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 10:14:46,258 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-08-27 10:14:46,261 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 10:14:46,261 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-27 10:14:46,261 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 10:14:46,261 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:14:46,262 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 10:14:46,262 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:14:46,266 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:14:46,266 INFO L85 PathProgramCache]: Analyzing trace with hash 340926564, now seen corresponding path program 1 times [2023-08-27 10:14:46,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:14:46,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556730413] [2023-08-27 10:14:46,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:14:46,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:14:46,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:14:46,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:14:46,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:14:46,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556730413] [2023-08-27 10:14:46,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556730413] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:14:46,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:14:46,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 10:14:46,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613261615] [2023-08-27 10:14:46,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:14:46,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 10:14:46,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:14:46,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 10:14:46,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 10:14:46,480 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 182 [2023-08-27 10:14:46,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:46,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:14:46,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 182 [2023-08-27 10:14:46,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:14:46,650 INFO L124 PetriNetUnfolderBase]: 532/887 cut-off events. [2023-08-27 10:14:46,650 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-08-27 10:14:46,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1804 conditions, 887 events. 532/887 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 4682 event pairs, 306 based on Foata normal form. 8/553 useless extension candidates. Maximal degree in co-relation 1793. Up to 843 conditions per place. [2023-08-27 10:14:46,663 INFO L140 encePairwiseOnDemand]: 170/182 looper letters, 28 selfloop transitions, 4 changer transitions 0/35 dead transitions. [2023-08-27 10:14:46,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 35 transitions, 149 flow [2023-08-27 10:14:46,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 10:14:46,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 10:14:46,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2023-08-27 10:14:46,674 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5036630036630036 [2023-08-27 10:14:46,674 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 275 transitions. [2023-08-27 10:14:46,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 275 transitions. [2023-08-27 10:14:46,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:14:46,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 275 transitions. [2023-08-27 10:14:46,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:46,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:46,686 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:46,688 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 3 states and 275 transitions. [2023-08-27 10:14:46,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 35 transitions, 149 flow [2023-08-27 10:14:46,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 35 transitions, 144 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 10:14:46,692 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 94 flow [2023-08-27 10:14:46,693 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2023-08-27 10:14:46,696 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2023-08-27 10:14:46,696 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 94 flow [2023-08-27 10:14:46,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:46,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:14:46,697 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:14:46,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 10:14:46,697 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:14:46,698 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:14:46,698 INFO L85 PathProgramCache]: Analyzing trace with hash -230114326, now seen corresponding path program 1 times [2023-08-27 10:14:46,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:14:46,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487809763] [2023-08-27 10:14:46,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:14:46,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:14:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:14:46,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:14:46,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:14:46,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487809763] [2023-08-27 10:14:46,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487809763] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:14:46,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:14:46,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 10:14:46,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732165817] [2023-08-27 10:14:46,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:14:46,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 10:14:46,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:14:46,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 10:14:46,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 10:14:46,807 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 182 [2023-08-27 10:14:46,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:46,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:14:46,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 182 [2023-08-27 10:14:46,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:14:46,907 INFO L124 PetriNetUnfolderBase]: 327/558 cut-off events. [2023-08-27 10:14:46,908 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2023-08-27 10:14:46,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1441 conditions, 558 events. 