/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 INSUFFICIENT_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 03:53:44,477 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 03:53:44,524 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 03:53:44,527 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 03:53:44,527 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 03:53:44,544 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 03:53:44,544 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 03:53:44,545 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 03:53:44,545 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 03:53:44,545 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 03:53:44,545 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 03:53:44,546 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 03:53:44,546 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 03:53:44,546 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 03:53:44,546 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 03:53:44,546 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 03:53:44,547 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 03:53:44,547 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 03:53:44,547 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 03:53:44,547 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 03:53:44,548 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 03:53:44,548 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 03:53:44,548 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 03:53:44,548 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 03:53:44,548 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 03:53:44,549 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 03:53:44,549 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 03:53:44,549 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 03:53:44,549 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 03:53:44,549 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 03:53:44,550 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 03:53:44,550 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 03:53:44,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 03:53:44,550 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 03:53:44,550 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 03:53:44,550 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 03:53:44,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 03:53:44,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 03:53:44,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 03:53:44,801 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 03:53:44,801 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 03:53:44,802 INFO L431 ainManager$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 03:53:45,701 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 03:53:45,935 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 03:53:45,935 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 03:53:45,945 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d400c267b/2e3927d694794480bcef4a87f955d76c/FLAGd5db40665 [2023-08-27 03:53:45,953 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d400c267b/2e3927d694794480bcef4a87f955d76c [2023-08-27 03:53:45,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 03:53:45,955 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 03:53:45,956 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 03:53:45,956 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 03:53:45,958 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 03:53:45,958 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:53:45" (1/1) ... [2023-08-27 03:53:45,959 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33fb7905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:45, skipping insertion in model container [2023-08-27 03:53:45,959 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:53:45" (1/1) ... [2023-08-27 03:53:45,980 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 03:53:46,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 03:53:46,230 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 03:53:46,259 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-27 03:53:46,260 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-27 03:53:46,271 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 03:53:46,295 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 03:53:46,295 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 03:53:46,300 INFO L206 MainTranslator]: Completed translation [2023-08-27 03:53:46,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:46 WrapperNode [2023-08-27 03:53:46,301 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 03:53:46,302 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 03:53:46,302 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 03:53:46,302 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 03:53:46,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:46" (1/1) ... [2023-08-27 03:53:46,339 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:46" (1/1) ... [2023-08-27 03:53:46,356 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2023-08-27 03:53:46,357 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 03:53:46,358 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 03:53:46,358 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 03:53:46,358 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 03:53:46,364 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:46" (1/1) ... [2023-08-27 03:53:46,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:46" (1/1) ... [2023-08-27 03:53:46,377 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:46" (1/1) ... [2023-08-27 03:53:46,377 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:46" (1/1) ... [2023-08-27 03:53:46,380 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:46" (1/1) ... [2023-08-27 03:53:46,381 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:46" (1/1) ... [2023-08-27 03:53:46,382 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:46" (1/1) ... [2023-08-27 03:53:46,383 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:46" (1/1) ... [2023-08-27 03:53:46,384 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 03:53:46,385 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 03:53:46,385 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 03:53:46,385 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 03:53:46,386 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:46" (1/1) ... [2023-08-27 03:53:46,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 03:53:46,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 03:53:46,414 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 03:53:46,432 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 03:53:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 03:53:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 03:53:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 03:53:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 03:53:46,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 03:53:46,443 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-27 03:53:46,443 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-27 03:53:46,443 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-27 03:53:46,443 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-27 03:53:46,443 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-27 03:53:46,443 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-27 03:53:46,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 03:53:46,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 03:53:46,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 03:53:46,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 03:53:46,445 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 03:53:46,544 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 03:53:46,546 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 03:53:46,678 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 03:53:46,694 