/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_power.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 10:15:51,439 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 10:15:51,521 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-27 10:15:51,526 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 10:15:51,527 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 10:15:51,557 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 10:15:51,558 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 10:15:51,558 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 10:15:51,559 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 10:15:51,562 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 10:15:51,562 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 10:15:51,563 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 10:15:51,563 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 10:15:51,564 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 10:15:51,564 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 10:15:51,564 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 10:15:51,565 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 10:15:51,565 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 10:15:51,565 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 10:15:51,565 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 10:15:51,565 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 10:15:51,566 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 10:15:51,566 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 10:15:51,567 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 10:15:51,567 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 10:15:51,567 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 10:15:51,568 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 10:15:51,568 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 10:15:51,568 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 10:15:51,568 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 10:15:51,569 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 10:15:51,569 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 10:15:51,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 10:15:51,570 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 10:15:51,570 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 10:15:51,570 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 10:15:51,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 10:15:51,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 10:15:51,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 10:15:51,939 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 10:15:51,940 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 10:15:51,941 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_power.oepc.i [2023-08-27 10:15:53,221 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 10:15:53,482 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 10:15:53,483 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_power.oepc.i [2023-08-27 10:15:53,500 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcba56ed7/a69ab7d9545046e384e4c60317cd4d33/FLAG17dfe9aa7 [2023-08-27 10:15:53,536 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcba56ed7/a69ab7d9545046e384e4c60317cd4d33 [2023-08-27 10:15:53,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 10:15:53,539 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 10:15:53,540 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 10:15:53,540 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 10:15:53,542 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 10:15:53,543 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:15:53" (1/1) ... [2023-08-27 10:15:53,544 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59cae17f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:53, skipping insertion in model container [2023-08-27 10:15:53,544 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:15:53" (1/1) ... [2023-08-27 10:15:53,595 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 10:15:53,972 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 10:15:53,987 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 10:15:54,009 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [268] [2023-08-27 10:15:54,011 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [268] [2023-08-27 10:15:54,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 10:15:54,096 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 10:15:54,096 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 10:15:54,101 INFO L206 MainTranslator]: Completed translation [2023-08-27 10:15:54,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:54 WrapperNode [2023-08-27 10:15:54,101 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 10:15:54,102 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 10:15:54,102 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 10:15:54,103 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 10:15:54,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:54" (1/1) ... [2023-08-27 10:15:54,128 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:54" (1/1) ... [2023-08-27 10:15:54,154 INFO L138 Inliner]: procedures = 176, calls = 87, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 239 [2023-08-27 10:15:54,155 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 10:15:54,156 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 10:15:54,156 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 10:15:54,156 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 10:15:54,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:54" (1/1) ... [2023-08-27 10:15:54,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:54" (1/1) ... [2023-08-27 10:15:54,168 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:54" (1/1) ... [2023-08-27 10:15:54,168 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:54" (1/1) ... [2023-08-27 10:15:54,182 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:54" (1/1) ... [2023-08-27 10:15:54,184 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:54" (1/1) ... [2023-08-27 10:15:54,187 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:54" (1/1) ... [2023-08-27 10:15:54,189 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:54" (1/1) ... [2023-08-27 10:15:54,193 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 10:15:54,194 