327/558 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2574 event pairs, 150 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 1430. Up to 513 conditions per place. [2023-08-27 10:14:46,913 INFO L140 encePairwiseOnDemand]: 175/182 looper letters, 25 selfloop transitions, 4 changer transitions 0/32 dead transitions. [2023-08-27 10:14:46,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 32 transitions, 158 flow [2023-08-27 10:14:46,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 10:14:46,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 10:14:46,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 344 transitions. [2023-08-27 10:14:46,919 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4725274725274725 [2023-08-27 10:14:46,919 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 344 transitions. [2023-08-27 10:14:46,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 344 transitions. [2023-08-27 10:14:46,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:14:46,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 344 transitions. [2023-08-27 10:14:46,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:46,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:46,925 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:46,925 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 94 flow. Second operand 4 states and 344 transitions. [2023-08-27 10:14:46,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 32 transitions, 158 flow [2023-08-27 10:14:46,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 32 transitions, 154 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 10:14:46,927 INFO L231 Difference]: Finished difference. Result has 34 places, 25 transitions, 86 flow [2023-08-27 10:14:46,927 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=86, PETRI_PLACES=34, PETRI_TRANSITIONS=25} [2023-08-27 10:14:46,929 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2023-08-27 10:14:46,929 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 25 transitions, 86 flow [2023-08-27 10:14:46,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:46,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:14:46,932 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:14:46,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 10:14:46,937 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:14:46,939 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:14:46,939 INFO L85 PathProgramCache]: Analyzing trace with hash -230278005, now seen corresponding path program 1 times [2023-08-27 10:14:46,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:14:46,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609118443] [2023-08-27 10:14:46,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:14:46,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:14:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:14:47,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:14:47,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:14:47,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609118443] [2023-08-27 10:14:47,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609118443] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:14:47,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:14:47,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 10:14:47,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622264936] [2023-08-27 10:14:47,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:14:47,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 10:14:47,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:14:47,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 10:14:47,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 10:14:47,027 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 182 [2023-08-27 10:14:47,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:47,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:14:47,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 182 [2023-08-27 10:14:47,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:14:47,103 INFO L124 PetriNetUnfolderBase]: 92/196 cut-off events. [2023-08-27 10:14:47,104 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2023-08-27 10:14:47,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 515 conditions, 196 events. 92/196 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 684 event pairs, 31 based on Foata normal form. 12/180 useless extension candidates. Maximal degree in co-relation 503. Up to 104 conditions per place. [2023-08-27 10:14:47,105 INFO L140 encePairwiseOnDemand]: 174/182 looper letters, 30 selfloop transitions, 7 changer transitions 0/40 dead transitions. [2023-08-27 10:14:47,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 40 transitions, 202 flow [2023-08-27 10:14:47,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 10:14:47,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 10:14:47,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 353 transitions. [2023-08-27 10:14:47,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4848901098901099 [2023-08-27 10:14:47,107 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 353 transitions. [2023-08-27 10:14:47,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 353 transitions. [2023-08-27 10:14:47,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:14:47,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 353 transitions. [2023-08-27 10:14:47,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:47,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:47,111 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:47,111 INFO L175 Difference]: Start difference. First operand has 34 places, 25 transitions, 86 flow. Second operand 4 states and 353 transitions. [2023-08-27 10:14:47,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 40 transitions, 202 flow [2023-08-27 10:14:47,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 40 transitions, 197 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 10:14:47,114 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 127 flow [2023-08-27 10:14:47,114 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=127, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2023-08-27 10:14:47,115 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2023-08-27 10:14:47,115 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 127 flow [2023-08-27 10:14:47,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:47,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:14:47,116 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:14:47,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 10:14:47,120 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:14:47,121 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:14:47,121 INFO L85 PathProgramCache]: Analyzing trace with hash -115771280, now seen corresponding path program 1 times [2023-08-27 10:14:47,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:14:47,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406538245] [2023-08-27 10:14:47,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:14:47,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:14:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:14:47,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:14:47,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:14:47,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406538245] [2023-08-27 10:14:47,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406538245] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:14:47,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:14:47,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 10:14:47,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114294773] [2023-08-27 10:14:47,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:14:47,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 10:14:47,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:14:47,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 10:14:47,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-27 10:14:47,252 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 182 [2023-08-27 10:14:47,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 127 flow. Second operand has 5 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:47,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:14:47,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 182 [2023-08-27 10:14:47,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:14:47,323 INFO L124 PetriNetUnfolderBase]: 56/121 cut-off events. [2023-08-27 10:14:47,323 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2023-08-27 10:14:47,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 121 events. 