/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/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 10:14:59,737 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 10:14:59,827 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 10:14:59,832 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 10:14:59,833 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 10:14:59,864 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 10:14:59,865 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 10:14:59,865 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 10:14:59,866 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 10:14:59,870 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 10:14:59,870 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 10:14:59,871 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 10:14:59,871 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 10:14:59,872 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 10:14:59,872 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 10:14:59,873 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 10:14:59,873 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 10:14:59,873 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 10:14:59,873 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 10:14:59,874 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 10:14:59,874 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 10:14:59,874 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 10:14:59,874 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 10:14:59,875 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 10:14:59,875 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 10:14:59,876 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 10:14:59,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 10:14:59,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 10:14:59,876 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 10:14:59,877 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 10:14:59,878 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 10:14:59,878 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 10:14:59,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 10:14:59,878 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 10:14:59,878 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 10:14:59,879 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 10:15:00,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 10:15:00,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 10:15:00,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 10:15:00,211 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 10:15:00,212 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 10:15:00,213 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-27 10:15:01,540 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 10:15:01,777 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 10:15:01,778 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-27 10:15:01,795 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dd303bf2/d8d6d4199a454e468bcc394a592e98d3/FLAG85d213643 [2023-08-27 10:15:01,808 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dd303bf2/d8d6d4199a454e468bcc394a592e98d3 [2023-08-27 10:15:01,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 10:15:01,811 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 10:15:01,813 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 10:15:01,814 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 10:15:01,816 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 10:15:01,817 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:15:01" (1/1) ... [2023-08-27 10:15:01,817 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a2f1ad7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:01, skipping insertion in model container [2023-08-27 10:15:01,818 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:15:01" (1/1) ... [2023-08-27 10:15:01,859 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 10:15:02,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 10:15:02,110 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 10:15:02,145 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-27 10:15:02,146 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-27 10:15:02,190 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 10:15:02,226 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 10:15:02,226 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 10:15:02,232 INFO L206 MainTranslator]: Completed translation [2023-08-27 10:15:02,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:02 WrapperNode [2023-08-27 10:15:02,233 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 10:15:02,234 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 10:15:02,234 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 10:15:02,234 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 10:15:02,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:02" (1/1) ... [2023-08-27 10:15:02,272 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:02" (1/1) ... [2023-08-27 10:15:02,297 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2023-08-27 10:15:02,298 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 10:15:02,299 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 10:15:02,299 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 10:15:02,299 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 10:15:02,307 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:02" (1/1) ... [2023-08-27 10:15:02,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:02" (1/1) ... [2023-08-27 10:15:02,341 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:02" (1/1) ... [2023-08-27 10:15:02,341 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:02" (1/1) ... [2023-08-27 10:15:02,345 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:02" (1/1) ... [2023-08-27 10:15:02,347 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:02" (1/1) ... [2023-08-27 10:15:02,356 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:02" (1/1) ... [2023-08-27 10:15:02,358 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:02" (1/1) ... [2023-08-27 10:15:02,360 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 10:15:02,360 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 10:15:02,360 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 10:15:02,361 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 10:15:02,361 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:02" (1/1) ... [2023-08-27 10:15:02,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 10:15:02,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 10:15:02,407 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 10:15:02,417 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 10:15:02,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 10:15:02,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 10:15:02,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 10:15:02,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 10:15:02,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 10:15:02,444 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-27 10:15:02,444 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-27 10:15:02,444 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-27 10:15:02,444 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-27 10:15:02,444 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-27 10:15:02,445 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-27 10:15:02,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 10:15:02,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 10:15:02,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 10:15:02,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 10:15:02,448 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 10:15:02,604 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 10:15:02,606 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 10:15:02,779 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 10:15:02,801 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 10:15:02,801 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 10:15:02,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:15:02 BoogieIcfgContainer [2023-08-27 10:15:02,803 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 10:15:02,805 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 10:15:02,805 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 10:15:02,807 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 10:15:02,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 10:15:01" (1/3) ... [2023-08-27 10:15:02,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9cf7a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:15:02, skipping insertion in model container [2023-08-27 10:15:02,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:02" (2/3) ... [2023-08-27 10:15:02,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9cf7a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:15:02, skipping insertion in model container [2023-08-27 10:15:02,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:15:02" (3/3) ... [2023-08-27 10:15:02,809 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-27 10:15:02,824 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 10:15:02,824 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-08-27 10:15:02,825 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 10:15:02,877 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 10:15:02,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 93 transitions, 201 flow [2023-08-27 10:15:02,949 INFO L124 PetriNetUnfolderBase]: 3/90 cut-off events. [2023-08-27 10:15:02,949 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 10:15:02,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 90 events. 