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 10:15:54,194 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 10:15:54,194 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 10:15:54,195 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:54" (1/1) ... [2023-08-27 10:15:54,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 10:15:54,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 10:15:54,238 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-27 10:15:54,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-27 10:15:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 10:15:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 10:15:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 10:15:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 10:15:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 10:15:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 10:15:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-27 10:15:54,270 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-27 10:15:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-27 10:15:54,270 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-27 10:15:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-27 10:15:54,271 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-27 10:15:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 10:15:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 10:15:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 10:15:54,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 10:15:54,274 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 10:15:54,395 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 10:15:54,397 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 10:15:54,850 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 10:15:55,232 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 10:15:55,232 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 10:15:55,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:15:55 BoogieIcfgContainer [2023-08-27 10:15:55,235 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 10:15:55,237 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 10:15:55,237 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 10:15:55,240 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 10:15:55,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 10:15:53" (1/3) ... [2023-08-27 10:15:55,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7238f42c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:15:55, skipping insertion in model container [2023-08-27 10:15:55,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:15:54" (2/3) ... [2023-08-27 10:15:55,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7238f42c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:15:55, skipping insertion in model container [2023-08-27 10:15:55,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:15:55" (3/3) ... [2023-08-27 10:15:55,243 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_power.oepc.i [2023-08-27 10:15:55,260 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 10:15:55,261 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-08-27 10:15:55,261 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 10:15:55,353 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 10:15:55,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 136 transitions, 287 flow [2023-08-27 10:15:55,457 INFO L124 PetriNetUnfolderBase]: 3/133 cut-off events. [2023-08-27 10:15:55,457 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 10:15:55,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 133 events. 3/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2023-08-27 10:15:55,463 INFO L82 GeneralOperation]: Start removeDead. Operand has 143 places, 136 transitions, 287 flow [2023-08-27 10:15:55,467 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 133 transitions, 275 flow [2023-08-27 10:15:55,471 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 10:15:55,481 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 133 transitions, 275 flow [2023-08-27 10:15:55,483 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 133 transitions, 275 flow [2023-08-27 10:15:55,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 133 transitions, 275 flow [2023-08-27 10:15:55,527 INFO L124 PetriNetUnfolderBase]: 3/133 cut-off events. [2023-08-27 10:15:55,527 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 10:15:55,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 133 events. 3/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2023-08-27 10:15:55,531 INFO L119 LiptonReduction]: Number of co-enabled transitions 2744 [2023-08-27 10:16:03,611 INFO L134 LiptonReduction]: Checked pairs total: 9750 [2023-08-27 10:16:03,612 INFO L136 LiptonReduction]: Total number of compositions: 117 [2023-08-27 10:16:03,624 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 10:16:03,629 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;@6d91ba0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 10:16:03,629 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-27 10:16:03,632 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 10:16:03,632 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-27 10:16:03,633 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 10:16:03,633 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:16:03,633 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 10:16:03,634 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONASSERT, P1Err1ASSERT_VIOLATIONASSERT (and 16 more)] === [2023-08-27 10:16:03,638 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:16:03,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1014613809, now seen corresponding path program 1 times [2023-08-27 10:16:03,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:16:03,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328652458] [2023-08-27 10:16:03,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:16:03,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:16:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:16:03,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:16:03,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:16:03,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328652458] [2023-08-27 10:16:03,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328652458] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:16:03,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:16:03,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 