56/121 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 357 event pairs, 15 based on Foata normal form. 6/123 useless extension candidates. Maximal degree in co-relation 375. Up to 48 conditions per place. [2023-08-27 10:14:47,325 INFO L140 encePairwiseOnDemand]: 174/182 looper letters, 23 selfloop transitions, 10 changer transitions 1/37 dead transitions. [2023-08-27 10:14:47,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 37 transitions, 207 flow [2023-08-27 10:14:47,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 10:14:47,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 10:14:47,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 428 transitions. [2023-08-27 10:14:47,327 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4703296703296703 [2023-08-27 10:14:47,327 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 428 transitions. [2023-08-27 10:14:47,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 428 transitions. [2023-08-27 10:14:47,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:14:47,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 428 transitions. [2023-08-27 10:14:47,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 85.6) internal successors, (428), 5 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:47,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:47,330 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:47,331 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 127 flow. Second operand 5 states and 428 transitions. [2023-08-27 10:14:47,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 37 transitions, 207 flow [2023-08-27 10:14:47,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 37 transitions, 193 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-27 10:14:47,332 INFO L231 Difference]: Finished difference. Result has 36 places, 24 transitions, 121 flow [2023-08-27 10:14:47,333 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=121, PETRI_PLACES=36, PETRI_TRANSITIONS=24} [2023-08-27 10:14:47,333 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2023-08-27 10:14:47,333 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 24 transitions, 121 flow [2023-08-27 10:14:47,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:47,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:14:47,334 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:14:47,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 10:14:47,334 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:14:47,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:14:47,335 INFO L85 PathProgramCache]: Analyzing trace with hash -81661780, now seen corresponding path program 1 times [2023-08-27 10:14:47,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:14:47,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428453121] [2023-08-27 10:14:47,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:14:47,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:14:47,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:14:47,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:14:47,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:14:47,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428453121] [2023-08-27 10:14:47,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428453121] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:14:47,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:14:47,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 10:14:47,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771476136] [2023-08-27 10:14:47,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:14:47,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 10:14:47,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:14:47,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 10:14:47,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-27 10:14:47,489 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 182 [2023-08-27 10:14:47,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 24 transitions, 121 flow. Second operand has 6 states, 6 states have (on average 74.66666666666667) internal successors, (448), 6 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:47,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:14:47,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 182 [2023-08-27 10:14:47,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:14:47,569 INFO L124 PetriNetUnfolderBase]: 96/210 cut-off events. [2023-08-27 10:14:47,569 INFO L125 PetriNetUnfolderBase]: For 300/300 co-relation queries the response was YES. [2023-08-27 10:14:47,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 688 conditions, 210 events. 96/210 cut-off events. For 300/300 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 861 event pairs, 30 based on Foata normal form. 1/209 useless extension candidates. Maximal degree in co-relation 674. Up to 73 conditions per place. [2023-08-27 10:14:47,571 INFO L140 encePairwiseOnDemand]: 177/182 looper letters, 32 selfloop transitions, 3 changer transitions 11/48 dead transitions. [2023-08-27 10:14:47,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 48 transitions, 354 flow [2023-08-27 10:14:47,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 10:14:47,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 10:14:47,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 393 transitions. [2023-08-27 10:14:47,573 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4318681318681319 [2023-08-27 10:14:47,573 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 393 transitions. [2023-08-27 10:14:47,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 393 transitions. [2023-08-27 10:14:47,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:14:47,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 393 transitions. [2023-08-27 10:14:47,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 78.6) internal successors, (393), 5 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) [2023-08-27 10:14:47,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:47,577 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:47,577 INFO L175 Difference]: Start difference. First operand has 36 places, 24 transitions, 121 flow. Second operand 5 states and 393 transitions. [2023-08-27 10:14:47,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 48 transitions, 354 flow [2023-08-27 10:14:47,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 48 transitions, 298 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-08-27 10:14:47,583 INFO L231 Difference]: Finished difference. Result has 38 places, 24 transitions, 107 flow [2023-08-27 10:14:47,583 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=107, PETRI_PLACES=38, PETRI_TRANSITIONS=24} [2023-08-27 10:14:47,585 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2023-08-27 10:14:47,585 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 24 transitions, 107 flow [2023-08-27 10:14:47,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.66666666666667) internal successors, (448), 6 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:47,585 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:14:47,586 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:14:47,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 10:14:47,586 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:14:47,586 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:14:47,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1484002338, now seen corresponding path program 2 times [2023-08-27 10:14:47,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:14:47,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24615209] [2023-08-27 10:14:47,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:14:47,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:14:47,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:14:47,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:14:47,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:14:47,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24615209] [2023-08-27 10:14:47,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24615209] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:14:47,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:14:47,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 10:14:47,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976704005] [2023-08-27 10:14:47,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:14:47,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 10:14:47,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:14:47,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 10:14:47,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 10:14:47,753 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 182 [2023-08-27 10:14:47,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 24 transitions, 107 flow. Second operand has 5 states, 5 states have (on average 79.2) internal successors, (396), 5 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:47,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:14:47,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 182 [2023-08-27 10:14:47,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:14:47,807 INFO L124 PetriNetUnfolderBase]: 55/130 cut-off events. [2023-08-27 10:14:47,808 INFO L125 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2023-08-27 10:14:47,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 130 events. 55/130 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 400 event pairs, 23 based on Foata normal form. 1/130 useless extension candidates. Maximal degree in co-relation 430. Up to 57 conditions per place. [2023-08-27 10:14:47,809 INFO L140 encePairwiseOnDemand]: 177/182 looper letters, 26 selfloop transitions, 3 changer transitions 11/42 dead transitions. [2023-08-27 10:14:47,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 42 transitions, 284 flow [2023-08-27 10:14:47,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 10:14:47,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 10:14:47,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 407 transitions. [2023-08-27 10:14:47,811 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4472527472527473 [2023-08-27 10:14:47,811 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 407 transitions. [2023-08-27 10:14:47,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 407 transitions. [2023-08-27 10:14:47,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:14:47,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 407 transitions. [2023-08-27 10:14:47,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:47,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:47,815 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:47,815 INFO L175 Difference]: Start difference. First operand has 38 places, 24 transitions, 107 flow. Second operand 5 states and 407 transitions. [2023-08-27 10:14:47,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 42 transitions, 284 flow [2023-08-27 10:14:47,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 42 transitions, 272 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-27 10:14:47,817 INFO L231 Difference]: Finished difference. Result has 39 places, 24 transitions, 109 flow [2023-08-27 10:14:47,818 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=109, PETRI_PLACES=39, PETRI_TRANSITIONS=24} [2023-08-27 10:14:47,820 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2023-08-27 10:14:47,820 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 24 transitions, 109 flow [2023-08-27 10:14:47,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.2) internal successors, (396), 5 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:47,821 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:14:47,821 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:14:47,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 10:14:47,821 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:14:47,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:14:47,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1349919372, now seen corresponding path program 3 times [2023-08-27 10:14:47,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:14:47,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855030718] [2023-08-27 10:14:47,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:14:47,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:14:47,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:14:47,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:14:47,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:14:47,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855030718] [2023-08-27 10:14:47,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855030718] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:14:47,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:14:47,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 10:14:47,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157433217] [2023-08-27 10:14:47,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:14:47,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 10:14:47,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:14:47,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 10:14:47,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-27 10:14:47,982 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 182 [2023-08-27 10:14:47,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 24 transitions, 109 flow. Second operand has 6 states, 6 states have (on average 74.66666666666667) internal successors, (448), 6 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:47,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:14:47,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 182 [2023-08-27 10:14:47,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:14:48,024 INFO L124 PetriNetUnfolderBase]: 34/81 cut-off events. [2023-08-27 10:14:48,024 INFO L125 PetriNetUnfolderBase]: For 89/91 co-relation queries the response was YES. [2023-08-27 10:14:48,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 81 events. 