3/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-08-27 10:15:02,957 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 93 transitions, 201 flow [2023-08-27 10:15:02,961 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 90 transitions, 189 flow [2023-08-27 10:15:02,964 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 10:15:02,978 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 90 transitions, 189 flow [2023-08-27 10:15:02,981 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 90 transitions, 189 flow [2023-08-27 10:15:02,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 90 transitions, 189 flow [2023-08-27 10:15:03,014 INFO L124 PetriNetUnfolderBase]: 3/90 cut-off events. [2023-08-27 10:15:03,014 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 10:15:03,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 90 events. 3/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-08-27 10:15:03,018 INFO L119 LiptonReduction]: Number of co-enabled transitions 2160 [2023-08-27 10:15:05,248 INFO L134 LiptonReduction]: Checked pairs total: 5556 [2023-08-27 10:15:05,248 INFO L136 LiptonReduction]: Total number of compositions: 85 [2023-08-27 10:15:05,259 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 10:15:05,265 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;@4480638f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 10:15:05,265 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-08-27 10:15:05,268 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 10:15:05,268 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-27 10:15:05,268 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 10:15:05,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:15:05,269 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 10:15:05,269 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 10:15:05,274 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:15:05,274 INFO L85 PathProgramCache]: Analyzing trace with hash 333332550, now seen corresponding path program 1 times [2023-08-27 10:15:05,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:15:05,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853332619] [2023-08-27 10:15:05,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:15:05,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:15:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:15:05,526 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 10:15:05,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:15:05,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853332619] [2023-08-27 10:15:05,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853332619] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:15:05,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:15:05,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 10:15:05,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289209200] [2023-08-27 10:15:05,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:15:05,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 10:15:05,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:15:05,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 10:15:05,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 10:15:05,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 178 [2023-08-27 10:15:05,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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 10:15:05,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:15:05,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 178 [2023-08-27 10:15:05,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:15:05,765 INFO L124 PetriNetUnfolderBase]: 496/811 cut-off events. [2023-08-27 10:15:05,765 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-08-27 10:15:05,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1655 conditions, 811 events. 496/811 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 3910 event pairs, 127 based on Foata normal form. 0/515 useless extension candidates. Maximal degree in co-relation 1644. Up to 710 conditions per place. [2023-08-27 10:15:05,774 INFO L140 encePairwiseOnDemand]: 168/178 looper letters, 30 selfloop transitions, 4 changer transitions 0/36 dead transitions. [2023-08-27 10:15:05,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 155 flow [2023-08-27 10:15:05,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 10:15:05,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 10:15:05,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2023-08-27 10:15:05,787 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49625468164794007 [2023-08-27 10:15:05,787 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 265 transitions. [2023-08-27 10:15:05,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 265 transitions. [2023-08-27 10:15:05,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:15:05,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 265 transitions. [2023-08-27 10:15:05,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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 10:15:05,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 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 10:15:05,798 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 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 10:15:05,800 INFO L175 Difference]: Start difference. First operand has 33 places, 23 transitions, 55 flow. Second operand 3 states and 265 transitions. [2023-08-27 10:15:05,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 155 flow [2023-08-27 10:15:05,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 36 transitions, 150 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 10:15:05,805 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 88 flow [2023-08-27 10:15:05,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2023-08-27 10:15:05,809 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2023-08-27 10:15:05,810 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 88 flow [2023-08-27 10:15:05,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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 10:15:05,810 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:15:05,810 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:15:05,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 10:15:05,811 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:15:05,811 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:15:05,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1345838524, now seen corresponding path program 1 times [2023-08-27 10:15:05,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:15:05,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312290596] [2023-08-27 10:15:05,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:15:05,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:15:05,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:15:06,128 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 10:15:06,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:15:06,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312290596] [2023-08-27 10:15:06,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312290596] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:15:06,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:15:06,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 10:15:06,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122667336] [2023-08-27 10:15:06,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:15:06,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 10:15:06,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:15:06,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 10:15:06,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 10:15:06,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 178 [2023-08-27 10:15:06,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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 10:15:06,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:15:06,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 178 [2023-08-27 10:15:06,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:15:06,319 INFO L124 PetriNetUnfolderBase]: 753/1342 cut-off events. [2023-08-27 10:15:06,319 INFO L125 PetriNetUnfolderBase]: For 194/216 co-relation queries the response was YES. [2023-08-27 10:15:06,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3408 conditions, 1342 events. 