10:16:03,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575218286] [2023-08-27 10:16:03,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:16:03,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 10:16:03,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:16:04,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 10:16:04,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 10:16:04,007 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 253 [2023-08-27 10:16:04,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:16:04,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:16:04,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 253 [2023-08-27 10:16:04,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:16:04,747 INFO L124 PetriNetUnfolderBase]: 2267/3438 cut-off events. [2023-08-27 10:16:04,747 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2023-08-27 10:16:04,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6925 conditions, 3438 events. 2267/3438 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 17247 event pairs, 821 based on Foata normal form. 0/2507 useless extension candidates. Maximal degree in co-relation 6914. Up to 2335 conditions per place. [2023-08-27 10:16:04,768 INFO L140 encePairwiseOnDemand]: 242/253 looper letters, 46 selfloop transitions, 4 changer transitions 0/51 dead transitions. [2023-08-27 10:16:04,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 217 flow [2023-08-27 10:16:04,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 10:16:04,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 10:16:04,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 382 transitions. [2023-08-27 10:16:04,780 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5032938076416338 [2023-08-27 10:16:04,780 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 382 transitions. [2023-08-27 10:16:04,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 382 transitions. [2023-08-27 10:16:04,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:16:04,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 382 transitions. [2023-08-27 10:16:04,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:16:04,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:16:04,792 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:16:04,793 INFO L175 Difference]: Start difference. First operand has 40 places, 31 transitions, 71 flow. Second operand 3 states and 382 transitions. [2023-08-27 10:16:04,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 217 flow [2023-08-27 10:16:04,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 51 transitions, 212 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 10:16:04,797 INFO L231 Difference]: Finished difference. Result has 40 places, 33 transitions, 102 flow [2023-08-27 10:16:04,799 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=40, PETRI_TRANSITIONS=33} [2023-08-27 10:16:04,802 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2023-08-27 10:16:04,802 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 33 transitions, 102 flow [2023-08-27 10:16:04,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:16:04,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:16:04,802 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 10:16:04,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 10:16:04,803 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONASSERT, P1Err1ASSERT_VIOLATIONASSERT (and 16 more)] === [2023-08-27 10:16:04,803 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:16:04,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1014677316, now seen corresponding path program 1 times [2023-08-27 10:16:04,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:16:04,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488276594] [2023-08-27 10:16:04,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:16:04,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:16:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:16:04,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:16:04,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:16:04,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488276594] [2023-08-27 10:16:04,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488276594] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:16:04,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:16:04,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 10:16:04,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007139462] [2023-08-27 10:16:04,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:16:04,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 10:16:04,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:16:04,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 10:16:04,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 10:16:04,980 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 253 [2023-08-27 10:16:04,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:16:04,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:16:04,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 253 [2023-08-27 10:16:04,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:16:05,497 INFO L124 PetriNetUnfolderBase]: 1720/2725 cut-off events. [2023-08-27 10:16:05,497 INFO L125 PetriNetUnfolderBase]: For 170/185 co-relation queries the response was YES. [2023-08-27 10:16:05,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6465 conditions, 2725 events. 1720/2725 cut-off events. For 170/185 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 14249 event pairs, 475 based on Foata normal form. 0/2230 useless extension candidates. Maximal degree in co-relation 6454. Up to 2232 conditions per place. [2023-08-27 10:16:05,513 INFO L140 encePairwiseOnDemand]: 250/253 looper letters, 43 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2023-08-27 10:16:05,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 49 transitions, 240 flow [2023-08-27 10:16:05,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 10:16:05,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 10:16:05,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 377 transitions. [2023-08-27 10:16:05,518 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49670619235836627 [2023-08-27 10:16:05,518 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 377 transitions. [2023-08-27 10:16:05,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 377 transitions. [2023-08-27 10:16:05,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:16:05,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 377 transitions. [2023-08-27 10:16:05,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:16:05,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:16:05,524 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:16:05,524 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 102 flow. Second operand 3 states and 377 transitions. [2023-08-27 10:16:05,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 49 transitions, 240 flow [2023-08-27 10:16:05,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 49 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 10:16:05,527 INFO L231 Difference]: Finished difference. Result has 40 places, 32 transitions, 100 flow [2023-08-27 10:16:05,528 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=40, PETRI_TRANSITIONS=32} [2023-08-27 10:16:05,529 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2023-08-27 10:16:05,531 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 32 transitions, 100 flow [2023-08-27 10:16:05,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:16:05,532 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:16:05,533 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-27 10:16:05,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 10:16:05,537 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONASSERT, P1Err1ASSERT_VIOLATIONASSERT (and 16 more)] === [2023-08-27 10:16:05,540 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:16:05,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1390226653, now seen corresponding path program 1 times [2023-08-27 10:16:05,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:16:05,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417671665] [2023-08-27 10:16:05,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:16:05,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:16:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 10:16:05,564 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 10:16:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 10:16:05,614 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 10:16:05,615 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 10:16:05,615 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location P1Err1ASSERT_VIOLATIONASSERT (19 of 20 remaining) [2023-08-27 10:16:05,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-08-27 10:16:05,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-08-27 10:16:05,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONASSERT (16 of 20 remaining) [2023-08-27 10:16:05,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err1ASSERT_VIOLATIONASSERT (15 of 20 remaining) [2023-08-27 10:16:05,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-08-27 10:16:05,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-08-27 10:16:05,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-08-27 10:16:05,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining) [2023-08-27 10:16:05,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (10 of 20 remaining) [2023-08-27 10:16:05,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-08-27 10:16:05,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-27 10:16:05,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 20 remaining) [2023-08-27 10:16:05,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-08-27 10:16:05,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-08-27 10:16:05,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONASSERT (4 of 20 remaining) [2023-08-27 10:16:05,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-08-27 10:16:05,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-08-27 10:16:05,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-08-27 10:16:05,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-08-27 10:16:05,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 10:16:05,625 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-27 10:16:05,630 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 10:16:05,630 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 10:16:05,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 10:16:05 BasicIcfg [2023-08-27 10:16:05,679 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 10:16:05,680 INFO L158 Benchmark]: Toolchain (without parser) took 12140.61ms. Allocated memory was 356.5MB in the beginning and 513.8MB in the end (delta: 157.3MB). Free memory was 331.1MB in the beginning and 236.4MB in the end (delta: 94.8MB). Peak memory consumption was 253.1MB. Max. memory is 16.0GB. [2023-08-27 10:16:05,680 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 356.5MB. Free memory is still 333.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 10:16:05,680 INFO L158 Benchmark]: CACSL2BoogieTranslator took 561.80ms. Allocated memory is still 356.5MB. Free memory was 331.1MB in the beginning and 304.5MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-27 10:16:05,680 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.81ms. Allocated memory is still 356.5MB. Free memory was 304.5MB in the beginning and 301.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 10:16:05,680 INFO L158 Benchmark]: Boogie Preprocessor took 38.05ms. Allocated memory is still 356.5MB. Free memory was 301.5MB in the beginning and 298.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 10:16:05,681 INFO L158 Benchmark]: RCFGBuilder took 1040.57ms. Allocated memory was 356.5MB in the beginning and 427.8MB in the end (delta: 71.3MB). Free memory was 298.7MB in the beginning and 379.9MB in the end (delta: -81.2MB). Peak memory consumption was 48.8MB. Max. memory is 16.0GB. [2023-08-27 10:16:05,681 INFO L158 Benchmark]: TraceAbstraction took 10442.12ms. Allocated memory was 427.8MB in the beginning and 513.8MB in the end (delta: 86.0MB). Free memory was 378.9MB in the beginning and 236.4MB in the end (delta: 142.5MB). Peak memory consumption was 227.4MB. Max. memory is 16.0GB. [2023-08-27 10:16:05,683 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 356.5MB. Free memory is still 333.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 561.80ms. Allocated memory is still 356.5MB. Free memory was 331.1MB in the beginning and 304.5MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 52.81ms. Allocated memory is still 356.5MB. Free memory was 304.5MB in the beginning and 301.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 38.05ms. Allocated memory is still 356.5MB. Free memory was 301.5MB in the beginning and 298.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 1040.57ms. Allocated memory was 356.5MB in the beginning and 427.8MB in the end (delta: 71.3MB). Free memory was 298.7MB in the beginning and 379.9MB in the end (delta: -81.2MB). Peak memory consumption was 48.8MB. Max. memory is 16.0GB. * TraceAbstraction took 10442.12ms. Allocated memory was 427.8MB in the beginning and 513.8MB in the end (delta: 86.0MB). Free memory was 378.9MB in the beginning and 236.4MB in the end (delta: 142.5MB). Peak memory consumption was 227.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 268]: Unsoundness Warning unspecified type, defaulting to int C: short [268] - GenericResultAtLocation [Line: 268]: Unsoundness Warning unspecified type, defaulting to int C: short [268] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.1s, 140 PlacesBefore, 40 PlacesAfterwards, 133 TransitionsBefore, 31 TransitionsAfterwards, 2744 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 117 TotalNumberOfCompositions, 9750 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3093, independent: 2803, independent conditional: 0, independent unconditional: 2803, dependent: 290, dependent conditional: 0, dependent unconditional: 290, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1450, independent: 1401, independent conditional: 0, independent unconditional: 1401, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3093, independent: 1402, independent conditional: 0, independent unconditional: 1402, dependent: 241, dependent conditional: 0, dependent unconditional: 241, unknown: 1450, unknown conditional: 0, unknown unconditional: 1450] , Statistics on independence cache: Total cache size (in pairs): 168, Positive cache size: 145, Positive conditional cache size: 0, Positive unconditional cache size: 145, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 18]: assertion can be violated assertion can be violated We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L715] 0 _Bool __unbuffered_p2_EAX$flush_delayed; [L716] 0 int __unbuffered_p2_EAX$mem_tmp; [L717] 0 _Bool __unbuffered_p2_EAX$r_buff0_thd0; [L718] 0 _Bool __unbuffered_p2_EAX$r_buff0_thd1; [L719] 0 _Bool __unbuffered_p2_EAX$r_buff0_thd2; [L720] 0 _Bool __unbuffered_p2_EAX$r_buff0_thd3; [L721] 0 _Bool __unbuffered_p2_EAX$r_buff1_thd0; [L722] 0 _Bool __unbuffered_p2_EAX$r_buff1_thd1; [L723] 0 _Bool __unbuffered_p2_EAX$r_buff1_thd2; [L724] 0 _Bool __unbuffered_p2_EAX$r_buff1_thd3; [L725] 0 _Bool __unbuffered_p2_EAX$read_delayed; [L726] 0 int *__unbuffered_p2_EAX$read_delayed_var; [L727] 0 int __unbuffered_p2_EAX$w_buff0; [L728] 0 _Bool __unbuffered_p2_EAX$w_buff0_used; [L729] 0 int __unbuffered_p2_EAX$w_buff1; [L730] 0 _Bool __unbuffered_p2_EAX$w_buff1_used; [L731] 0 _Bool main$tmp_guard0; [L732] 0 _Bool main$tmp_guard1; [L734] 0 int x = 0; [L735] 0 _Bool x$flush_delayed; [L736] 0 int x$mem_tmp; [L737] 0 _Bool x$r_buff0_thd0; [L738] 0 _Bool x$r_buff0_thd1; [L739] 0 _Bool x$r_buff0_thd2; [L740] 0 _Bool x$r_buff0_thd3; [L741] 0 _Bool x$r_buff1_thd0; [L742] 0 _Bool x$r_buff1_thd1; [L743] 0 _Bool x$r_buff1_thd2; [L744] 0 _Bool x$r_buff1_thd3; [L745] 0 _Bool x$read_delayed; [L746] 0 int *x$read_delayed_var; [L747] 0 int x$w_buff0; [L748] 0 _Bool x$w_buff0_used; [L749] 0 int x$w_buff1; [L750] 0 _Bool x$w_buff1_used; [L752] 0 int y = 0; [L753] 0 _Bool weak$$choice0; [L754] 0 _Bool weak$$choice1; [L755] 0 _Bool weak$$choice2; [L871] 0 pthread_t t2121; [L872] FCALL, FORK 0 pthread_create(&t2121, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=0, __unbuffered_p2_EAX$read_delayed_var={0:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t2121, ((void *)0), P0, ((void *)0))=-1, t2121={6:0}, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=0] [L873] 0 pthread_t t2122; [L874] FCALL, FORK 0 pthread_create(&t2122, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=0, __unbuffered_p2_EAX$read_delayed_var={0:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t2122, ((void *)0), P1, ((void *)0))=0, t2121={6:0}, t2122={5:0}, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=0] [L789] 2 x$w_buff1 = x$w_buff0 [L790] 2 x$w_buff0 = 1 [L791] 2 x$w_buff1_used = x$w_buff0_used [L792] 2 x$w_buff0_used = (_Bool)1 [L793] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L793] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L794] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L795] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L796] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L797] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L798] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=0, __unbuffered_p2_EAX$read_delayed_var={0:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=0] [L801] 2 x$w_buff1 = x$w_buff0 [L802] 2 x$w_buff0 = 2 [L803] 2 x$w_buff1_used = x$w_buff0_used [L804] 2 x$w_buff0_used = (_Bool)1 [L805] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND TRUE 2 !expression [L19] CALL 2 reach_error() [L18] COND FALSE 2 !(0) [L18] 2 __assert_fail ("0", "safe015_power.oepc.c", 9, __extension__ __PRETTY_FUNCTION__) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=0, __unbuffered_p2_EAX$read_delayed_var={0:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=1, x$w_buff1_used=1, x={3:0}, y=0] - UnprovableResult [Line: 782]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 820]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 820]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 856]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 856]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 872]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 874]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 876]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 168 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 101 IncrementalHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 3 mSDtfsCounter, 101 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=1, InterpolantAutomatonStates: 6, 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, 0.3s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 RESULT: Ultimate proved your program to be incorrect! [2023-08-27 10:16:05,704 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...