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 03:53:46,694 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 03:53:46,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:53:46 BoogieIcfgContainer [2023-08-27 03:53:46,696 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 03:53:46,697 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 03:53:46,697 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 03:53:46,699 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 03:53:46,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 03:53:45" (1/3) ... [2023-08-27 03:53:46,700 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a694b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 03:53:46, skipping insertion in model container [2023-08-27 03:53:46,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:53:46" (2/3) ... [2023-08-27 03:53:46,700 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a694b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 03:53:46, skipping insertion in model container [2023-08-27 03:53:46,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:53:46" (3/3) ... [2023-08-27 03:53:46,701 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-27 03:53:46,713 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 03:53:46,713 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-08-27 03:53:46,713 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 03:53:46,756 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:53:46,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 93 transitions, 201 flow [2023-08-27 03:53:46,872 INFO L124 PetriNetUnfolderBase]: 3/90 cut-off events. [2023-08-27 03:53:46,872 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 03:53:46,875 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 03:53:46,876 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 93 transitions, 201 flow [2023-08-27 03:53:46,879 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 90 transitions, 189 flow [2023-08-27 03:53:46,882 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:53:46,897 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 90 transitions, 189 flow [2023-08-27 03:53:46,900 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 90 transitions, 189 flow [2023-08-27 03:53:46,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 90 transitions, 189 flow [2023-08-27 03:53:46,927 INFO L124 PetriNetUnfolderBase]: 3/90 cut-off events. [2023-08-27 03:53:46,927 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 03:53:46,927 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 03:53:46,929 INFO L119 LiptonReduction]: Number of co-enabled transitions 2160 [2023-08-27 03:53:48,764 INFO L134 LiptonReduction]: Checked pairs total: 5556 [2023-08-27 03:53:48,764 INFO L136 LiptonReduction]: Total number of compositions: 85 [2023-08-27 03:53:48,773 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 03:53:48,777 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;@68fc8fe2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:53:48,777 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-08-27 03:53:48,779 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:53:48,779 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-27 03:53:48,779 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 03:53:48,779 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:53:48,780 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 03:53:48,780 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 03:53:48,784 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:53:48,784 INFO L85 PathProgramCache]: Analyzing trace with hash 333332550, now seen corresponding path program 1 times [2023-08-27 03:53:48,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:53:48,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804705785] [2023-08-27 03:53:48,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:53:48,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:53:48,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:53:48,942 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 03:53:48,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:53:48,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804705785] [2023-08-27 03:53:48,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804705785] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:53:48,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:53:48,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 03:53:48,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957685684] [2023-08-27 03:53:48,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:53:48,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 03:53:48,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:53:48,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 03:53:48,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 03:53:48,968 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 178 [2023-08-27 03:53:48,970 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 03:53:48,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:53:48,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 178 [2023-08-27 03:53:48,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:53:49,136 INFO L124 PetriNetUnfolderBase]: 496/811 cut-off events. [2023-08-27 03:53:49,137 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-08-27 03:53:49,140 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 03:53:49,145 INFO L140 encePairwiseOnDemand]: 168/178 looper letters, 30 selfloop transitions, 4 changer transitions 0/36 dead transitions. [2023-08-27 03:53:49,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 155 flow [2023-08-27 03:53:49,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 03:53:49,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 03:53:49,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2023-08-27 03:53:49,159 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49625468164794007 [2023-08-27 03:53:49,160 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 265 transitions. [2023-08-27 03:53:49,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 265 transitions. [2023-08-27 03:53:49,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:53:49,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 265 transitions. [2023-08-27 03:53:49,167 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 03:53:49,169 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 03:53:49,169 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 03:53:49,171 INFO L175 Difference]: Start difference. First operand has 33 places, 23 transitions, 55 flow. Second operand 3 states and 265 transitions. [2023-08-27 03:53:49,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 155 flow [2023-08-27 03:53:49,172 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 03:53:49,174 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 88 flow [2023-08-27 03:53:49,175 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 03:53:49,177 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2023-08-27 03:53:49,177 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 88 flow [2023-08-27 03:53:49,177 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 03:53:49,177 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:53:49,178 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:53:49,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 03:53:49,178 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 03:53:49,182 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:53:49,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1345838524, now seen corresponding path program 1 times [2023-08-27 03:53:49,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:53:49,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125994068] [2023-08-27 03:53:49,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:53:49,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:53:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:53:49,380 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 03:53:49,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:53:49,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125994068] [2023-08-27 