753/1342 cut-off events. For 194/216 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 8234 event pairs, 304 based on Foata normal form. 4/1044 useless extension candidates. Maximal degree in co-relation 3397. Up to 733 conditions per place. [2023-08-27 10:15:06,332 INFO L140 encePairwiseOnDemand]: 171/178 looper letters, 35 selfloop transitions, 6 changer transitions 0/45 dead transitions. [2023-08-27 10:15:06,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 45 transitions, 233 flow [2023-08-27 10:15:06,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 10:15:06,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 10:15:06,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2023-08-27 10:15:06,336 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47191011235955055 [2023-08-27 10:15:06,336 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 252 transitions. [2023-08-27 10:15:06,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 252 transitions. [2023-08-27 10:15:06,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:15:06,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 252 transitions. [2023-08-27 10:15:06,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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 10:15:06,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 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 10:15:06,340 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 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 10:15:06,340 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 88 flow. Second operand 3 states and 252 transitions. [2023-08-27 10:15:06,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 45 transitions, 233 flow [2023-08-27 10:15:06,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 45 transitions, 226 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 10:15:06,342 INFO L231 Difference]: Finished difference. Result has 36 places, 31 transitions, 130 flow [2023-08-27 10:15:06,342 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=36, PETRI_TRANSITIONS=31} [2023-08-27 10:15:06,343 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 3 predicate places. [2023-08-27 10:15:06,343 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 31 transitions, 130 flow [2023-08-27 10:15:06,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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 10:15:06,344 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:15:06,344 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:15:06,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 10:15:06,344 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:15:06,345 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:15:06,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1228679793, now seen corresponding path program 1 times [2023-08-27 10:15:06,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:15:06,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182847926] [2023-08-27 10:15:06,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:15:06,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:15:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:15:06,472 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 10:15:06,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:15:06,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182847926] [2023-08-27 10:15:06,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182847926] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:15:06,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:15:06,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 10:15:06,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464434302] [2023-08-27 10:15:06,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:15:06,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 10:15:06,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:15:06,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 10:15:06,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 10:15:06,475 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 178 [2023-08-27 10:15:06,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 31 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 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 10:15:06,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:15:06,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 178 [2023-08-27 10:15:06,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:15:06,633 INFO L124 PetriNetUnfolderBase]: 734/1318 cut-off events. [2023-08-27 10:15:06,633 INFO L125 PetriNetUnfolderBase]: For 624/644 co-relation queries the response was YES. [2023-08-27 10:15:06,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3856 conditions, 1318 events. 734/1318 cut-off events. For 624/644 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 8150 event pairs, 151 based on Foata normal form. 17/1098 useless extension candidates. Maximal degree in co-relation 3842. Up to 747 conditions per place. [2023-08-27 10:15:06,661 INFO L140 encePairwiseOnDemand]: 171/178 looper letters, 43 selfloop transitions, 10 changer transitions 0/57 dead transitions. [2023-08-27 10:15:06,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 57 transitions, 342 flow [2023-08-27 10:15:06,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 10:15:06,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 10:15:06,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2023-08-27 10:15:06,664 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4648876404494382 [2023-08-27 10:15:06,664 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 331 transitions. [2023-08-27 10:15:06,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 331 transitions. [2023-08-27 10:15:06,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:15:06,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 331 transitions. [2023-08-27 10:15:06,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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 10:15:06,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 178.0) internal successors, (890), 5 states have internal predecessors, (890), 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 10:15:06,669 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 178.0) internal successors, (890), 5 states have internal predecessors, (890), 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 10:15:06,669 INFO L175 Difference]: Start difference. First operand has 36 places, 31 transitions, 130 flow. Second operand 4 states and 331 transitions. [2023-08-27 10:15:06,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 57 transitions, 342 flow [2023-08-27 10:15:06,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 57 transitions, 320 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 10:15:06,675 INFO L231 Difference]: Finished difference. Result has 40 places, 38 transitions, 198 flow [2023-08-27 10:15:06,675 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=198, PETRI_PLACES=40, PETRI_TRANSITIONS=38} [2023-08-27 10:15:06,677 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 7 predicate places. [2023-08-27 10:15:06,677 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 38 transitions, 198 flow [2023-08-27 10:15:06,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 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 10:15:06,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:15:06,678 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:15:06,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 10:15:06,681 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:15:06,682 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:15:06,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1228680723, now seen corresponding path program 1 times [2023-08-27 10:15:06,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:15:06,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011883652] [2023-08-27 10:15:06,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:15:06,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:15:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:15:06,827 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 10:15:06,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:15:06,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011883652] [2023-08-27 10:15:06,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011883652] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:15:06,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:15:06,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 10:15:06,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212358249] [2023-08-27 10:15:06,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:15:06,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 10:15:06,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:15:06,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 10:15:06,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 10:15:06,830 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 178 [2023-08-27 10:15:06,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 38 transitions, 198 flow. Second operand has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 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 10:15:06,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:15:06,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 178 [2023-08-27 10:15:06,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:15:06,983 INFO L124 PetriNetUnfolderBase]: 715/1286 cut-off events. [2023-08-27 10:15:06,983 INFO L125 PetriNetUnfolderBase]: For 1028/1052 co-relation queries the response was YES. [2023-08-27 10:15:06,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4056 conditions, 1286 events. 715/1286 cut-off events. For 1028/1052 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 8038 event pairs, 141 based on Foata normal form. 16/1059 useless extension candidates. Maximal degree in co-relation 4039. Up to 734 conditions per place. [2023-08-27 10:15:06,993 INFO L140 encePairwiseOnDemand]: 171/178 looper letters, 51 selfloop transitions, 12 changer transitions 0/67 dead transitions. [2023-08-27 10:15:06,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 67 transitions, 452 flow [2023-08-27 10:15:06,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 10:15:06,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 10:15:06,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2023-08-27 10:15:06,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4648876404494382 [2023-08-27 10:15:06,995 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 331 transitions. [2023-08-27 10:15:06,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 331 transitions. [2023-08-27 10:15:06,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:15:06,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 331 transitions. [2023-08-27 10:15:06,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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 10:15:06,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 178.0) internal successors, (890), 5 states have internal predecessors, (890), 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 10:15:06,999 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 178.0) internal successors, (890), 5 states have internal predecessors, (890), 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 10:15:06,999 INFO L175 Difference]: Start difference. First operand has 40 places, 38 transitions, 198 flow. Second operand 4 states and 331 transitions. [2023-08-27 10:15:06,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 67 transitions, 452 flow [2023-08-27 10:15:07,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 67 transitions, 452 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 10:15:07,003 INFO L231 Difference]: Finished difference. Result has 46 places, 43 transitions, 294 flow [2023-08-27 10:15:07,004 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=294, PETRI_PLACES=46, PETRI_TRANSITIONS=43} [2023-08-27 10:15:07,004 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 13 predicate places. [2023-08-27 10:15:07,004 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 43 transitions, 294 flow [2023-08-27 10:15:07,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 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 10:15:07,005 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:15:07,005 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:15:07,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 10:15:07,005 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:15:07,006 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:15:07,006 INFO L85 PathProgramCache]: Analyzing trace with hash -697056883, now seen corresponding path program 1 times [2023-08-27 10:15:07,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:15:07,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950378468] [2023-08-27 10:15:07,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:15:07,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:15:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:15:07,039 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 10:15:07,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:15:07,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950378468] [2023-08-27 10:15:07,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950378468] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:15:07,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:15:07,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 10:15:07,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257745861] [2023-08-27 10:15:07,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:15:07,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 10:15:07,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:15:07,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 10:15:07,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 10:15:07,042 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 178 [2023-08-27 10:15:07,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 43 transitions, 294 flow. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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 10:15:07,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:15:07,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 178 [2023-08-27 10:15:07,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:15:07,194 INFO L124 PetriNetUnfolderBase]: 547/922 cut-off events. [2023-08-27 10:15:07,194 INFO L125 PetriNetUnfolderBase]: For 2476/2535 co-relation queries the response was YES. [2023-08-27 10:15:07,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3484 conditions, 922 events. 547/922 cut-off events. For 2476/2535 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 4819 event pairs, 82 based on Foata normal form. 59/802 useless extension candidates. Maximal degree in co-relation 3462. Up to 775 conditions per place. [2023-08-27 10:15:07,202 INFO L140 encePairwiseOnDemand]: 171/178 looper letters, 53 selfloop transitions, 4 changer transitions 0/62 dead transitions. [2023-08-27 10:15:07,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 62 transitions, 566 flow [2023-08-27 10:15:07,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 10:15:07,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 10:15:07,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 334 transitions. [2023-08-27 10:15:07,205 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4691011235955056 [2023-08-27 10:15:07,205 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 334 transitions. [2023-08-27 10:15:07,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 334 transitions. [2023-08-27 10:15:07,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:15:07,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 334 transitions. [2023-08-27 10:15:07,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 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 10:15:07,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 178.0) internal successors, (890), 5 states have internal predecessors, (890), 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 10:15:07,208 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 178.0) internal successors, (890), 5 states have internal predecessors, (890), 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 10:15:07,208 INFO L175 Difference]: Start difference. First operand has 46 places, 43 transitions, 294 flow. Second operand 4 states and 334 transitions. [2023-08-27 10:15:07,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 62 transitions, 566 flow [2023-08-27 10:15:07,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 62 transitions, 559 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 10:15:07,214 INFO L231 Difference]: Finished difference. Result has 45 places, 40 transitions, 286 flow [2023-08-27 10:15:07,214 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=286, PETRI_PLACES=45, PETRI_TRANSITIONS=40} [2023-08-27 10:15:07,216 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 12 predicate places. [2023-08-27 10:15:07,216 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 40 transitions, 286 flow [2023-08-27 10:15:07,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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 10:15:07,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:15:07,217 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:15:07,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 10:15:07,217 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:15:07,218 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:15:07,218 INFO L85 PathProgramCache]: Analyzing trace with hash -82799026, now seen corresponding path program 1 times [2023-08-27 10:15:07,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:15:07,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515966469] [2023-08-27 10:15:07,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:15:07,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:15:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:15:07,272 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 10:15:07,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:15:07,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515966469] [2023-08-27 10:15:07,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515966469] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:15:07,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:15:07,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 10:15:07,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161504877] [2023-08-27 10:15:07,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:15:07,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 10:15:07,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:15:07,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 10:15:07,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 10:15:07,279 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 178 [2023-08-27 10:15:07,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 286 flow. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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 10:15:07,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:15:07,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 178 [2023-08-27 10:15:07,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:15:07,389 INFO L124 PetriNetUnfolderBase]: 349/602 cut-off events. [2023-08-27 10:15:07,389 INFO L125 PetriNetUnfolderBase]: For 1853/1906 co-relation queries the response was YES. [2023-08-27 10:15:07,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2465 conditions, 602 events. 