34/81 cut-off events. For 89/91 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 191 event pairs, 22 based on Foata normal form. 1/79 useless extension candidates. Maximal degree in co-relation 277. Up to 58 conditions per place. [2023-08-27 10:14:48,025 INFO L140 encePairwiseOnDemand]: 178/182 looper letters, 0 selfloop transitions, 0 changer transitions 27/27 dead transitions. [2023-08-27 10:14:48,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 27 transitions, 181 flow [2023-08-27 10:14:48,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 10:14:48,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 10:14:48,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 378 transitions. [2023-08-27 10:14:48,026 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4153846153846154 [2023-08-27 10:14:48,027 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 378 transitions. [2023-08-27 10:14:48,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 378 transitions. [2023-08-27 10:14:48,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:14:48,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 378 transitions. [2023-08-27 10:14:48,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 75.6) internal successors, (378), 5 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:48,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:48,030 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:48,030 INFO L175 Difference]: Start difference. First operand has 39 places, 24 transitions, 109 flow. Second operand 5 states and 378 transitions. [2023-08-27 10:14:48,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 27 transitions, 181 flow [2023-08-27 10:14:48,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 27 transitions, 173 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-27 10:14:48,031 INFO L231 Difference]: Finished difference. Result has 38 places, 0 transitions, 0 flow [2023-08-27 10:14:48,032 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=38, PETRI_TRANSITIONS=0} [2023-08-27 10:14:48,032 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2023-08-27 10:14:48,032 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 0 transitions, 0 flow [2023-08-27 10:14:48,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.66666666666667) internal successors, (448), 6 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:14:48,034 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2023-08-27 10:14:48,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2023-08-27 10:14:48,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2023-08-27 10:14:48,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2023-08-27 10:14:48,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2023-08-27 10:14:48,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2023-08-27 10:14:48,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (9 of 16 remaining) [2023-08-27 10:14:48,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 16 remaining) [2023-08-27 10:14:48,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 16 remaining) [2023-08-27 10:14:48,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 16 remaining) [2023-08-27 10:14:48,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2023-08-27 10:14:48,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2023-08-27 10:14:48,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2023-08-27 10:14:48,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2023-08-27 10:14:48,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2023-08-27 10:14:48,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2023-08-27 10:14:48,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 10:14:48,038 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2023-08-27 10:14:48,042 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 10:14:48,042 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 10:14:48,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 10:14:48 BasicIcfg [2023-08-27 10:14:48,047 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 10:14:48,048 INFO L158 Benchmark]: Toolchain (without parser) took 5094.24ms. Allocated memory was 352.3MB in the beginning and 505.4MB in the end (delta: 153.1MB). Free memory was 326.9MB in the beginning and 321.4MB in the end (delta: 5.5MB). Peak memory consumption was 159.3MB. Max. memory is 16.0GB. [2023-08-27 10:14:48,048 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 352.3MB. Free memory was 330.0MB in the beginning and 329.9MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 10:14:48,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 485.86ms. Allocated memory is still 352.3MB. Free memory was 326.9MB in the beginning and 306.7MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 10:14:48,048 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.08ms. Allocated memory is still 352.3MB. Free memory was 306.7MB in the beginning and 304.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 10:14:48,048 INFO L158 Benchmark]: Boogie Preprocessor took 43.41ms. Allocated memory is still 352.3MB. Free memory was 304.6MB in the beginning and 303.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 10:14:48,049 INFO L158 Benchmark]: RCFGBuilder took 371.59ms. Allocated memory is still 352.3MB. Free memory was 303.1MB in the beginning and 287.1MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-27 10:14:48,049 INFO L158 Benchmark]: TraceAbstraction took 4128.24ms. Allocated memory was 352.3MB in the beginning and 505.4MB in the end (delta: 153.1MB). Free memory was 286.4MB in the beginning and 321.4MB in the end (delta: -35.1MB). Peak memory consumption was 119.5MB. Max. memory is 16.0GB. [2023-08-27 10:14:48,052 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 352.3MB. Free memory was 330.0MB in the beginning and 329.9MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 485.86ms. Allocated memory is still 352.3MB. Free memory was 326.9MB in the beginning and 306.7MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 57.08ms. Allocated memory is still 352.3MB. Free memory was 306.7MB in the beginning and 304.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 43.41ms. Allocated memory is still 352.3MB. Free memory was 304.6MB in the beginning and 303.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 371.59ms. Allocated memory is still 352.3MB. Free memory was 303.1MB in the beginning and 287.1MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 4128.24ms. Allocated memory was 352.3MB in the beginning and 505.4MB in the end (delta: 153.1MB). Free memory was 286.4MB in the beginning and 321.4MB in the end (delta: -35.1MB). Peak memory consumption was 119.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 100 PlacesBefore, 35 PlacesAfterwards, 93 TransitionsBefore, 26 TransitionsAfterwards, 2256 CoEnabledTransitionPairs, 7 FixpointIterations, 21 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 86 TotalNumberOfCompositions, 7294 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3073, independent: 2867, independent conditional: 0, independent unconditional: 2867, dependent: 206, dependent conditional: 0, dependent unconditional: 206, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1202, independent: 1165, independent conditional: 0, independent unconditional: 1165, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3073, independent: 1702, independent conditional: 0, independent unconditional: 1702, dependent: 169, dependent conditional: 0, dependent unconditional: 169, unknown: 1202, unknown conditional: 0, unknown unconditional: 1202] , Statistics on independence cache: Total cache size (in pairs): 102, Positive cache size: 87, Positive conditional cache size: 0, Positive unconditional cache size: 87, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 735]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 735]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 750]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 750]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 124 locations, 16 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: 4.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 103 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 336 IncrementalHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 6 mSDtfsCounter, 336 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=3, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 384 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 10:14:48,071 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...