03:53:49,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125994068] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:53:49,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:53:49,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 03:53:49,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135828374] [2023-08-27 03:53:49,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:53:49,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 03:53:49,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:53:49,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 03:53:49,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 03:53:49,383 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 178 [2023-08-27 03:53:49,384 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 03:53:49,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:53:49,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 178 [2023-08-27 03:53:49,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:53:49,500 INFO L124 PetriNetUnfolderBase]: 753/1342 cut-off events. [2023-08-27 03:53:49,501 INFO L125 PetriNetUnfolderBase]: For 194/216 co-relation queries the response was YES. [2023-08-27 03:53:49,503 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 03:53:49,509 INFO L140 encePairwiseOnDemand]: 171/178 looper letters, 35 selfloop transitions, 6 changer transitions 0/45 dead transitions. [2023-08-27 03:53:49,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 45 transitions, 233 flow [2023-08-27 03:53:49,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 03:53:49,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 03:53:49,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2023-08-27 03:53:49,512 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47191011235955055 [2023-08-27 03:53:49,512 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 252 transitions. [2023-08-27 03:53:49,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 252 transitions. [2023-08-27 03:53:49,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:53:49,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 252 transitions. [2023-08-27 03:53:49,513 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 03:53:49,514 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 03:53:49,515 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 03:53:49,515 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 88 flow. Second operand 3 states and 252 transitions. [2023-08-27 03:53:49,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 45 transitions, 233 flow [2023-08-27 03:53:49,516 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 03:53:49,517 INFO L231 Difference]: Finished difference. Result has 36 places, 31 transitions, 130 flow [2023-08-27 03:53:49,518 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 03:53:49,519 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 3 predicate places. [2023-08-27 03:53:49,519 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 31 transitions, 130 flow [2023-08-27 03:53:49,521 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 03:53:49,522 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:53:49,522 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:53:49,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 03:53:49,526 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 03:53:49,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:53:49,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1228679793, now seen corresponding path program 1 times [2023-08-27 03:53:49,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:53:49,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180045500] [2023-08-27 03:53:49,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:53:49,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:53:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:53:49,647 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 03:53:49,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:53:49,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180045500] [2023-08-27 03:53:49,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180045500] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:53:49,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:53:49,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 03:53:49,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269096619] [2023-08-27 03:53:49,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:53:49,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 03:53:49,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:53:49,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 03:53:49,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 03:53:49,650 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 178 [2023-08-27 03:53:49,650 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 03:53:49,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:53:49,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 178 [2023-08-27 03:53:49,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:53:49,785 INFO L124 PetriNetUnfolderBase]: 734/1318 cut-off events. [2023-08-27 03:53:49,785 INFO L125 PetriNetUnfolderBase]: For 624/644 co-relation queries the response was YES. [2023-08-27 03:53:49,787 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 03:53:49,792 INFO L140 encePairwiseOnDemand]: 171/178 looper letters, 43 selfloop transitions, 10 changer transitions 0/57 dead transitions. [2023-08-27 03:53:49,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 57 transitions, 342 flow [2023-08-27 03:53:49,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 03:53:49,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 03:53:49,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2023-08-27 03:53:49,793 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4648876404494382 [2023-08-27 03:53:49,793 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 331 transitions. [2023-08-27 03:53:49,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 331 transitions. [2023-08-27 03:53:49,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:53:49,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 331 transitions. [2023-08-27 03:53:49,794 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 03:53:49,796 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 03:53:49,796 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 03:53:49,796 INFO L175 Difference]: Start difference. First operand has 36 places, 31 transitions, 130 flow. Second operand 4 states and 331 transitions. [2023-08-27 03:53:49,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 57 transitions, 342 flow [2023-08-27 03:53:49,800 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 03:53:49,800 INFO L231 Difference]: Finished difference. Result has 40 places, 38 transitions, 198 flow [2023-08-27 03:53:49,801 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 03:53:49,802 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 7 predicate places. [2023-08-27 03:53:49,802 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 38 transitions, 198 flow [2023-08-27 03:53:49,802 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 03:53:49,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:53:49,802 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:53:49,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 03:53:49,805 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 03:53:49,805 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:53:49,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1228680723, now seen corresponding path program 1 times [2023-08-27 03:53:49,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:53:49,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683728465] [2023-08-27 03:53:49,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:53:49,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:53:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:53:49,899 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 03:53:49,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:53:49,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683728465] [2023-08-27 