349/602 cut-off events. For 1853/1906 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2825 event pairs, 23 based on Foata normal form. 53/627 useless extension candidates. Maximal degree in co-relation 2442. Up to 244 conditions per place. [2023-08-27 10:15:07,394 INFO L140 encePairwiseOnDemand]: 171/178 looper letters, 66 selfloop transitions, 7 changer transitions 0/78 dead transitions. [2023-08-27 10:15:07,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 78 transitions, 705 flow [2023-08-27 10:15:07,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 10:15:07,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 10:15:07,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 345 transitions. [2023-08-27 10:15:07,396 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4845505617977528 [2023-08-27 10:15:07,396 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 345 transitions. [2023-08-27 10:15:07,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 345 transitions. [2023-08-27 10:15:07,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:15:07,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 345 transitions. [2023-08-27 10:15:07,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 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 10:15:07,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 178.0) internal successors, (890), 5 states have internal predecessors, (890), 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 10:15:07,399 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 178.0) internal successors, (890), 5 states have internal predecessors, (890), 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 10:15:07,399 INFO L175 Difference]: Start difference. First operand has 45 places, 40 transitions, 286 flow. Second operand 4 states and 345 transitions. [2023-08-27 10:15:07,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 78 transitions, 705 flow [2023-08-27 10:15:07,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 78 transitions, 700 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 10:15:07,403 INFO L231 Difference]: Finished difference. Result has 47 places, 43 transitions, 325 flow [2023-08-27 10:15:07,404 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=325, PETRI_PLACES=47, PETRI_TRANSITIONS=43} [2023-08-27 10:15:07,404 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 14 predicate places. [2023-08-27 10:15:07,404 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 43 transitions, 325 flow [2023-08-27 10:15:07,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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 10:15:07,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:15:07,405 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:15:07,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 10:15:07,405 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 10:15:07,405 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:15:07,406 INFO L85 PathProgramCache]: Analyzing trace with hash -205458067, now seen corresponding path program 1 times [2023-08-27 10:15:07,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:15:07,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668175040] [2023-08-27 10:15:07,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:15:07,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:15:07,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:15:07,493 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 10:15:07,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:15:07,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668175040] [2023-08-27 10:15:07,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668175040] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:15:07,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:15:07,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 10:15:07,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499006595] [2023-08-27 10:15:07,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:15:07,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 10:15:07,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:15:07,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 10:15:07,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 10:15:07,495 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 178 [2023-08-27 10:15:07,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 43 transitions, 325 flow. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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 10:15:07,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:15:07,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 178 [2023-08-27 10:15:07,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:15:07,653 INFO L124 PetriNetUnfolderBase]: 569/988 cut-off events. [2023-08-27 10:15:07,654 INFO L125 PetriNetUnfolderBase]: For 3324/3400 co-relation queries the response was YES. [2023-08-27 10:15:07,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4436 conditions, 988 events. 569/988 cut-off events. For 3324/3400 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 5101 event pairs, 94 based on Foata normal form. 94/1033 useless extension candidates. Maximal degree in co-relation 4412. Up to 396 conditions per place. [2023-08-27 10:15:07,663 INFO L140 encePairwiseOnDemand]: 174/178 looper letters, 74 selfloop transitions, 5 changer transitions 3/86 dead transitions. [2023-08-27 10:15:07,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 86 transitions, 799 flow [2023-08-27 10:15:07,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 10:15:07,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 10:15:07,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 342 transitions. [2023-08-27 10:15:07,665 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4803370786516854 [2023-08-27 10:15:07,665 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 342 transitions. [2023-08-27 10:15:07,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 342 transitions. [2023-08-27 10:15:07,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:15:07,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 342 transitions. [2023-08-27 10:15:07,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.5) internal successors, (342), 4 states have internal predecessors, (342), 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 10:15:07,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 178.0) internal successors, (890), 5 states have internal predecessors, (890), 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 10:15:07,669 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 178.0) internal successors, (890), 5 states have internal predecessors, (890), 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 10:15:07,670 INFO L175 Difference]: Start difference. First operand has 47 places, 43 transitions, 325 flow. Second operand 4 states and 342 transitions. [2023-08-27 10:15:07,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 86 transitions, 799 flow [2023-08-27 10:15:07,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 86 transitions, 765 flow, removed 8 selfloop flow, removed 2 redundant places. [2023-08-27 10:15:07,677 INFO L231 Difference]: Finished difference. Result has 50 places, 46 transitions, 364 flow [2023-08-27 10:15:07,677 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=364, PETRI_PLACES=50, PETRI_TRANSITIONS=46} [2023-08-27 10:15:07,678 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 17 predicate places. [2023-08-27 10:15:07,678 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 46 transitions, 364 flow [2023-08-27 10:15:07,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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 10:15:07,678 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:15:07,678 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:15:07,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 10:15:07,679 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:15:07,679 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:15:07,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1816292455, now seen corresponding path program 1 times [2023-08-27 10:15:07,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:15:07,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270973155] [2023-08-27 10:15:07,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:15:07,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:15:07,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:15:07,806 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 10:15:07,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:15:07,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270973155] [2023-08-27 10:15:07,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270973155] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:15:07,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:15:07,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 10:15:07,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130517673] [2023-08-27 10:15:07,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:15:07,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 10:15:07,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:15:07,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 10:15:07,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-27 10:15:07,808 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 178 [2023-08-27 10:15:07,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 46 transitions, 364 flow. Second operand has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 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 10:15:07,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:15:07,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 178 [2023-08-27 10:15:07,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:15:07,981 INFO L124 PetriNetUnfolderBase]: 692/1229 cut-off events. [2023-08-27 10:15:07,981 INFO L125 PetriNetUnfolderBase]: For 3416/3426 co-relation queries the response was YES. [2023-08-27 10:15:07,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5412 conditions, 1229 events. 692/1229 cut-off events. For 3416/3426 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 6861 event pairs, 94 based on Foata normal form. 25/1187 useless extension candidates. Maximal degree in co-relation 5386. Up to 644 conditions per place. [2023-08-27 10:15:07,991 INFO L140 encePairwiseOnDemand]: 171/178 looper letters, 70 selfloop transitions, 15 changer transitions 6/92 dead transitions. [2023-08-27 10:15:07,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 92 transitions, 838 flow [2023-08-27 10:15:07,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 10:15:07,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 10:15:07,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 413 transitions. [2023-08-27 10:15:07,993 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4640449438202247 [2023-08-27 10:15:07,993 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 413 transitions. [2023-08-27 10:15:07,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 413 transitions. [2023-08-27 10:15:07,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:15:07,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 413 transitions. [2023-08-27 10:15:07,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 82.6) internal successors, (413), 5 states have internal predecessors, (413), 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 10:15:07,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 178.0) internal successors, (1068), 6 states have internal predecessors, (1068), 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 10:15:07,996 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 178.0) internal successors, (1068), 6 states have internal predecessors, (1068), 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 10:15:07,997 INFO L175 Difference]: Start difference. First operand has 50 places, 46 transitions, 364 flow. Second operand 5 states and 413 transitions. [2023-08-27 10:15:07,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 92 transitions, 838 flow [2023-08-27 10:15:08,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 92 transitions, 829 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 10:15:08,004 INFO L231 Difference]: Finished difference. Result has 55 places, 53 transitions, 504 flow [2023-08-27 10:15:08,004 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=504, PETRI_PLACES=55, PETRI_TRANSITIONS=53} [2023-08-27 10:15:08,005 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 22 predicate places. [2023-08-27 10:15:08,005 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 53 transitions, 504 flow [2023-08-27 10:15:08,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 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 10:15:08,005 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:15:08,005 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:15:08,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-27 10:15:08,006 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:15:08,006 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:15:08,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1917249533, now seen corresponding path program 2 times [2023-08-27 10:15:08,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:15:08,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612461304] [2023-08-27 10:15:08,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:15:08,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:15:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:15:08,091 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 10:15:08,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:15:08,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612461304] [2023-08-27 10:15:08,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612461304] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:15:08,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:15:08,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 10:15:08,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494922685] [2023-08-27 10:15:08,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:15:08,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 10:15:08,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:15:08,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 10:15:08,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 10:15:08,093 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 178 [2023-08-27 10:15:08,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 53 transitions, 504 flow. Second operand has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 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 10:15:08,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:15:08,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 178 [2023-08-27 10:15:08,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:15:08,247 INFO L124 PetriNetUnfolderBase]: 521/1038 cut-off events. [2023-08-27 10:15:08,247 INFO L125 PetriNetUnfolderBase]: For 6144/6418 co-relation queries the response was YES. [2023-08-27 10:15:08,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4549 conditions, 1038 events. 521/1038 cut-off events. For 6144/6418 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 6671 event pairs, 113 based on Foata normal form. 363/1309 useless extension candidates. Maximal degree in co-relation 4520. Up to 724 conditions per place. [2023-08-27 10:15:08,256 INFO L140 encePairwiseOnDemand]: 171/178 looper letters, 78 selfloop transitions, 8 changer transitions 3/95 dead transitions. [2023-08-27 10:15:08,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 95 transitions, 1025 flow [2023-08-27 10:15:08,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 10:15:08,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 10:15:08,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 413 transitions. [2023-08-27 10:15:08,258 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4640449438202247 [2023-08-27 10:15:08,258 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 413 transitions. [2023-08-27 10:15:08,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 413 transitions. [2023-08-27 10:15:08,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:15:08,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 413 transitions. [2023-08-27 10:15:08,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 82.6) internal successors, (413), 5 states have internal predecessors, (413), 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 10:15:08,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 178.0) internal successors, (1068), 6 states have internal predecessors, (1068), 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 10:15:08,261 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 178.0) internal successors, (1068), 6 states have internal predecessors, (1068), 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 10:15:08,261 INFO L175 Difference]: Start difference. First operand has 55 places, 53 transitions, 504 flow. Second operand 5 states and 413 transitions. [2023-08-27 10:15:08,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 95 transitions, 1025 flow [2023-08-27 10:15:08,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 95 transitions, 1014 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 10:15:08,268 INFO L231 Difference]: Finished difference. Result has 61 places, 56 transitions, 573 flow [2023-08-27 10:15:08,268 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=573, PETRI_PLACES=61, PETRI_TRANSITIONS=56} [2023-08-27 10:15:08,269 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 28 predicate places. [2023-08-27 10:15:08,269 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 56 transitions, 573 flow [2023-08-27 10:15:08,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 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 10:15:08,269 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:15:08,269 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:15:08,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 10:15:08,270 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:15:08,270 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:15:08,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1706980047, now seen corresponding path program 1 times [2023-08-27 10:15:08,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:15:08,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275165187] [2023-08-27 10:15:08,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:15:08,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:15:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:15:08,366 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 10:15:08,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:15:08,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275165187] [2023-08-27 10:15:08,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275165187] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:15:08,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:15:08,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 10:15:08,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978772161] [2023-08-27 10:15:08,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:15:08,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 10:15:08,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:15:08,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 10:15:08,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-27 10:15:08,369 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 178 [2023-08-27 10:15:08,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 56 transitions, 573 flow. Second operand has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 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 10:15:08,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:15:08,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 178 [2023-08-27 10:15:08,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:15:08,552 INFO L124 PetriNetUnfolderBase]: 403/890 cut-off events. [2023-08-27 10:15:08,553 INFO L125 PetriNetUnfolderBase]: For 7248/7480 co-relation queries the response was YES. [2023-08-27 10:15:08,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4239 conditions, 890 events. 403/890 cut-off events. For 7248/7480 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 6076 event pairs, 58 based on Foata normal form. 302/1086 useless extension candidates. Maximal degree in co-relation 4206. Up to 383 conditions per place. [2023-08-27 10:15:08,560 INFO L140 encePairwiseOnDemand]: 171/178 looper letters, 74 selfloop transitions, 15 changer transitions 5/99 dead transitions. [2023-08-27 10:15:08,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 99 transitions, 1083 flow [2023-08-27 10:15:08,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 10:15:08,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 10:15:08,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 574 transitions. [2023-08-27 10:15:08,563 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4606741573033708 [2023-08-27 10:15:08,563 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 574 transitions. [2023-08-27 10:15:08,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 574 transitions. [2023-08-27 10:15:08,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:15:08,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 574 transitions. [2023-08-27 10:15:08,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 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 10:15:08,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 178.0) internal successors, (1424), 8 states have internal predecessors, (1424), 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 10:15:08,567 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 178.0) internal successors, (1424), 8 states have internal predecessors, (1424), 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 10:15:08,567 INFO L175 Difference]: Start difference. First operand has 61 places, 56 transitions, 573 flow. Second operand 7 states and 574 transitions. [2023-08-27 10:15:08,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 99 transitions, 1083 flow [2023-08-27 10:15:08,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 99 transitions, 1044 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 10:15:08,576 INFO L231 Difference]: Finished difference. Result has 67 places, 50 transitions, 518 flow [2023-08-27 10:15:08,576 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=441, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=518, PETRI_PLACES=67, PETRI_TRANSITIONS=50} [2023-08-27 10:15:08,577 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 34 predicate places. [2023-08-27 10:15:08,577 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 50 transitions, 518 flow [2023-08-27 10:15:08,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 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 10:15:08,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:15:08,577 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:15:08,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 10:15:08,578 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:15:08,578 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:15:08,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1750419955, now seen corresponding path program 1 times [2023-08-27 10:15:08,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:15:08,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7314566] [2023-08-27 10:15:08,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:15:08,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:15:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:15:08,622 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 10:15:08,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:15:08,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7314566] [2023-08-27 10:15:08,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7314566] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:15:08,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:15:08,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 10:15:08,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063267545] [2023-08-27 10:15:08,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:15:08,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 10:15:08,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:15:08,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 10:15:08,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-27 10:15:08,624 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 178 [2023-08-27 10:15:08,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 50 transitions, 518 flow. Second operand has 5 states, 5 states have (on average 77.4) internal successors, (387), 5 states have internal predecessors, (387), 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 10:15:08,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:15:08,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 178 [2023-08-27 10:15:08,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:15:08,765 INFO L124 PetriNetUnfolderBase]: 296/686 cut-off events. [2023-08-27 10:15:08,766 INFO L125 PetriNetUnfolderBase]: For 4714/4835 co-relation queries the response was YES. [2023-08-27 10:15:08,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3966 conditions, 686 events. 296/686 cut-off events. For 4714/4835 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 4593 event pairs, 33 based on Foata normal form. 153/833 useless extension candidates. Maximal degree in co-relation 3931. Up to 281 conditions per place. [2023-08-27 10:15:08,775 INFO L140 encePairwiseOnDemand]: 171/178 looper letters, 13 selfloop transitions, 6 changer transitions 48/69 dead transitions. [2023-08-27 10:15:08,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 69 transitions, 828 flow [2023-08-27 10:15:08,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 10:15:08,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 10:15:08,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 413 transitions. [2023-08-27 10:15:08,777 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4640449438202247 [2023-08-27 10:15:08,777 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 413 transitions. [2023-08-27 10:15:08,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 413 transitions. [2023-08-27 10:15:08,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:15:08,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 413 transitions. [2023-08-27 10:15:08,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 82.6) internal successors, (413), 5 states have internal predecessors, (413), 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 10:15:08,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 178.0) internal successors, (1068), 6 states have internal predecessors, (1068), 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 10:15:08,782 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 178.0) internal successors, (1068), 6 states have internal predecessors, (1068), 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 10:15:08,783 INFO L175 Difference]: Start difference. First operand has 67 places, 50 transitions, 518 flow. Second operand 5 states and 413 transitions. [2023-08-27 10:15:08,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 69 transitions, 828 flow [2023-08-27 10:15:08,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 69 transitions, 801 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-27 10:15:08,795 INFO L231 Difference]: Finished difference. Result has 64 places, 18 transitions, 154 flow [2023-08-27 10:15:08,796 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=154, PETRI_PLACES=64, PETRI_TRANSITIONS=18} [2023-08-27 10:15:08,796 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 31 predicate places. [2023-08-27 10:15:08,796 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 18 transitions, 154 flow [2023-08-27 10:15:08,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.4) internal successors, (387), 5 states have internal predecessors, (387), 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 10:15:08,797 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:15:08,797 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:15:08,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-27 10:15:08,797 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:15:08,798 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:15:08,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1376756243, now seen corresponding path program 1 times [2023-08-27 10:15:08,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:15:08,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954474860] [2023-08-27 10:15:08,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:15:08,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:15:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:15:08,950 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 10:15:08,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:15:08,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954474860] [2023-08-27 10:15:08,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954474860] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:15:08,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:15:08,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 10:15:08,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772183752] [2023-08-27 10:15:08,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:15:08,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 10:15:08,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:15:08,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 10:15:08,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-27 10:15:08,953 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 178 [2023-08-27 10:15:08,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 18 transitions, 154 flow. Second operand has 6 states, 6 states have (on average 75.16666666666667) internal successors, (451), 6 states have internal predecessors, (451), 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 10:15:08,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:15:08,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 178 [2023-08-27 10:15:08,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:15:08,990 INFO L124 PetriNetUnfolderBase]: 7/32 cut-off events. [2023-08-27 10:15:08,990 INFO L125 PetriNetUnfolderBase]: For 190/193 co-relation queries the response was YES. [2023-08-27 10:15:08,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 32 events. 7/32 cut-off events. For 190/193 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 50 event pairs, 0 based on Foata normal form. 4/36 useless extension candidates. Maximal degree in co-relation 172. Up to 9 conditions per place. [2023-08-27 10:15:08,991 INFO L140 encePairwiseOnDemand]: 172/178 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2023-08-27 10:15:08,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 23 transitions, 223 flow [2023-08-27 10:15:08,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 10:15:08,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 10:15:08,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 533 transitions. [2023-08-27 10:15:08,993 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42776886035313 [2023-08-27 10:15:08,993 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 533 transitions. [2023-08-27 10:15:08,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 533 transitions. [2023-08-27 10:15:08,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:15:08,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 533 transitions. [2023-08-27 10:15:08,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 76.14285714285714) internal successors, (533), 7 states have internal predecessors, (533), 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 10:15:08,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 178.0) internal successors, (1424), 8 states have internal predecessors, (1424), 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 10:15:08,998 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 178.0) internal successors, (1424), 8 states have internal predecessors, (1424), 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 10:15:08,998 INFO L175 Difference]: Start difference. First operand has 64 places, 18 transitions, 154 flow. Second operand 7 states and 533 transitions. [2023-08-27 10:15:08,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 23 transitions, 223 flow [2023-08-27 10:15:08,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 23 transitions, 125 flow, removed 11 selfloop flow, removed 23 redundant places. [2023-08-27 10:15:08,999 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2023-08-27 10:15:08,999 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2023-08-27 10:15:09,000 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 8 predicate places. [2023-08-27 10:15:09,000 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2023-08-27 10:15:09,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.16666666666667) internal successors, (451), 6 states have internal predecessors, (451), 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 10:15:09,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2023-08-27 10:15:09,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2023-08-27 10:15:09,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2023-08-27 10:15:09,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2023-08-27 10:15:09,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2023-08-27 10:15:09,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2023-08-27 10:15:09,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (9 of 16 remaining) [2023-08-27 10:15:09,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 16 remaining) [2023-08-27 10:15:09,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 16 remaining) [2023-08-27 10:15:09,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 16 remaining) [2023-08-27 10:15:09,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2023-08-27 10:15:09,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2023-08-27 10:15:09,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2023-08-27 10:15:09,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2023-08-27 10:15:09,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2023-08-27 10:15:09,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2023-08-27 10:15:09,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-27 10:15:09,005 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:15:09,009 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 10:15:09,009 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 10:15:09,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 10:15:09 BasicIcfg [2023-08-27 10:15:09,012 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 10:15:09,012 INFO L158 Benchmark]: Toolchain (without parser) took 7201.31ms. Allocated memory was 358.6MB in the beginning and 650.1MB in the end (delta: 291.5MB). Free memory was 313.6MB in the beginning and 548.2MB in the end (delta: -234.7MB). Peak memory consumption was 59.2MB. Max. memory is 16.0GB. [2023-08-27 10:15:09,013 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 358.6MB. Free memory was 334.8MB in the beginning and 334.7MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 10:15:09,013 INFO L158 Benchmark]: CACSL2BoogieTranslator took 419.71ms. Allocated memory is still 358.6MB. Free memory was 313.3MB in the beginning and 293.2MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 10:15:09,013 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.98ms. Allocated memory is still 358.6MB. Free memory was 293.2MB in the beginning and 291.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 10:15:09,013 INFO L158 Benchmark]: Boogie Preprocessor took 60.72ms. Allocated memory is still 358.6MB. Free memory was 291.2MB in the beginning and 336.7MB in the end (delta: -45.5MB). Peak memory consumption was 6.9MB. Max. memory is 16.0GB. [2023-08-27 10:15:09,014 INFO L158 Benchmark]: RCFGBuilder took 442.69ms. Allocated memory is still 358.6MB. Free memory was 336.7MB in the beginning and 321.0MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-27 10:15:09,014 INFO L158 Benchmark]: TraceAbstraction took 6207.48ms. Allocated memory was 358.6MB in the beginning and 650.1MB in the end (delta: 291.5MB). Free memory was 320.4MB in the beginning and 548.2MB in the end (delta: -227.9MB). Peak memory consumption was 64.9MB. Max. memory is 16.0GB. [2023-08-27 10:15:09,015 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 358.6MB. Free memory was 334.8MB in the beginning and 334.7MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 419.71ms. Allocated memory is still 358.6MB. Free memory was 313.3MB in the beginning and 293.2MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 63.98ms. Allocated memory is still 358.6MB. Free memory was 293.2MB in the beginning and 291.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 60.72ms. Allocated memory is still 358.6MB. Free memory was 291.2MB in the beginning and 336.7MB in the end (delta: -45.5MB). Peak memory consumption was 6.9MB. Max. memory is 16.0GB. * RCFGBuilder took 442.69ms. Allocated memory is still 358.6MB. Free memory was 336.7MB in the beginning and 321.0MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 6207.48ms. Allocated memory was 358.6MB in the beginning and 650.1MB in the end (delta: 291.5MB). Free memory was 320.4MB in the beginning and 548.2MB in the end (delta: -227.9MB). Peak memory consumption was 64.9MB. 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: 2.3s, 97 PlacesBefore, 33 PlacesAfterwards, 90 TransitionsBefore, 23 TransitionsAfterwards, 2160 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 3 ChoiceCompositions, 85 TotalNumberOfCompositions, 5556 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2523, independent: 2358, independent conditional: 0, independent unconditional: 2358, dependent: 165, dependent conditional: 0, dependent unconditional: 165, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1169, independent: 1136, independent conditional: 0, independent unconditional: 1136, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2523, independent: 1222, independent conditional: 0, independent unconditional: 1222, dependent: 132, dependent conditional: 0, dependent unconditional: 132, unknown: 1169, unknown conditional: 0, unknown unconditional: 1169] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, 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: 731]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 731]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 746]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 746]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 758]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 758]: 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, 120 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: 6.1s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 214 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 214 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 646 IncrementalHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 10 mSDtfsCounter, 646 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=573occurred in iteration=9, InterpolantAutomatonStates: 55, 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, 1.2s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 10:15:09,032 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...