./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-10.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b64fc249111ce1622477a41c2b596a03a08ef102af2aafa943ca2a90b99192a7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 08:41:13,669 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 08:41:13,771 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 08:41:13,778 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 08:41:13,779 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 08:41:13,814 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 08:41:13,817 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 08:41:13,818 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 08:41:13,819 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 08:41:13,819 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 08:41:13,820 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 08:41:13,820 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 08:41:13,821 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 08:41:13,823 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 08:41:13,824 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 08:41:13,824 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 08:41:13,824 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 08:41:13,825 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 08:41:13,825 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 08:41:13,825 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 08:41:13,825 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 08:41:13,829 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 08:41:13,830 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 08:41:13,830 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 08:41:13,830 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 08:41:13,830 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 08:41:13,830 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 08:41:13,831 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 08:41:13,831 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 08:41:13,831 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 08:41:13,831 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 08:41:13,832 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 08:41:13,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 08:41:13,832 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 08:41:13,832 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 08:41:13,833 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 08:41:13,833 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 08:41:13,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 08:41:13,835 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 08:41:13,835 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 08:41:13,836 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 08:41:13,836 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 08:41:13,837 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b64fc249111ce1622477a41c2b596a03a08ef102af2aafa943ca2a90b99192a7 [2024-10-11 08:41:14,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 08:41:14,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 08:41:14,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 08:41:14,130 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 08:41:14,130 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 08:41:14,132 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-10.i [2024-10-11 08:41:15,639 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 08:41:15,869 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 08:41:15,870 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-10.i [2024-10-11 08:41:15,881 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d1f86640b/7e6c54275fac4cb78ee74d988567d95f/FLAGad563b25b [2024-10-11 08:41:16,226 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d1f86640b/7e6c54275fac4cb78ee74d988567d95f [2024-10-11 08:41:16,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 08:41:16,233 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 08:41:16,235 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 08:41:16,235 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 08:41:16,240 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 08:41:16,241 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:41:16" (1/1) ... [2024-10-11 08:41:16,242 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c940dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:41:16, skipping insertion in model container [2024-10-11 08:41:16,243 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:41:16" (1/1) ... [2024-10-11 08:41:16,282 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 08:41:16,443 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-10.i[915,928] [2024-10-11 08:41:16,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 08:41:16,590 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 08:41:16,609 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-10.i[915,928] [2024-10-11 08:41:16,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 08:41:16,680 INFO L204 MainTranslator]: Completed translation [2024-10-11 08:41:16,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:41:16 WrapperNode [2024-10-11 08:41:16,681 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 08:41:16,682 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 08:41:16,682 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 08:41:16,682 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 08:41:16,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:41:16" (1/1) ... [2024-10-11 08:41:16,700 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:41:16" (1/1) ... [2024-10-11 08:41:16,766 INFO L138 Inliner]: procedures = 26, calls = 61, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 337 [2024-10-11 08:41:16,767 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 08:41:16,768 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 08:41:16,768 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 08:41:16,768 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 08:41:16,780 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:41:16" (1/1) ... [2024-10-11 08:41:16,781 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:41:16" (1/1) ... [2024-10-11 08:41:16,789 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:41:16" (1/1) ... [2024-10-11 08:41:16,835 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 08:41:16,836 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:41:16" (1/1) ... [2024-10-11 08:41:16,836 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:41:16" (1/1) ... [2024-10-11 08:41:16,852 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:41:16" (1/1) ... [2024-10-11 08:41:16,856 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:41:16" (1/1) ... [2024-10-11 08:41:16,863 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:41:16" (1/1) ... [2024-10-11 08:41:16,867 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:41:16" (1/1) ... [2024-10-11 08:41:16,875 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 08:41:16,877 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 08:41:16,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 08:41:16,877 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 08:41:16,878 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:41:16" (1/1) ... [2024-10-11 08:41:16,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 08:41:16,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 08:41:16,911 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 08:41:16,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 08:41:16,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 08:41:16,968 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 08:41:16,969 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 08:41:16,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 08:41:16,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 08:41:16,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 08:41:17,087 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 08:41:17,090 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 08:41:17,635 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-10-11 08:41:17,635 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 08:41:17,677 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 08:41:17,679 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 08:41:17,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:41:17 BoogieIcfgContainer [2024-10-11 08:41:17,680 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 08:41:17,682 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 08:41:17,683 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 08:41:17,687 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 08:41:17,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 08:41:16" (1/3) ... [2024-10-11 08:41:17,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f53230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:41:17, skipping insertion in model container [2024-10-11 08:41:17,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:41:16" (2/3) ... [2024-10-11 08:41:17,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f53230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:41:17, skipping insertion in model container [2024-10-11 08:41:17,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:41:17" (3/3) ... [2024-10-11 08:41:17,690 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-10.i [2024-10-11 08:41:17,707 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 08:41:17,708 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 08:41:17,775 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 08:41:17,810 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@7df1fd8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 08:41:17,810 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 08:41:17,822 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 91 states have (on average 1.4395604395604396) internal successors, (131), 92 states have internal predecessors, (131), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-11 08:41:17,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-10-11 08:41:17,881 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 08:41:17,883 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 08:41:17,884 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 08:41:17,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 08:41:17,892 INFO L85 PathProgramCache]: Analyzing trace with hash -2129852944, now seen corresponding path program 1 times [2024-10-11 08:41:17,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 08:41:17,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490530841] [2024-10-11 08:41:17,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 08:41:17,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 08:41:18,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 08:41:18,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 08:41:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 08:41:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 08:41:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 08:41:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 08:41:18,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 08:41:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 08:41:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 08:41:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 08:41:18,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 08:41:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 08:41:18,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 08:41:18,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 08:41:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 08:41:18,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 08:41:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 08:41:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 08:41:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 08:41:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 