03:53:49,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683728465] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:53:49,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:53:49,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 03:53:49,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995513539] [2023-08-27 03:53:49,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:53:49,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 03:53:49,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:53:49,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 03:53:49,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 03:53:49,901 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 178 [2023-08-27 03:53:49,901 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 03:53:49,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:53:49,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 178 [2023-08-27 03:53:49,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:53:50,011 INFO L124 PetriNetUnfolderBase]: 715/1286 cut-off events. [2023-08-27 03:53:50,012 INFO L125 PetriNetUnfolderBase]: For 1028/1052 co-relation queries the response was YES. [2023-08-27 03:53:50,014 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 03:53:50,018 INFO L140 encePairwiseOnDemand]: 171/178 looper letters, 51 selfloop transitions, 12 changer transitions 0/67 dead transitions. [2023-08-27 03:53:50,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 67 transitions, 452 flow [2023-08-27 03:53:50,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 03:53:50,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 03:53:50,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2023-08-27 03:53:50,019 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4648876404494382 [2023-08-27 03:53:50,020 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 331 transitions. [2023-08-27 03:53:50,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 331 transitions. [2023-08-27 03:53:50,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:53:50,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 331 transitions. [2023-08-27 03:53:50,021 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 03:53:50,021 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 03:53:50,022 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 03:53:50,022 INFO L175 Difference]: Start difference. First operand has 40 places, 38 transitions, 198 flow. Second operand 4 states and 331 transitions. [2023-08-27 03:53:50,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 67 transitions, 452 flow [2023-08-27 03:53:50,026 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 03:53:50,026 INFO L231 Difference]: Finished difference. Result has 46 places, 43 transitions, 294 flow [2023-08-27 03:53:50,026 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 03:53:50,027 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 13 predicate places. [2023-08-27 03:53:50,028 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 43 transitions, 294 flow [2023-08-27 03:53:50,028 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 03:53:50,028 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:53:50,028 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:53:50,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 03:53:50,028 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 03:53:50,028 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:53:50,028 INFO L85 PathProgramCache]: Analyzing trace with hash -697056883, now seen corresponding path program 1 times [2023-08-27 03:53:50,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:53:50,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264848190] [2023-08-27 03:53:50,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:53:50,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:53:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:53:50,062 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 03:53:50,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:53:50,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264848190] [2023-08-27 03:53:50,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264848190] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:53:50,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:53:50,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 03:53:50,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566669606] [2023-08-27 03:53:50,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:53:50,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 03:53:50,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:53:50,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 03:53:50,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 03:53:50,067 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 178 [2023-08-27 03:53:50,068 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 03:53:50,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:53:50,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 178 [2023-08-27 03:53:50,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:53:50,170 INFO L124 PetriNetUnfolderBase]: 547/922 cut-off events. [2023-08-27 03:53:50,171 INFO L125 PetriNetUnfolderBase]: For 2476/2535 co-relation queries the response was YES. [2023-08-27 03:53:50,172 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 03:53:50,175 INFO L140 encePairwiseOnDemand]: 171/178 looper letters, 53 selfloop transitions, 4 changer transitions 0/62 dead transitions. [2023-08-27 03:53:50,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 62 transitions, 566 flow [2023-08-27 03:53:50,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 03:53:50,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 03:53:50,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 334 transitions. [2023-08-27 03:53:50,177 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4691011235955056 [2023-08-27 03:53:50,177 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 334 transitions. [2023-08-27 03:53:50,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 334 transitions. [2023-08-27 03:53:50,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:53:50,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 334 transitions. [2023-08-27 03:53:50,178 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 03:53:50,179 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 03:53:50,179 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 03:53:50,179 INFO L175 Difference]: Start difference. First operand has 46 places, 43 transitions, 294 flow. Second operand 4 states and 334 transitions. [2023-08-27 03:53:50,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 62 transitions, 566 flow [2023-08-27 03:53:50,181 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 03:53:50,182 INFO L231 Difference]: Finished difference. Result has 45 places, 40 transitions, 286 flow [2023-08-27 03:53:50,183 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 03:53:50,184 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 12 predicate places. [2023-08-27 03:53:50,184 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 40 transitions, 286 flow [2023-08-27 03:53:50,184 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 03:53:50,184 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:53:50,185 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:53:50,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 03:53:50,185 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 03:53:50,185 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:53:50,185 INFO L85 PathProgramCache]: Analyzing trace with hash -82799026, now seen corresponding path program 1 times [2023-08-27 03:53:50,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:53:50,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108261481] [2023-08-27 03:53:50,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:53:50,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:53:50,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:53:50,219 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 03:53:50,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:53:50,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108261481] [2023-08-27 03:53:50,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108261481] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:53:50,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:53:50,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 03:53:50,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305496579] [2023-08-27 03:53:50,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:53:50,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 03:53:50,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:53:50,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 03:53:50,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 03:53:50,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 178 [2023-08-27 03:53:50,225 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 03:53:50,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:53:50,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 178 [2023-08-27 03:53:50,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:53:50,304 INFO L124 PetriNetUnfolderBase]: 349/602 cut-off events. [2023-08-27 03:53:50,304 INFO L125 PetriNetUnfolderBase]: For 1853/1906 co-relation queries the response was YES. [2023-08-27 03:53:50,305 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 03:53:50,307 INFO L140 encePairwiseOnDemand]: 171/178 looper letters, 66 selfloop transitions, 7 changer transitions 0/78 dead transitions. [2023-08-27 03:53:50,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 78 transitions, 705 flow [2023-08-27 03:53:50,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 03:53:50,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 03:53:50,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 345 transitions. [2023-08-27 03:53:50,309 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4845505617977528 [2023-08-27 03:53:50,309 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 345 transitions. [2023-08-27 03:53:50,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 345 transitions. [2023-08-27 03:53:50,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:53:50,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 345 transitions. [2023-08-27 03:53:50,310 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 03:53:50,311 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 03:53:50,311 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 03:53:50,311 INFO L175 Difference]: Start difference. First operand has 45 places, 40 transitions, 286 flow. Second operand 4 states and 345 transitions. [2023-08-27 03:53:50,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 78 transitions, 705 flow [2023-08-27 03:53:50,314 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 03:53:50,315 INFO L231 Difference]: Finished difference. Result has 47 places, 43 transitions, 325 flow [2023-08-27 03:53:50,315 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 03:53:50,317 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 14 predicate places. [2023-08-27 03:53:50,317 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 43 transitions, 325 flow [2023-08-27 03:53:50,317 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 03:53:50,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:53:50,318 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:53:50,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 03:53:50,318 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 03:53:50,318 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:53:50,318 INFO L85 PathProgramCache]: Analyzing trace with hash -205458067, now seen corresponding path program 1 times [2023-08-27 03:53:50,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:53:50,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607102499] [2023-08-27 03:53:50,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:53:50,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:53:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:53:50,417 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 03:53:50,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:53:50,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607102499] [2023-08-27 03:53:50,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607102499] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:53:50,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:53:50,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 03:53:50,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101617873] [2023-08-27 03:53:50,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:53:50,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 03:53:50,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:53:50,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 03:53:50,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 03:53:50,418 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 178 [2023-08-27 03:53:50,418 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 03:53:50,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:53:50,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 178 [2023-08-27 03:53:50,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:53:50,517 INFO L124 PetriNetUnfolderBase]: 569/988 cut-off events. [2023-08-27 03:53:50,517 INFO L125 PetriNetUnfolderBase]: For 3324/3400 co-relation queries the response was YES. [2023-08-27 03:53:50,519 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 03:53:50,523 INFO L140 encePairwiseOnDemand]: 174/178 looper letters, 74 selfloop transitions, 5 changer transitions 3/86 dead transitions. [2023-08-27 03:53:50,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 86 transitions, 799 flow [2023-08-27 03:53:50,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 03:53:50,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 03:53:50,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 342 transitions. [2023-08-27 03:53:50,524 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4803370786516854 [2023-08-27 03:53:50,524 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 342 transitions. [2023-08-27 03:53:50,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 342 transitions. [2023-08-27 03:53:50,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:53:50,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 342 transitions. [2023-08-27 03:53:50,525 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 03:53:50,527 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 03:53:50,527 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 03:53:50,527 INFO L175 Difference]: Start difference. First operand has 47 places, 43 transitions, 325 flow. Second operand 4 states and 342 transitions. [2023-08-27 03:53:50,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 86 transitions, 799 flow [2023-08-27 03:53:50,530 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 03:53:50,531 INFO L231 Difference]: Finished difference. Result has 50 places, 46 transitions, 364 flow [2023-08-27 03:53:50,532 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 03:53:50,532 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 17 predicate places. [2023-08-27 03:53:50,532 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 46 transitions, 364 flow [2023-08-27 03:53:50,532 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 03:53:50,532 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:53:50,532 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:53:50,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 03:53:50,533 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 03:53:50,533 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:53:50,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1816292455, now seen corresponding path program 1 times [2023-08-27 03:53:50,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:53:50,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056253604] [2023-08-27 03:53:50,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:53:50,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:53:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:53:50,646 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 03:53:50,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:53:50,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056253604] [2023-08-27 03:53:50,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056253604] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:53:50,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:53:50,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 03:53:50,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014088845] [2023-08-27 03:53:50,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:53:50,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 03:53:50,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:53:50,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 03:53:50,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-27 03:53:50,648 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 178 [2023-08-27 03:53:50,648 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 03:53:50,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:53:50,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 178 [2023-08-27 03:53:50,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:53:50,770 INFO L124 PetriNetUnfolderBase]: 692/1229 cut-off events. [2023-08-27 03:53:50,770 INFO L125 PetriNetUnfolderBase]: For 3416/3426 co-relation queries the response was YES. [2023-08-27 03:53:50,772 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 03:53:50,776 INFO L140 encePairwiseOnDemand]: 171/178 looper letters, 70 selfloop transitions, 15 changer transitions 6/92 dead transitions. [2023-08-27 03:53:50,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 92 transitions, 838 flow [2023-08-27 03:53:50,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 03:53:50,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 03:53:50,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 413 transitions. [2023-08-27 03:53:50,780 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4640449438202247 [2023-08-27 03:53:50,780 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 413 transitions. [2023-08-27 03:53:50,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 413 transitions. [2023-08-27 03:53:50,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:53:50,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 413 transitions. [2023-08-27 03:53:50,781 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 03:53:50,782 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 03:53:50,782 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 03:53:50,782 INFO L175 Difference]: Start difference. First operand has 50 places, 46 transitions, 364 flow. Second operand 5 states and 413 transitions. [2023-08-27 03:53:50,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 92 transitions, 838 flow [2023-08-27 03:53:50,786 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 03:53:50,788 INFO L231 Difference]: Finished difference. Result has 55 places, 53 transitions, 504 flow [2023-08-27 03:53:50,788 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 03:53:50,789 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 22 predicate places. [2023-08-27 03:53:50,789 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 53 transitions, 504 flow [2023-08-27 03:53:50,789 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 03:53:50,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:53:50,790 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:53:50,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-27 03:53:50,790 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 03:53:50,792 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:53:50,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1917249533, now seen corresponding path program 2 times [2023-08-27 03:53:50,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:53:50,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134758437] [2023-08-27 03:53:50,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:53:50,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:53:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:53:50,862 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 03:53:50,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:53:50,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134758437] [2023-08-27 03:53:50,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134758437] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:53:50,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:53:50,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 03:53:50,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359968075] [2023-08-27 03:53:50,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:53:50,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 03:53:50,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:53:50,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 03:53:50,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 03:53:50,863 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 178 [2023-08-27 03:53:50,864 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 03:53:50,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:53:50,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 178 [2023-08-27 03:53:50,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:53:50,978 INFO L124 PetriNetUnfolderBase]: 521/1038 cut-off events. [2023-08-27 03:53:50,978 INFO L125 PetriNetUnfolderBase]: For 6144/6418 co-relation queries the response was YES. [2023-08-27 03:53:50,980 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 03:53:50,984 INFO L140 encePairwiseOnDemand]: 171/178 looper letters, 78 selfloop transitions, 8 changer transitions 3/95 dead transitions. [2023-08-27 03:53:50,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 95 transitions, 1025 flow [2023-08-27 03:53:50,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 03:53:50,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 03:53:50,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 413 transitions. [2023-08-27 03:53:50,986 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4640449438202247 [2023-08-27 03:53:50,986 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 413 transitions. [2023-08-27 03:53:50,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 413 transitions. [2023-08-27 03:53:50,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:53:50,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 413 transitions. [2023-08-27 03:53:50,987 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 03:53:50,988 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 03:53:50,988 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 03:53:50,988 INFO L175 Difference]: Start difference. First operand has 55 places, 53 transitions, 504 flow. Second operand 5 states and 413 transitions. [2023-08-27 03:53:50,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 95 transitions, 1025 flow [2023-08-27 03:53:50,993 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 03:53:50,997 INFO L231 Difference]: Finished difference. Result has 61 places, 56 transitions, 573 flow [2023-08-27 03:53:50,997 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 03:53:50,997 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 28 predicate places. [2023-08-27 03:53:50,998 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 56 transitions, 573 flow [2023-08-27 03:53:50,998 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 03:53:50,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:53:50,998 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:53:50,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 03:53:50,998 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 03:53:50,998 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:53:50,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1706980047, now seen corresponding path program 1 times [2023-08-27 03:53:50,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:53:51,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145318178] [2023-08-27 03:53:51,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:53:51,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:53:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:53:51,099 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 03:53:51,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:53:51,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145318178] [2023-08-27 03:53:51,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145318178] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:53:51,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:53:51,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 03:53:51,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879127923] [2023-08-27 03:53:51,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:53:51,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 03:53:51,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:53:51,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 03:53:51,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-27 03:53:51,102 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 178 [2023-08-27 03:53:51,103 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 03:53:51,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:53:51,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 178 [2023-08-27 03:53:51,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:53:51,278 INFO L124 PetriNetUnfolderBase]: 403/890 cut-off events. [2023-08-27 03:53:51,278 INFO L125 PetriNetUnfolderBase]: For 7248/7480 co-relation queries the response was YES. [2023-08-27 03:53:51,280 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 03:53:51,283 INFO L140 encePairwiseOnDemand]: 171/178 looper letters, 74 selfloop transitions, 15 changer transitions 5/99 dead transitions. [2023-08-27 03:53:51,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 99 transitions, 1083 flow [2023-08-27 03:53:51,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 03:53:51,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 03:53:51,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 574 transitions. [2023-08-27 03:53:51,285 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4606741573033708 [2023-08-27 03:53:51,285 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 574 transitions. [2023-08-27 03:53:51,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 574 transitions. [2023-08-27 03:53:51,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:53:51,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 574 transitions. [2023-08-27 03:53:51,287 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 03:53:51,288 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 03:53:51,288 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 03:53:51,288 INFO L175 Difference]: Start difference. First operand has 61 places, 56 transitions, 573 flow. Second operand 7 states and 574 transitions. [2023-08-27 03:53:51,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 99 transitions, 1083 flow [2023-08-27 03:53:51,294 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 03:53:51,295 INFO L231 Difference]: Finished difference. Result has 67 places, 50 transitions, 518 flow [2023-08-27 03:53:51,295 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 03:53:51,295 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 34 predicate places. [2023-08-27 03:53:51,295 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 50 transitions, 518 flow [2023-08-27 03:53:51,296 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 03:53:51,296 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:53:51,296 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:53:51,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 03:53:51,296 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 03:53:51,296 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:53:51,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1750419955, now seen corresponding path program 1 times [2023-08-27 03:53:51,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:53:51,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944063893] [2023-08-27 03:53:51,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:53:51,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:53:51,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:53:51,332 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 03:53:51,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:53:51,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944063893] [2023-08-27 03:53:51,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944063893] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:53:51,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:53:51,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 03:53:51,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711677922] [2023-08-27 03:53:51,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:53:51,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 03:53:51,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:53:51,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 03:53:51,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-27 03:53:51,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 178 [2023-08-27 03:53:51,334 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 03:53:51,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:53:51,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 178 [2023-08-27 03:53:51,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:53:51,433 INFO L124 PetriNetUnfolderBase]: 296/686 cut-off events. [2023-08-27 03:53:51,433 INFO L125 PetriNetUnfolderBase]: For 4714/4835 co-relation queries the response was YES. [2023-08-27 03:53:51,435 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 03:53:51,436 INFO L140 encePairwiseOnDemand]: 171/178 looper letters, 13 selfloop transitions, 6 changer transitions 48/69 dead transitions. [2023-08-27 03:53:51,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 69 transitions, 828 flow [2023-08-27 03:53:51,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 03:53:51,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 03:53:51,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 413 transitions. [2023-08-27 03:53:51,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4640449438202247 [2023-08-27 03:53:51,439 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 413 transitions. [2023-08-27 03:53:51,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 413 transitions. [2023-08-27 03:53:51,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:53:51,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 413 transitions. [2023-08-27 03:53:51,440 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 03:53:51,441 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 03:53:51,441 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 03:53:51,442 INFO L175 Difference]: Start difference. First operand has 67 places, 50 transitions, 518 flow. Second operand 5 states and 413 transitions. [2023-08-27 03:53:51,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 69 transitions, 828 flow [2023-08-27 03:53:51,449 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 03:53:51,449 INFO L231 Difference]: Finished difference. Result has 64 places, 18 transitions, 154 flow [2023-08-27 03:53:51,450 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 03:53:51,450 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 31 predicate places. [2023-08-27 03:53:51,450 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 18 transitions, 154 flow [2023-08-27 03:53:51,450 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 03:53:51,450 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:53:51,451 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:53:51,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-27 03:53:51,451 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 03:53:51,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:53:51,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1376756243, now seen corresponding path program 1 times [2023-08-27 03:53:51,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:53:51,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137266927] [2023-08-27 03:53:51,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:53:51,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:53:51,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:53:51,527 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 03:53:51,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:53:51,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137266927] [2023-08-27 03:53:51,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137266927] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:53:51,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:53:51,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 03:53:51,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849741125] [2023-08-27 03:53:51,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:53:51,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 03:53:51,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:53:51,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 03:53:51,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-27 03:53:51,529 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 178 [2023-08-27 03:53:51,530 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 03:53:51,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:53:51,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 178 [2023-08-27 03:53:51,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:53:51,555 INFO L124 PetriNetUnfolderBase]: 7/32 cut-off events. [2023-08-27 03:53:51,555 INFO L125 PetriNetUnfolderBase]: For 190/193 co-relation queries the response was YES. [2023-08-27 03:53:51,555 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 03:53:51,557 INFO L140 encePairwiseOnDemand]: 172/178 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2023-08-27 03:53:51,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 23 transitions, 223 flow [2023-08-27 03:53:51,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 03:53:51,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 03:53:51,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 533 transitions. [2023-08-27 03:53:51,559 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42776886035313 [2023-08-27 03:53:51,559 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 533 transitions. [2023-08-27 03:53:51,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 533 transitions. [2023-08-27 03:53:51,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:53:51,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 533 transitions. [2023-08-27 03:53:51,560 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 03:53:51,561 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 03:53:51,561 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 03:53:51,561 INFO L175 Difference]: Start difference. First operand has 64 places, 18 transitions, 154 flow. Second operand 7 states and 533 transitions. [2023-08-27 03:53:51,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 23 transitions, 223 flow [2023-08-27 03:53:51,562 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 03:53:51,562 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2023-08-27 03:53:51,562 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 03:53:51,563 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 8 predicate places. [2023-08-27 03:53:51,563 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2023-08-27 03:53:51,563 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 03:53:51,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2023-08-27 03:53:51,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2023-08-27 03:53:51,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2023-08-27 03:53:51,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2023-08-27 03:53:51,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2023-08-27 03:53:51,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2023-08-27 03:53:51,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (9 of 16 remaining) [2023-08-27 03:53:51,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 16 remaining) [2023-08-27 03:53:51,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 16 remaining) [2023-08-27 03:53:51,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 16 remaining) [2023-08-27 03:53:51,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2023-08-27 03:53:51,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2023-08-27 03:53:51,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2023-08-27 03:53:51,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2023-08-27 03:53:51,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2023-08-27 03:53:51,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2023-08-27 03:53:51,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-27 03:53:51,566 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:53:51,569 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 03:53:51,569 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 03:53:51,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 03:53:51 BasicIcfg [2023-08-27 03:53:51,572 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 03:53:51,572 INFO L158 Benchmark]: Toolchain (without parser) took 5616.65ms. Allocated memory was 413.1MB in the beginning and 736.1MB in the end (delta: 323.0MB). Free memory was 387.6MB in the beginning and 575.3MB in the end (delta: -187.6MB). Peak memory consumption was 135.9MB. Max. memory is 16.0GB. [2023-08-27 03:53:51,572 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 413.1MB. Free memory is still 390.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 03:53:51,572 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.59ms. Allocated memory is still 413.1MB. Free memory was 387.6MB in the beginning and 367.2MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 03:53:51,572 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.71ms. Allocated memory is still 413.1MB. Free memory was 367.2MB in the beginning and 365.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 03:53:51,573 INFO L158 Benchmark]: Boogie Preprocessor took 26.84ms. Allocated memory is still 413.1MB. Free memory was 365.1MB in the beginning and 363.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 03:53:51,573 INFO L158 Benchmark]: RCFGBuilder took 310.91ms. Allocated memory is still 413.1MB. Free memory was 363.5MB in the beginning and 348.4MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-27 03:53:51,573 INFO L158 Benchmark]: TraceAbstraction took 4874.47ms. Allocated memory was 413.1MB in the beginning and 736.1MB in the end (delta: 323.0MB). Free memory was 347.3MB in the beginning and 575.3MB in the end (delta: -228.0MB). Peak memory consumption was 96.1MB. Max. memory is 16.0GB. [2023-08-27 03:53:51,574 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 413.1MB. Free memory is still 390.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 345.59ms. Allocated memory is still 413.1MB. Free memory was 387.6MB in the beginning and 367.2MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 54.71ms. Allocated memory is still 413.1MB. Free memory was 367.2MB in the beginning and 365.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.84ms. Allocated memory is still 413.1MB. Free memory was 365.1MB in the beginning and 363.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 310.91ms. Allocated memory is still 413.1MB. Free memory was 363.5MB in the beginning and 348.4MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 4874.47ms. Allocated memory was 413.1MB in the beginning and 736.1MB in the end (delta: 323.0MB). Free memory was 347.3MB in the beginning and 575.3MB in the end (delta: -228.0MB). Peak memory consumption was 96.1MB. 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: 1.9s, 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: 4.8s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 214 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 214 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.3s 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, 0.9s 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 03:53:51,591 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...