08:41:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-11 08:41:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 08:41:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-11 08:41:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-11 08:41:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-11 08:41:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 08:41:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 08:41:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-11 08:41:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-11 08:41:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-11 08:41:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-11 08:41:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 08:41:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-11 08:41:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-11 08:41:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-10-11 08:41:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-10-11 08:41:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-10-11 08:41:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-10-11 08:41:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-10-11 08:41:18,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-11 08:41:18,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-10-11 08:41:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-10-11 08:41:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-10-11 08:41:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-10-11 08:41:18,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-10-11 08:41:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-10-11 08:41:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-10-11 08:41:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-10-11 08:41:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:18,598 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-10-11 08:41:18,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 08:41:18,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490530841] [2024-10-11 08:41:18,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490530841] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 08:41:18,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 08:41:18,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 08:41:18,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936669820] [2024-10-11 08:41:18,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 08:41:18,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 08:41:18,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 08:41:18,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 08:41:18,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 08:41:18,643 INFO L87 Difference]: Start difference. First operand has 142 states, 91 states have (on average 1.4395604395604396) internal successors, (131), 92 states have internal predecessors, (131), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-10-11 08:41:18,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 08:41:18,701 INFO L93 Difference]: Finished difference Result 281 states and 500 transitions. [2024-10-11 08:41:18,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 08:41:18,707 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) Word has length 292 [2024-10-11 08:41:18,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 08:41:18,718 INFO L225 Difference]: With dead ends: 281 [2024-10-11 08:41:18,718 INFO L226 Difference]: Without dead ends: 140 [2024-10-11 08:41:18,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 08:41:18,730 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 08:41:18,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 219 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 08:41:18,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-10-11 08:41:18,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2024-10-11 08:41:18,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 90 states have (on average 1.4) internal successors, (126), 90 states have internal predecessors, (126), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-11 08:41:18,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 222 transitions. [2024-10-11 08:41:18,803 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 222 transitions. Word has length 292 [2024-10-11 08:41:18,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 08:41:18,803 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 222 transitions. [2024-10-11 08:41:18,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-10-11 08:41:18,804 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 222 transitions. [2024-10-11 08:41:18,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-10-11 08:41:18,810 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 08:41:18,811 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 08:41:18,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 08:41:18,811 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 08:41:18,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 08:41:18,812 INFO L85 PathProgramCache]: Analyzing trace with hash -708999176, now seen corresponding path program 1 times [2024-10-11 08:41:18,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 08:41:18,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965656536] [2024-10-11 08:41:18,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 08:41:18,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 08:41:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 08:41:19,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 08:41:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 08:41:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 08:41:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 08:41:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 08:41:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 08:41:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 08:41:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 08:41:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 08:41:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 08:41:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 08:41:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 08:41:19,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 08:41:19,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 08:41:19,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 08:41:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 08:41:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 08:41:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 08:41:19,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 08:41:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-11 08:41:19,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 08:41:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-11 08:41:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-11 08:41:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-11 08:41:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 08:41:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 08:41:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-11 08:41:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-11 08:41:19,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-11 08:41:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-11 08:41:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 08:41:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-11 08:41:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-11 08:41:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-10-11 08:41:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-10-11 08:41:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-10-11 08:41:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-10-11 08:41:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-10-11 08:41:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-11 08:41:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-10-11 08:41:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-10-11 08:41:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-10-11 08:41:19,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-10-11 08:41:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-10-11 08:41:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-10-11 08:41:19,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-10-11 08:41:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-10-11 08:41:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 08:41:19,774 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-10-11 08:41:19,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 08:41:19,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965656536] [2024-10-11 08:41:19,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965656536] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 08:41:19,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 08:41:19,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 08:41:19,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191478532] [2024-10-11 08:41:19,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 08:41:19,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 08:41:19,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 08:41:19,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 08:41:19,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 08:41:19,784 INFO L87 Difference]: Start difference. First operand 140 states and 222 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-10-11 08:41:20,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 08:41:20,086 INFO L93 Difference]: Finished difference Result 419 states and 665 transitions. [2024-10-11 08:41:20,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 08:41:20,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 292 [2024-10-11 08:41:20,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 08:41:20,091 INFO L225 Difference]: With dead ends: 419 [2024-10-11 08:41:20,091 INFO L226 Difference]: Without dead ends: 280 [2024-10-11 08:41:20,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 08:41:20,097 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 169 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 08:41:20,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 644 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 08:41:20,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-10-11 08:41:20,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 247. [2024-10-11 08:41:20,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 148 states have (on average 1.3716216216216217) internal successors, (203), 148 states have internal predecessors, (203), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-10-11 08:41:20,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 395 transitions. [2024-10-11 08:41:20,175 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 395 transitions. Word has length 292 [2024-10-11 08:41:20,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 08:41:20,176 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 395 transitions. [2024-10-11 08:41:20,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-10-11 08:41:20,177 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 395 transitions. [2024-10-11 08:41:20,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-10-11 08:41:20,185 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 08:41:20,185 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 08:41:20,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 08:41:20,186 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 08:41:20,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 08:41:20,187 INFO L85 PathProgramCache]: Analyzing trace with hash -545372964, now seen corresponding path program 1 times [2024-10-11 08:41:20,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 08:41:20,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787984649] [2024-10-11 08:41:20,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 08:41:20,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 08:41:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat